expand collapse column not showing in IE7

[Anumeha]

I have a grid with grouping.
I want to show the expand collapse column. The column shows in IE8 but it's not visible in IE7.

Below is my grid declaration and my css.

<telerik:RadGrid ID="RadGridCalendar" runat="server" GridLines="None" AllowPaging="true"
                            PageSize="20" AllowFilteringByColumn="true" Width="980px" ShowHeader="true" OnColumnCreated="RadGridCalendar_ColumnCreated"
                            OnItemCreated="RadGridCalendar_ItemCreated" OnItemDataBound="RadGridCalendar_ItemDataBound"
                            OnPreRender="RadGridCalendar_PreRender" AutoGenerateColumns="False" EnableLinqExpressions="false"
                            ShowGroupPanel="false" OnItemCommand="RadGridCalendar_ItemCommand" AllowSorting="false"
                            AllowCustomPaging="false" OnNeedDataSource="RadGridCalendar_NeedDataSource">
                            <ClientSettings Resizing-AllowColumnResize="true">
                                <ClientEvents OnGridCreated="GridCreated" />
                                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="450px" />
                            </ClientSettings>
                            <ExportSettings IgnorePaging="true" OpenInNewWindow="true" ExportOnlyData="false"
                                FileName="CalendarExport">
                                <Pdf AllowAdd="false" AllowCopy="true" AllowModify="true" AllowPrinting="true" Author="Anonymous"
                                    Keywords="None" PageBottomMargin="0.5in" PageLeftMargin="0.5in" PageRightMargin="10px"
                                    PageWidth="615mm" PageHeight="170mm" PageTopMargin="0.5in" PageTitle="Calendar"
                                    Subject="Calendar Export" Title="Calendar" />
                            </ExportSettings>
                            <MasterTableView TableLayout="Fixed" HierarchyDefaultExpanded="true" ClientDataKeyNames="ActivityID, ContactID"
                                Width="100%" CommandItemDisplay="Top" DataKeyNames="ActivityID, ContactID">
                                <GroupByExpressions>
                                    <telerik:GridGroupByExpression>
                                        <SelectFields>
                                            <telerik:GridGroupByField FieldName="ToDoType" HeaderText=" " HeaderValueSeparator=""
                                                FormatString="{0}" SortOrder="Ascending"></telerik:GridGroupByField>
                                        </SelectFields>
                                        <GroupByFields>
                                            <telerik:GridGroupByField FieldName="ToDoType"></telerik:GridGroupByField>
                                        </GroupByFields>
                                    </telerik:GridGroupByExpression>
                                    <telerik:GridGroupByExpression>
                                        <SelectFields>
                                            <telerik:GridGroupByField FieldName="ActivityDate"></telerik:GridGroupByField>
                                        </SelectFields>
                                        <GroupByFields>
                                            <telerik:GridGroupByField FieldName="Date" FormatString="{0:d}" SortOrder="Descending">
                                            </telerik:GridGroupByField>
                                            <telerik:GridGroupByField FieldName="ActivityDate" FormatString="{0:D}" SortOrder="None">
                                            </telerik:GridGroupByField>
                                        </GroupByFields>
                                    </telerik:GridGroupByExpression>
                                </GroupByExpressions>
                                <Columns>
                                    <telerik:GridTemplateColumn UniqueName="DateColumn" HeaderText="Date">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="72px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="TimeColumn" HeaderText="Time">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="125px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <%# DataBinder.Eval(Container.DataItem, "StartTime") %>
                                                <asp:Label ID="Label1" runat="server" Visible='<%# !Convert.IsDBNull(Eval("EndTime")) %>'>-</asp:Label>
                                                <%# DataBinder.Eval(Container.DataItem, "EndTime") %>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Subject" HeaderText="Subject">
                                        <ItemStyle BorderStyle="None" HorizontalAlign="Left"></ItemStyle>
                                        <HeaderStyle Width="250px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div style="text-align: left;">
                                                <asp:LinkButton ID="LinkButtonActivity" runat="server" ForeColor="#73abc9" Font-Size="9pt"
                                                    CommandName="ShowActivity" Font-Bold="true">
                                                <%# Eval("Subject")%></asp:LinkButton>
                                                <asp:Label ID="LabelSubject" runat="server" CssClass="label" Width="1px" Visible="false"><%# Eval("Subject")%></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Location" HeaderText="Location">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="125px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelLocation" runat="server" Text='<%# Eval("Location")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="DueDate" HeaderText="Due Date" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelDueDate" runat="server" Text='<%# Eval("DueDate")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Contact" HeaderText="Contact">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="125px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                            <asp:LinkButton ID="LinkButtonContact" runat="server" ForeColor="#73abc9" Font-Size="9pt"
                                                    CommandName="ShowContact" Font-Bold="true">
                                                <%# Eval("Contact")%></asp:LinkButton>
                                                <asp:Label ID="LabelContact" runat="server" CssClass="label" Width="1px" Visible="false"><%# Eval("Contact")%></asp:Label>

                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Description" HeaderText="Description">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="175px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelDescription" runat="server" Text='<%# Eval("Description")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="ActivityStatus" HeaderText="Status" Visible="false"
                                        DataField="ActivityStatus" AllowFiltering="true">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelStatus" runat="server" Text='<%# Eval("ActivityStatus")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="ActivityType" HeaderText="Type" Visible="false"
                                        AllowFiltering="true" DataField="ActivityType">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelType" runat="server" Text='<%# Eval("ActivityType")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="ActivitySubType" HeaderText="Sub-Type" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelSubType" runat="server" Text='<%# Eval("ActivitySubType")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Keywords" HeaderText="Keywords" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelKeyword" runat="server" Text='<%# Eval("Keyword")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Priority" HeaderText="Priority" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelPriority" runat="server" Text='<%# Eval("Priority")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Company" HeaderText="Company" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelEmployer" runat="server" Text='<%# Eval("Employer")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Phone" HeaderText="Phone" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelPhone" runat="server" Text='<%# Eval("Phone")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="Participants" HeaderText="Participants" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelParticipants" runat="server" Text='<%# Eval("Participants")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="TimeSpent" HeaderText="TimeSpent" Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelTimeSpent" runat="server" Text='<%# Eval("TimeSpent")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="PercentComplete" HeaderText="% Complete"
                                        Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelPercentComplete" runat="server" Text='<%# Eval("PercentComplete")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridTemplateColumn UniqueName="SmartPadNote" HeaderText="Latest SmartPad Note"
                                        Visible="false">
                                        <ItemStyle BorderStyle="None"></ItemStyle>
                                        <HeaderStyle Width="100px" HorizontalAlign="Center" />
                                        <ItemTemplate>
                                            <div>
                                                <asp:Label ID="LabelSmartPadNote" runat="server" Text='<%# Eval("LatestSmartPadNote")%>'></asp:Label>
                                            </div>
                                        </ItemTemplate>
                                    </telerik:GridTemplateColumn>
                                    <telerik:GridBoundColumn DataField="ActivityID" Visible="false" UniqueName="ActivityID">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridDateTimeColumn DataField="Date" AllowFiltering="true" Visible="false"
                                        DataFormatString="{0:MM/dd/yyyy}" UniqueName="Date">
                                    </telerik:GridDateTimeColumn>
                                    <%-- <telerik:GridBoundColumn DataField="ActivityStatus" AllowFiltering="true" Visible="false"
                                    UniqueName="Status">
                                </telerik:GridBoundColumn>--%>
                                    <telerik:GridBoundColumn DataField="ActivityParticipant" AllowFiltering="true" Visible="false"
                                        UniqueName="ActivityParticipant">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn DataField="ActivityParticipantPrimary" AllowFiltering="true"
                                        Visible="false" UniqueName="ActivityParticipantPrimary">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn DataField="PrimaryParticipant" Visible="false" UniqueName="PrimaryParticipant">
                                    </telerik:GridBoundColumn>
                                    <telerik:GridBoundColumn DataField="ActivityParticipantCreatedBy" Visible="false"
                                        UniqueName="CreatedBy">
                                    </telerik:GridBoundColumn>
                                </Columns>
                                <HeaderStyle Width="100px" />
                                <CommandItemTemplate>
                                    <asp:ImageButton ID="ImageButtonAdd" runat="server" ImageUrl="~/App_Themes/MLightning/Layout/plus-icon.png"
                                        AlternateText="Add" PostBackUrl="~/Calendar/CalendarActivityAddSettings.aspx" />
                                    <asp:LinkButton ID="LinkButtonExportCalendar" runat="server" CommandName="ExportToPdf"
                                        CausesValidation="false">
                                    <img style="border:0px;vertical-align:middle;" alt="" src="../App_Themes/MLightning/Layout/Reader.gif" />
                                    <span class="printTop" > Export</span>
                                    </asp:LinkButton>
                                </CommandItemTemplate>
                                <PagerStyle Position="TopAndBottom" PrevPageText="Prev" NextPageText="Next" Mode="NextPrev" />
                            </MasterTableView>
                        </telerik:RadGrid>

/*Telerik RadGrid Default Skin*/

/*global*/

.RadGrid_MLightning
{
    background-position: #F9F9F9;
    background: #FFF;
    border: 0px !important;
    border-collapse: separate !important;
    color: #000;
    border-right-width: 0px;
    border-bottom-width: 0px;

}

.RadGrid_MLightning,
.RadGrid_MLightning .rgMasterTable,
.RadGrid_MLightning .rgDetailTable,
.RadGrid_MLightning .rgGroupPanel table,
.RadGrid_MLightning .rgCommandRow table,
.RadGrid_MLightning .rgEditForm table,
.RadGrid_MLightning .rgPager table,
.GridToolTip_MLightning
{
    font: Tahoma;
    border-right: 0px;
    border-bottom: 0px;
    border-top: 0px;
}

.RadGrid_MLightning .rgAdd,
.RadGrid_MLightning .rgRefresh,
.RadGrid_MLightning .rgEdit,
.RadGrid_MLightning .rgDel,
.RadGrid_MLightning .rgFilter,
.RadGrid_MLightning .rgPagePrev,
.RadGrid_MLightning .rgPageNext,
.RadGrid_MLightning .rgPageFirst,
.RadGrid_MLightning .rgPageLast,
.RadGrid_MLightning .rgExpand,
.RadGrid_MLightning .rgCollapse,
.RadGrid_MLightning .rgSortAsc,
.RadGrid_MLightning .rgSortDesc,
.RadGrid_MLightning .rgUpdate,
.RadGrid_MLightning .rgCancel,
.RadGrid_MLightning .rgUngroup,
.RadGrid_MLightning .rgExpXLS,
.RadGrid_MLightning .rgExpDOC,
.RadGrid_MLightning .rgExpPDF,
.RadGrid_MLightning .rgExpCSV
{
    background-image:url('Grid/sprite.gif');
}

/*header*/

.RadGrid_MLightning .rgHeaderDiv
{
    background:#ededed 0 -7550px repeat-x url('Grid/sprite.gif');
}
.rgTwoLines .rgHeaderDiv
{
    background-position:0 -7050px;
}

.RadGrid_MLightning .rgHeader,
.RadGrid_MLightning th.rgResizeCol
{
    border-right: solid 1px #FFFFFF;
    border-bottom:1px solid #828282;
    background: #003e7e repeat-x 0 100%;
    border-bottom: solid 1px #003e7e;
    border-top: solid 1px #003e7e;
    height: 16px;
    color: #ffffff;
    font-family:Tahoma;
    padding : 0px 5px 0px 5px;
}

.RadGrid_MLightning th.rgSorted
{
    background-color:#c4c4c4;
    background-position:0 -2600px;
}

.RadGrid_MLightning .rgHeader,
.RadGrid_MLightning .rgHeader a
{
    color: #ffffff;
    text-decoration: none;
}

/*rows*/

.RadGrid_MLightning .rgRow td,
.RadGrid_MLightning .rgAltRow td,
.RadGrid_MLightning .rgEditRow td,
.RadGrid_MLightning .rgFooter td
{
    border-style:solid;
    border-width: 0 0 1px 0;
    border-right-width : 1px;
}

.RadGrid_MLightning .rgRow td
{
    border-color:#ffffff;
    padding: 0 0 7px 0;
}


.RadGrid_MLightning .rgSelectedRow .rgSorted,
.RadGrid_MLightning .rgActiveRow .rgSorted,
.RadGrid_MLightning .rgHoveredRow .rgSorted,
.RadGrid_MLightning .rgEditRow .rgSorted
{
    background-color:transparent;
}

.RadGrid_MLightning .rgRow a,
.RadGrid_MLightning .rgAltRow a,
.RadGrid_MLightning .rgEditRow a,
.RadGrid_MLightning tr.rgEditRow a,
.RadGrid_MLightning tr.rgHoveredRow a,
.RadGrid_MLightning tr.rgActiveRow a,
.RadGrid_MLightning .rgFooter a,
.RadGrid_MLightning .rgEditForm a
{
    color:#000000;
}

.RadGrid_MLightning .rgSelectedRow
{
    background:#828282 0 -3900px repeat-x url('Grid/sprite.gif');
    color:#ffffff;
}
*+html .RadGrid_MLightning .rgSelectedRow .rgSorted{background-color:#828282}
* html .RadGrid_MLightning .rgSelectedRow .rgSorted{background-color:#828282}

.RadGrid_MLightning .rgSelectedRow a
{
    color:#ffffff;
}

.RadGrid_MLightning .rgActiveRow,
.RadGrid_MLightning .rgHoveredRow
{
    background:#c4c4c4 0 -2900px repeat-x url('Grid/sprite.gif');
    color:#333333;
}
*+html .RadGrid_MLightning .rgActiveRow .rgSorted,
*+html .RadGrid_MLightning .rgHoveredRow .rgSorted{background-color:#c4c4c4}
* html .RadGrid_MLightning .rgActiveRow .rgSorted,
* html .RadGrid_MLightning .rgHoveredRow .rgSorted{background-color:#c4c4c4}

.RadGrid_MLightning .rgEditRow
{
    background:#ffffff 0 -4900px repeat-x url('Grid/sprite.gif');
    color:#333333;
}
*+html .RadGrid_MLightning .rgEditRow .rgSorted{background-color:#ffffff}
* html .RadGrid_MLightning .rgEditRow .rgSorted{background-color:#ffffff}

.RadGrid_MLightning .rgActiveRow td,
.RadGrid_MLightning .rgActiveRow td.rgSorted,
.RadGrid_MLightning .rgHoveredRow td,
.RadGrid_MLightning .rgHoveredRow td.rgSorted
{
    border-bottom-color:#9e9e9e;
}

.RadGrid_MLightning .rgSelectedRow td,
.RadGrid_MLightning .rgSelectedRow td.rgSorted
{
    border-bottom-color:#6b6b6b;
}

/*footer*/

.RadGrid_MLightning .rgFooterDiv,
.RadGrid_MLightning .rgFooter
{
    background:#ededed;
}

.RadGrid_MLightning .rgFooter td
{
    border-top:1px solid #828282;
    border-bottom:1px solid #ffffff;
}

/*status*/

.RadGrid_MLightning .rgPager .rgStatus
{
    border:1px solid;
    border-color:#828282 #c9c9c9 #ededed #c9c9c9;
    border-left:0;
}

.RadGrid_MLightning .rgStatus div
{
    background-image:url('Common/loading_small.gif');
}

/*pager*/

.RadGrid_MLightning .rgPager
{
    background:#ededed;
}

.RadGrid_MLightning td.rgPagerCell
{
    border:1px solid;
    border-color:#828282 #ededed #ededed;
    border-right:0;
}

.RadGrid_MLightning .rgInfoPart
{
    color:#ffffff;
}

.RadGrid_MLightning .rgInfoPart strong
{
    color:#ffffff;
}

.RadGrid_MLightning .rgPageFirst
{
    background-position:0 -550px;
}
.RadGrid_MLightning .rgPageFirst:hover
{
    background-position:0 -600px;
}
.RadGrid_MLightning .rgPagePrev
{
    background-position:0 -700px;
}
.RadGrid_MLightning .rgPagePrev:hover
{
    background-position:0 -750px;
}
.RadGrid_MLightning .rgPageNext
{
    background-position:0 -850px;
}
.RadGrid_MLightning .rgPageNext:hover
{
    background-position:0 -900px;
}
.RadGrid_MLightning .rgPageLast
{
    background-position:0 -1000px;
}
.RadGrid_MLightning .rgPageLast:hover
{
    background-position:0 -1050px;
}

.RadGrid_MLightning .rgPager .rgPagerButton
{
    border-color:#d1d1d1 #adadad #8c8c8c;
    background:#e8e8e8 repeat-x 0 -1550px url('Grid/sprite.gif');
    color:#000000;
    font-family:"segoe ui",arial,sans-serif;
}

.RadGrid_MLightning .rgNumPart a:hover,
.RadGrid_MLightning .rgNumPart a:hover span,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage span
{
    background:no-repeat url('Grid/sprite.gif');
}

.RadGrid_MLightning .rgNumPart a
{
    color:#000000;
}

.RadGrid_MLightning .rgNumPart a:hover
{
    background-position:100% -1250px;
}

.RadGrid_MLightning .rgNumPart a:hover span
{
    background-position:0 -1150px;
}

.RadGrid_MLightning .rgNumPart a.rgCurrentPage,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage:hover
{
    background-position:100% -1450px;
}

.RadGrid_MLightning .rgNumPart a.rgCurrentPage span,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage:hover span
{
    background-position:0 -1350px;
}

/*sorting, reordering*/

.RadGrid_MLightning .rgHeader .rgSortAsc
{
    background-position:3px -248px;
    height:10px;
}

.RadGrid_MLightning .rgHeader .rgSortDesc
{
    background-position:3px -198px;
    height:10px;
}

.GridReorderTop_MLightning,
.GridReorderBottom_MLightning
{
    background:0 0 no-repeat url('Grid/sprite.gif');
}

.GridReorderBottom_MLightning
{
    background-position:0 -50px;
}

/*filtering*/

.RadGrid_MLightning .rgFilterRow
{
    background:#ededed;
}

.RadGrid_MLightning .rgFilterRow td
{
    border-bottom:1px solid #828282;
}

.RadGrid_MLightning .rgFilter
{
    background-position:0 -300px;
}

.RadGrid_MLightning .rgFilter:hover
{
    background-position:0 -350px;
}

.RadGrid_MLightning .rgFilterActive,
.RadGrid_MLightning .rgFilterActive:hover
{
    background-position:0 -400px;
}

.RadGrid_MLightning .rgFilterBox
{
    border-color:#8f8f8f #c9c9c9 #c9c9c9 #8f8f8f;
    font-family:"segoe ui",arial,sans-serif;
    color:#333333;
}

/*filter context menu*/

.RadMenu_MLightning .rgHCMClear,
.RadMenu_MLightning .rgHCMFilter
{
    border-color:#d1d1d1 #a8a8a8 #8c8c8c;
    background:#e8e8e8 center -23px repeat-x url('FormDecorator/ButtonSprites.gif');
    color:#000000;
    font-family:"segoe ui",arial,sans-serif;
}

.RadMenu_MLightning .rgHCMClear:hover,
.RadMenu_MLightning .rgHCMFilter:hover
{
    border-color:#d1d1d1 #bababa #a3a3a3;
    background-position:center -67px;
    background-color:#e6e6e6;
}

/*grouping*/

.RadGrid_MLightning .rgGroupPanel
{
    background-color: #e8e8e8;
    width: 100%;
    border-collapse: collapse;
    border-bottom: 1px solid #b1b1b1;
}

.RadGrid_MLightning .rgGroupPanel td
{
    padding: 2px 4px;
}

.RadGrid_MLightning .rgGroupPanel td td
{
    padding:0;
}

.RadGrid_MLightning .rgGroupPanel .rgSortAsc
{
    background-position:4px -144px;
}

.RadGrid_MLightning .rgGroupPanel .rgSortDesc
{
    background-position:4px -94px;
}

.RadGrid_MLightning .rgUngroup
{
    background-position:0 -6998px;
}

.RadGrid_MLightning .rgGroupItem
{
    background: #efefef;
    color: #999999;
    border: solid 1px white;
    border-right: solid 1px #c6c6c6;
    border-bottom: solid 1px #c6c6c6;
    white-space:  nowrap;
    font-size: 10px;
}

.RadGrid_MLightning .rgMasterTable td.rgGroupCol,
.RadGrid_MLightning .rgMasterTable td.rgExpandCol
{
    border-color:#d9d9d9;

}

.RadGrid_MLightning .rgGroupHeader
{
    height:15px;
}

.RadGrid_MLightning .rgGroupHeader td
{
    border-left:0px solid #fff;
    border-right:0;
    border-bottom: solid 1px #c2c2c2;
    font-family: Tahoma;
    font-size: 10pt;
    vertical-align: text-bottom !important;
}

.RadGrid_MLightning .rgGroupHeader td.rgGroupCol
{
    border-top-color:#828282;

}

.RadGrid_MLightning .rgExpand
{
    background-position:5px -496px;
}

.RadGrid_MLightning .rgCollapse
{
    background-position:3px -444px;
}

/*editing*/

.RadGrid_MLightning .rgEditForm
{
    border-bottom:1px solid #828282;
}

.RadGrid_MLightning .rgUpdate
{
    background-position:0 -1800px;
}

.RadGrid_MLightning .rgCancel
{
    background-position:0 -1850px;
}

/*hierarchy*/

.RadGrid_MLightning .rgDetailTable
{
    border-color:#828282;
}

/*command row*/

.RadGrid_MLightning .rgCommandRow
{
    background: #a7a7a9;
    color: #ffffff;
}

.RadGrid_MLightning .rgCommandCell
{
    background: #a7a7a9;
    border: solid 1px #c7c7c7;
    color: #ffffff;
    height: 16px;
    padding-top: 1px;
    padding-bottom: 1px;
    font-family: Tahoma;
    font-size: 9pt;
    text-align:right;

}

.RadGrid_MLightning tfoot .rgCommandCell
{
    border-top:1px solid;
    border-bottom:0;
}

.RadGrid_MLightning .rgCommandTable td
{
    border:0;
    padding:2px 7px;
}

.RadGrid_MLightning .rgCommandTable
{
    border:0;
    border-top:1px solid #fcfcfc;
    border-bottom:1px solid #e8e8e8;
}

.RadGrid_MLightning .rgCommandRow a
{
    color:#000000;
    text-decoration:none;
}

.RadGrid_MLightning .rgAdd
{
    margin-right:3px;
    background-position:0 -1650px;
}

.RadGrid_MLightning .rgRefresh
{
    margin-right:3px;
    background-position:0 -1600px;
}

.RadGrid_MLightning .rgEdit
{
    background-position:0 -1700px;
}

.RadGrid_MLightning .rgDel
{
    background-position:0 -1750px;
}

.RadGrid_MLightning .rgSelected .rgDel
{
    background-position:0 -1775px;
}

.RadGrid_MLightning .rgExpXLS,
.RadGrid_MLightning .rgExpDOC,
.RadGrid_MLightning .rgExpPDF,
.RadGrid_MLightning .rgExpCSV
{
    background-image:url('Grid/export.gif');
}

.RadGrid_MLightning .rgExpXLS
{
    background-position:0 0;
}
.RadGrid_MLightning .rgExpDOC
{
    background-position:0 -50px;
}
.RadGrid_MLightning .rgExpPDF
{
    background-position:0 -100px;
}
.RadGrid_MLightning .rgExpCSV
{
    background-position:0 -150px;
}

/*multirow select*/

.GridRowSelector_MLightning
{
    background:#545454;
}

/*row drag n drop*/

.GridItemDropIndicator_MLightning
{
    border-top:1px dashed #666666;
}

/*tooltip*/

.GridToolTip_MLightning
{
    border:1px solid #828282;
    padding:3px;
    background:#ffffff;
    color:#333333;
}

/*rtl*/

.RadGridRTL_MLightning .rgPageFirst
{
    background-position:0 -1000px;
}
.RadGridRTL_MLightning .rgPageFirst:hover
{
    background-position:0 -1050px;
}
.RadGridRTL_MLightning .rgPagePrev
{
    background-position:0 -850px;
}
.RadGridRTL_MLightning .rgPagePrev:hover
{
    background-position:0 -900px;
}
.RadGridRTL_MLightning .rgPageNext
{
    background-position:0 -700px;
}
.RadGridRTL_MLightning .rgPageNext:hover
{
    background-position:0 -750px;
}
.RadGridRTL_MLightning .rgPageLast
{
    background-position:0 -550px;
}
.RadGridRTL_MLightning .rgPageLast:hover
{
    background-position:0 -600px;
}


 DIV.RadGrid_MLightning TH.rgResizeCol {

    BACKGROUND-COLOR: #003E7E;

}

 DIV.RadGrid_MLightning .rgHeader {

    BACKGROUND-COLOR: #003E7E;

}

 DIV.RadGrid_MLightning .rgCommandRow {

    BACKGROUND-IMAGE: none;
    BACKGROUND-COLOR: #A7A7A9;

}

 DIV.RadGrid_MLightning .rgCommandCell {

    FONT-FAMILY: Tahoma;
    COLOR: #FFFFFF;

}

 DIV.RadGrid_MLightning TH.rgResizeCol {

    BACKGROUND-IMAGE: none;

    BORDER-TOP-COLOR: #00A1D6;

}

 DIV.RadGrid_MLightning .rgHeader {

    border-right: solid 1px #FFFFFF;
    border-bottom: solid 1px #003e7e;
    border-top: solid 1px #003e7e;
    background: #003e7e;
    font: bold 10pt Tahoma;
    color: #ffffff;
    height: 16px;
    vertical-align:middle;

}

 DIV.RadGrid_MLightning .rgHeader A {

    color: #ffffff;
    text-decoration: none;
    font: bold 11px Verdana, Arial, Sans-serif;
}

DIV.RadGrid_MLightning .rgRow TD,
DIV.RadGrid_MLightning .rgAltRow TD,
DIV.RadGrid_MLightning .rgSelectedRow TD,
DIV.RadGrid_MLightning .rgActiveRow TD,
DIV.RadGrid_MLightning .rgEditRow TD
{
    padding-top:2px;
    padding-bottom:2px;
}

 DIV.RadGrid_MLightning .rgFilterRow TD {

    FONT-FAMILY: Tahoma;

}

 DIV.RadGrid_MLightning .rgRow TD A,
 DIV.RadGrid_MLightning .rgAltRow TD A {

    color: #73abc9;
    font-family:Tahoma;
    font-size:8pt;

}

DIV.RadGrid_MLightning .rgRow TD,
DIV.RadGrid_MLightning .rgAltRow TD {

    BACKGROUND-COLOR: #FFFFFF;
    white-space: normal;
    text-align: center;
    color: #898a8c;
    font-family: Tahoma;
    font-size: 8pt;
    padding: 10px 0px 10px 0px;
    border: solid 1px #C4C4C4;

}

DIV.RadGrid_MLightning .rgRow TD DIV,
DIV.RadGrid_MLightning .rgAltRow TD DIV{

    padding-left: 5px ;
}

 DIV.RadGrid_MLightning .rgRow,
 DIV.RadGrid_MLightning .rgAltRow {

    COLOR: #898A8C;
    background: #ffffff;
}

 DIV.RadGrid_MLightning TR.rgSelectedRow {

    BACKGROUND-COLOR: #707070;

}

 DIV.RadGrid_MLightning TABLE .rgActiveRow {

    BACKGROUND-COLOR: #EDF2D9;

}

 DIV.RadGrid_MLightning TABLE TR.rgHoveredRow {

    BACKGROUND-COLOR: #FFFFFF;

}



 DIV.RadGrid_MLightning .rgPager {

    BACKGROUND-COLOR: #898A8C;
    border-right: 0;
    color: #999;

}

 DIV.RadGrid_MLightning .rgPager .rgPagerCell {

    COLOR: #FFFFFF;
    font-family: Tahoma;
    border: 1px solid #c7c7c7;
    height: 14px;
    padding-top: 1px;
    padding-bottom: 1px;
    font-family: Tahoma;
    font-size: 8pt;
}

DIV.RadGrid_MLightning .rgPager .rgPagerCell A{

    FONT-FAMILY: Tahoma;
    COLOR: #FFFFFF;
    padding-left : 5px;
}

 DIV.RadGrid_MLightning {

    PADDING-BOTTOM: 5px;

    MARGIN-TOP: 0px;

}

 DIV.RadGrid_MLightning TH.rgResizeCol {

    BORDER-LEFT-COLOR: transparent;

}

 DIV.RadGrid_MLightning .rgHeader {

    BORDER-LEFT-COLOR: transparent;

}

 DIV.RadGrid_MLightning .rgFilterRow TD {

    BORDER-BOTTOM: transparent 0px solid;

    BORDER-LEFT: #FFFFFF 1px solid;

    PADDING-BOTTOM: 0px;

    BACKGROUND-COLOR: #8FBCD1;

    BORDER-TOP-COLOR: transparent;

    PADDING-LEFT: 0px;

    PADDING-RIGHT: 0px;

    BORDER-RIGHT-COLOR: transparent;

    PADDING-TOP: 0px;

}



 DIV.RadGrid_MLightning .rgSelectedRow TD {

    PADDING-BOTTOM: 2px;

    PADDING-TOP: 2px;

}

 DIV.RadGrid_MLightning .rgFooter {

    COLOR: #FFFFFF;
}

 DIV.RadGrid_MLightning .rgPager {

    COLOR: #FFFFFF;

}



 DIV.RadGrid_MLightning .rgFooter TD {

    BACKGROUND-COLOR: #8FBCD1;

}

Please tell me if I ma missing something.

[Dimo]

Hi Anumeha,

I don't observe such an issue on my test page, based on your code snippets. Please send a standalone runnable demo.

By the way, what do you mean by "Expand Collapse Column" - is it the GridExpandColumn, which is related to hierarchy, or the GridGroupSplitterColumn, which is related to grouping? Currently you have no hierarchy configured, while the two GroupSplitterColumns show up in all browsers.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<script runat="server">

    protected void RadGridCalendar_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
    {
        DataTable dt = new DataTable();
        DataRow dr;
        int rowsNum = 20;
        string[][] colsInfo = {
        new string[] { "ActivityID", "number" },
        new string[] { "ContactID", "number" },
        new string[] { "ToDoType", "number" },
        new string[] { "ActivityDate", "date" },
        new string[] { "Date", "date" },
        new string[] { "StartTime", "date" },
        new string[] { "EndTime", "date" },
        new string[] { "Subject", "string" },
        new string[] { "Location", "string" },
        new string[] { "DueDate", "date" },
        new string[] { "Contact", "string" },
        new string[] { "Description", "string" },
        new string[] { "ActivityStatus", "string" },
        new string[] { "ActivityType", "string" },
        new string[] { "ActivitySubType", "string" },
        new string[] { "Keyword", "string" },
        new string[] { "Priority", "string" },
        new string[] { "Employer", "string" },
        new string[] { "Phone", "string" },
        new string[] { "Participants", "string" },
        new string[] { "TimeSpent", "number" },
        new string[] { "PercentComplete", "number" },
        new string[] { "LatestSmartPadNote", "string" },
        new string[] { "ActivityParticipant", "string" },
        new string[] { "ActivityParticipantPrimary", "string" },
        new string[] { "PrimaryParticipant", "string" },
        new string[] { "ActivityParticipantCreatedBy", "string" }
    };

        for (int i = 0; i < colsInfo.Length; i++)
        {
            switch (colsInfo[i][1])
            {
                case "string":
                    dt.Columns.Add(new DataColumn(colsInfo[i][0], typeof(String)));
                    break;
                case "number":
                    dt.Columns.Add(new DataColumn(colsInfo[i][0], typeof(Int32)));
                    break;
                case "date":
                    dt.Columns.Add(new DataColumn(colsInfo[i][0], typeof(DateTime)));
                    break;
                case "bool":
                    dt.Columns.Add(new DataColumn(colsInfo[i][0], typeof(Boolean)));
                    break;
                default:
                    break;
            }
        }

        for (int j = 1; j <= rowsNum; j++)
        {
            dr = dt.NewRow();

            for (int k = 0; k < colsInfo.Length; k++)
            {
                switch (colsInfo[k][1])
                {
                    case "string":
                        dr[colsInfo[k][0]] = String.Format("{0} Row{1}", colsInfo[k][0], j);
                        break;
                    case "number":
                        dr[colsInfo[k][0]] = j;
                        break;
                    case "date":
                        dr[colsInfo[k][0]] = DateTime.Now;
                        break;
                    case "bool":
                        dr[colsInfo[k][0]] = j % 2 == 1 ? true : false;
                        break;
                    default:
                        break;
                }
            }
            dt.Rows.Add(dr);
        }

        (sender as RadGrid).DataSource = dt;
    }

</script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>RadControls</title>
<style type="text/css">

.RadGrid_MLightning
{
    background-position: #F9F9F9;
    background: #FFF;
    border: 0px !important;
    border-collapse: separate !important;
    color: #000;
    border-right-width: 0px;
    border-bottom-width: 0px;

}

.RadGrid_MLightning,
.RadGrid_MLightning .rgMasterTable,
.RadGrid_MLightning .rgDetailTable,
.RadGrid_MLightning .rgGroupPanel table,
.RadGrid_MLightning .rgCommandRow table,
.RadGrid_MLightning .rgEditForm table,
.RadGrid_MLightning .rgPager table,
.GridToolTip_MLightning
{
    font: Tahoma;
    border-right: 0px;
    border-bottom: 0px;
    border-top: 0px;
}

.RadGrid_MLightning .rgAdd,
.RadGrid_MLightning .rgRefresh,
.RadGrid_MLightning .rgEdit,
.RadGrid_MLightning .rgDel,
.RadGrid_MLightning .rgFilter,
.RadGrid_MLightning .rgPagePrev,
.RadGrid_MLightning .rgPageNext,
.RadGrid_MLightning .rgPageFirst,
.RadGrid_MLightning .rgPageLast,
.RadGrid_MLightning .rgExpand,
.RadGrid_MLightning .rgCollapse,
.RadGrid_MLightning .rgSortAsc,
.RadGrid_MLightning .rgSortDesc,
.RadGrid_MLightning .rgUpdate,
.RadGrid_MLightning .rgCancel,
.RadGrid_MLightning .rgUngroup,
.RadGrid_MLightning .rgExpXLS,
.RadGrid_MLightning .rgExpDOC,
.RadGrid_MLightning .rgExpPDF,
.RadGrid_MLightning .rgExpCSV
{
    background-image:url('Grid/sprite.gif');
}

/*header*/

.RadGrid_MLightning .rgHeaderDiv
{
    background:#ededed 0 -7550px repeat-x url('Grid/sprite.gif');
}
.rgTwoLines .rgHeaderDiv
{
    background-position:0 -7050px;
}

.RadGrid_MLightning .rgHeader,
.RadGrid_MLightning th.rgResizeCol
{
    border-right: solid 1px #FFFFFF;
    border-bottom:1px solid #828282;
    background: #003e7e repeat-x 0 100%;
    border-bottom: solid 1px #003e7e;
    border-top: solid 1px #003e7e;
    height: 16px;
    color: #ffffff;
    font-family:Tahoma;
    padding : 0px 5px 0px 5px;
}

.RadGrid_MLightning th.rgSorted
{
    background-color:#c4c4c4;
    background-position:0 -2600px;
}

.RadGrid_MLightning .rgHeader,
.RadGrid_MLightning .rgHeader a
{
    color: #ffffff;
    text-decoration: none;
}

/*rows*/

.RadGrid_MLightning .rgRow td,
.RadGrid_MLightning .rgAltRow td,
.RadGrid_MLightning .rgEditRow td,
.RadGrid_MLightning .rgFooter td
{
    border-style:solid;
    border-width: 0 0 1px 0;
    border-right-width : 1px;
}

.RadGrid_MLightning .rgRow td
{
    border-color:#ffffff;
    padding: 0 0 7px 0;
}


.RadGrid_MLightning .rgSelectedRow .rgSorted,
.RadGrid_MLightning .rgActiveRow .rgSorted,
.RadGrid_MLightning .rgHoveredRow .rgSorted,
.RadGrid_MLightning .rgEditRow .rgSorted
{
    background-color:transparent;
}

.RadGrid_MLightning .rgRow a,
.RadGrid_MLightning .rgAltRow a,
.RadGrid_MLightning .rgEditRow a,
.RadGrid_MLightning tr.rgEditRow a,
.RadGrid_MLightning tr.rgHoveredRow a,
.RadGrid_MLightning tr.rgActiveRow a,
.RadGrid_MLightning .rgFooter a,
.RadGrid_MLightning .rgEditForm a
{
    color:#000000;
}

.RadGrid_MLightning .rgSelectedRow
{
    background:#828282 0 -3900px repeat-x url('Grid/sprite.gif');
    color:#ffffff;
}
*+html .RadGrid_MLightning .rgSelectedRow .rgSorted{background-color:#828282}
* html .RadGrid_MLightning .rgSelectedRow .rgSorted{background-color:#828282}

.RadGrid_MLightning .rgSelectedRow a
{
    color:#ffffff;
}

.RadGrid_MLightning .rgActiveRow,
.RadGrid_MLightning .rgHoveredRow
{
    background:#c4c4c4 0 -2900px repeat-x url('Grid/sprite.gif');
    color:#333333;
}
*+html .RadGrid_MLightning .rgActiveRow .rgSorted,
*+html .RadGrid_MLightning .rgHoveredRow .rgSorted{background-color:#c4c4c4}
* html .RadGrid_MLightning .rgActiveRow .rgSorted,
* html .RadGrid_MLightning .rgHoveredRow .rgSorted{background-color:#c4c4c4}

.RadGrid_MLightning .rgEditRow
{
    background:#ffffff 0 -4900px repeat-x url('Grid/sprite.gif');
    color:#333333;
}
*+html .RadGrid_MLightning .rgEditRow .rgSorted{background-color:#ffffff}
* html .RadGrid_MLightning .rgEditRow .rgSorted{background-color:#ffffff}

.RadGrid_MLightning .rgActiveRow td,
.RadGrid_MLightning .rgActiveRow td.rgSorted,
.RadGrid_MLightning .rgHoveredRow td,
.RadGrid_MLightning .rgHoveredRow td.rgSorted
{
    border-bottom-color:#9e9e9e;
}

.RadGrid_MLightning .rgSelectedRow td,
.RadGrid_MLightning .rgSelectedRow td.rgSorted
{
    border-bottom-color:#6b6b6b;
}

/*footer*/

.RadGrid_MLightning .rgFooterDiv,
.RadGrid_MLightning .rgFooter
{
    background:#ededed;
}

.RadGrid_MLightning .rgFooter td
{
    border-top:1px solid #828282;
    border-bottom:1px solid #ffffff;
}

/*status*/

.RadGrid_MLightning .rgPager .rgStatus
{
    border:1px solid;
    border-color:#828282 #c9c9c9 #ededed #c9c9c9;
    border-left:0;
}

.RadGrid_MLightning .rgStatus div
{
    background-image:url('Common/loading_small.gif');
}

/*pager*/

.RadGrid_MLightning .rgPager
{
    background:#ededed;
}

.RadGrid_MLightning td.rgPagerCell
{
    border:1px solid;
    border-color:#828282 #ededed #ededed;
    border-right:0;
}

.RadGrid_MLightning .rgInfoPart
{
    color:#ffffff;
}

.RadGrid_MLightning .rgInfoPart strong
{
    color:#ffffff;
}

.RadGrid_MLightning .rgPageFirst
{
    background-position:0 -550px;
}
.RadGrid_MLightning .rgPageFirst:hover
{
    background-position:0 -600px;
}
.RadGrid_MLightning .rgPagePrev
{
    background-position:0 -700px;
}
.RadGrid_MLightning .rgPagePrev:hover
{
    background-position:0 -750px;
}
.RadGrid_MLightning .rgPageNext
{
    background-position:0 -850px;
}
.RadGrid_MLightning .rgPageNext:hover
{
    background-position:0 -900px;
}
.RadGrid_MLightning .rgPageLast
{
    background-position:0 -1000px;
}
.RadGrid_MLightning .rgPageLast:hover
{
    background-position:0 -1050px;
}

.RadGrid_MLightning .rgPager .rgPagerButton
{
    border-color:#d1d1d1 #adadad #8c8c8c;
    background:#e8e8e8 repeat-x 0 -1550px url('Grid/sprite.gif');
    color:#000000;
    font-family:"segoe ui",arial,sans-serif;
}

.RadGrid_MLightning .rgNumPart a:hover,
.RadGrid_MLightning .rgNumPart a:hover span,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage span
{
    background:no-repeat url('Grid/sprite.gif');
}

.RadGrid_MLightning .rgNumPart a
{
    color:#000000;
}

.RadGrid_MLightning .rgNumPart a:hover
{
    background-position:100% -1250px;
}

.RadGrid_MLightning .rgNumPart a:hover span
{
    background-position:0 -1150px;
}

.RadGrid_MLightning .rgNumPart a.rgCurrentPage,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage:hover
{
    background-position:100% -1450px;
}

.RadGrid_MLightning .rgNumPart a.rgCurrentPage span,
.RadGrid_MLightning .rgNumPart a.rgCurrentPage:hover span
{
    background-position:0 -1350px;
}

/*sorting, reordering*/

.RadGrid_MLightning .rgHeader .rgSortAsc
{
    background-position:3px -248px;
    height:10px;
}

.RadGrid_MLightning .rgHeader .rgSortDesc
{
    background-position:3px -198px;
    height:10px;
}

.GridReorderTop_MLightning,
.GridReorderBottom_MLightning
{
    background:0 0 no-repeat url('Grid/sprite.gif');
}

.GridReorderBottom_MLightning
{
    background-position:0 -50px;
}

/*filtering*/

.RadGrid_MLightning .rgFilterRow
{
    background:#ededed;
}

.RadGrid_MLightning .rgFilterRow td
{
    border-bottom:1px solid #828282;
}

.RadGrid_MLightning .rgFilter
{
    background-position:0 -300px;
}

.RadGrid_MLightning .rgFilter:hover
{
    background-position:0 -350px;
}

.RadGrid_MLightning .rgFilterActive,
.RadGrid_MLightning .rgFilterActive:hover
{
    background-position:0 -400px;
}

.RadGrid_MLightning .rgFilterBox
{
    border-color:#8f8f8f #c9c9c9 #c9c9c9 #8f8f8f;
    font-family:"segoe ui",arial,sans-serif;
    color:#333333;
}

/*filter context menu*/

.RadMenu_MLightning .rgHCMClear,
.RadMenu_MLightning .rgHCMFilter
{
    border-color:#d1d1d1 #a8a8a8 #8c8c8c;
    background:#e8e8e8 center -23px repeat-x url('FormDecorator/ButtonSprites.gif');
    color:#000000;
    font-family:"segoe ui",arial,sans-serif;
}

.RadMenu_MLightning .rgHCMClear:hover,
.RadMenu_MLightning .rgHCMFilter:hover
{
    border-color:#d1d1d1 #bababa #a3a3a3;
    background-position:center -67px;
    background-color:#e6e6e6;
}

/*grouping*/

.RadGrid_MLightning .rgGroupPanel
{
    background-color: #e8e8e8;
    width: 100%;
    border-collapse: collapse;
    border-bottom: 1px solid #b1b1b1;
}

.RadGrid_MLightning .rgGroupPanel td
{
    padding: 2px 4px;
}

.RadGrid_MLightning .rgGroupPanel td td
{
    padding:0;
}

.RadGrid_MLightning .rgGroupPanel .rgSortAsc
{
    background-position:4px -144px;
}

.RadGrid_MLightning .rgGroupPanel .rgSortDesc
{
    background-position:4px -94px;
}

.RadGrid_MLightning .rgUngroup
{
    background-position:0 -6998px;
}

.RadGrid_MLightning .rgGroupItem
{
    background: #efefef;
    color: #999999;
    border: solid 1px white;
    border-right: solid 1px #c6c6c6;
    border-bottom: solid 1px #c6c6c6;
    white-space:  nowrap;
    font-size: 10px;
}

.RadGrid_MLightning .rgMasterTable td.rgGroupCol,
.RadGrid_MLightning .rgMasterTable td.rgExpandCol
{
    border-color:#d9d9d9;

}

.RadGrid_MLightning .rgGroupHeader
{
    height:15px;
}

.RadGrid_MLightning .rgGroupHeader td
{
    border-left:0px solid #fff;
    border-right:0;
    border-bottom: solid 1px #c2c2c2;
    font-family: Tahoma;
    font-size: 10pt;
    vertical-align: text-bottom !important;
}

.RadGrid_MLightning .rgGroupHeader td.rgGroupCol
{
    border-top-color:#828282;

}

.RadGrid_MLightning .rgExpand
{
    background-position:5px -496px;
}

.RadGrid_MLightning .rgCollapse
{
    background-position:3px -444px;
}

/*editing*/

.RadGrid_MLightning .rgEditForm
{
    border-bottom:1px solid #828282;
}

.RadGrid_MLightning .rgUpdate
{
    background-position:0 -1800px;
}

.RadGrid_MLightning .rgCancel
{
    background-position:0 -1850px;
}

/*hierarchy*/

.RadGrid_MLightning .rgDetailTable
{
    border-color:#828282;
}

/*command row*/

.RadGrid_MLightning .rgCommandRow
{
    background: #a7a7a9;
    color: #ffffff;
}

.RadGrid_MLightning .rgCommandCell
{
    background: #a7a7a9;
    border: solid 1px #c7c7c7;
    color: #ffffff;
    height: 16px;
    padding-top: 1px;
    padding-bottom: 1px;
    font-family: Tahoma;
    font-size: 9pt;
    text-align:right;

}

.RadGrid_MLightning tfoot .rgCommandCell
{
    border-top:1px solid;
    border-bottom:0;
}

.RadGrid_MLightning .rgCommandTable td
{
    border:0;
    padding:2px 7px;
}

.RadGrid_MLightning .rgCommandTable
{
    border:0;
    border-top:1px solid #fcfcfc;
    border-bottom:1px solid #e8e8e8;
}

.RadGrid_MLightning .rgCommandRow a
{
    color:#000000;
    text-decoration:none;
}

.RadGrid_MLightning .rgAdd
{
    margin-right:3px;
    background-position:0 -1650px;
}

.RadGrid_MLightning .rgRefresh
{
    margin-right:3px;
    background-position:0 -1600px;
}

.RadGrid_MLightning .rgEdit
{
    background-position:0 -1700px;
}

.RadGrid_MLightning .rgDel
{
    background-position:0 -1750px;
}

.RadGrid_MLightning .rgSelected .rgDel
{
    background-position:0 -1775px;
}

.RadGrid_MLightning .rgExpXLS,
.RadGrid_MLightning .rgExpDOC,
.RadGrid_MLightning .rgExpPDF,
.RadGrid_MLightning .rgExpCSV
{
    background-image:url('Grid/export.gif');
}

.RadGrid_MLightning .rgExpXLS
{
    background-position:0 0;
}
.RadGrid_MLightning .rgExpDOC
{
    background-position:0 -50px;
}
.RadGrid_MLightning .rgExpPDF
{
    background-position:0 -100px;
}
.RadGrid_MLightning .rgExpCSV
{
    background-position:0 -150px;
}

/*multirow select*/

.GridRowSelector_MLightning
{
    background:#545454;
}

/*row drag n drop*/

.GridItemDropIndicator_MLightning
{
    border-top:1px dashed #666666;
}

/*tooltip*/

.GridToolTip_MLightning
{
    border:1px solid #828282;
    padding:3px;
    background:#ffffff;
    color:#333333;
}

/*rtl*/

.RadGridRTL_MLightning .rgPageFirst
{
    background-position:0 -1000px;
}
.RadGridRTL_MLightning .rgPageFirst:hover
{
    background-position:0 -1050px;
}
.RadGridRTL_MLightning .rgPagePrev
{
    background-position:0 -850px;
}
.RadGridRTL_MLightning .rgPagePrev:hover
{
    background-position:0 -900px;
}
.RadGridRTL_MLightning .rgPageNext
{
    background-position:0 -700px;
}
.RadGridRTL_MLightning .rgPageNext:hover
{
    background-position:0 -750px;
}
.RadGridRTL_MLightning .rgPageLast
{
    background-position:0 -550px;
}
.RadGridRTL_MLightning .rgPageLast:hover
{
    background-position:0 -600px;
}


 DIV.RadGrid_MLightning TH.rgResizeCol {

    BACKGROUND-COLOR: #003E7E;

}

 DIV.RadGrid_MLightning .rgHeader {

    BACKGROUND-COLOR: #003E7E;

}

 DIV.RadGrid_MLightning .rgCommandRow {

    BACKGROUND-IMAGE: none;
    BACKGROUND-COLOR: #A7A7A9;

}

 DIV.RadGrid_MLightning .rgCommandCell {

    FONT-FAMILY: Tahoma;
    COLOR: #FFFFFF;

}

 DIV.RadGrid_MLightning TH.rgResizeCol {

    BACKGROUND-IMAGE: none;

    BORDER-TOP-COLOR: #00A1D6;

}

 DIV.RadGrid_MLightning .rgHeader {

    border-right: solid 1px #FFFFFF;
    border-bottom: solid 1px #003e7e;
    border-top: solid 1px #003e7e;
    background: #003e7e;
    font: bold 10pt Tahoma;
    color: #ffffff;
    height: 16px;
    vertical-align:middle;

}

 DIV.RadGrid_MLightning .rgHeader A {

    color: #ffffff;
    text-decoration: none;
    font: bold 11px Verdana, Arial, Sans-serif;
}

DIV.RadGrid_MLightning .rgRow TD,
DIV.RadGrid_MLightning .rgAltRow TD,
DIV.RadGrid_MLightning .rgSelectedRow TD,
DIV.RadGrid_MLightning .rgActiveRow TD,
DIV.RadGrid_MLightning .rgEditRow TD
{
    padding-top:2px;
    padding-bottom:2px;
}

 DIV.RadGrid_MLightning .rgFilterRow TD {

    FONT-FAMILY: Tahoma;

}

 DIV.RadGrid_MLightning .rgRow TD A,
 DIV.RadGrid_MLightning .rgAltRow TD A {

    color: #73abc9;
    font-family:Tahoma;
    font-size:8pt;

}

DIV.RadGrid_MLightning .rgRow TD,
DIV.RadGrid_MLightning .rgAltRow TD {

    BACKGROUND-COLOR: #FFFFFF;
    white-space: normal;
    text-align: center;
    color: #898a8c;
    font-family: Tahoma;
    font-size: 8pt;
    padding: 10px 0px 10px 0px;
    border: solid 1px #C4C4C4;

}

DIV.RadGrid_MLightning .rgRow TD DIV,
DIV.RadGrid_MLightning .rgAltRow TD DIV{

    padding-left: 5px ;
}

 DIV.RadGrid_MLightning .rgRow,
 DIV.RadGrid_MLightning .rgAltRow {

    COLOR: #898A8C;
    background: #ffffff;
}

 DIV.RadGrid_MLightning TR.rgSelectedRow {

    BACKGROUND-COLOR: #707070;

}

 DIV.RadGrid_MLightning TABLE .rgActiveRow {

    BACKGROUND-COLOR: #EDF2D9;

}

 DIV.RadGrid_MLightning TABLE TR.rgHoveredRow {

    BACKGROUND-COLOR: #FFFFFF;

}



 DIV.RadGrid_MLightning .rgPager {

    BACKGROUND-COLOR: #898A8C;
    border-right: 0;
    color: #999;

}

 DIV.RadGrid_MLightning .rgPager .rgPagerCell {

    COLOR: #FFFFFF;
    font-family: Tahoma;
    border: 1px solid #c7c7c7;
    height: 14px;
    padding-top: 1px;
    padding-bottom: 1px;
    font-family: Tahoma;
    font-size: 8pt;
}

DIV.RadGrid_MLightning .rgPager .rgPagerCell A{

    FONT-FAMILY: Tahoma;
    COLOR: #FFFFFF;
    padding-left : 5px;
}

 DIV.RadGrid_MLightning {

    PADDING-BOTTOM: 5px;

    MARGIN-TOP: 0px;

}

 DIV.RadGrid_MLightning TH.rgResizeCol {

    BORDER-LEFT-COLOR: transparent;

}

 DIV.RadGrid_MLightning .rgHeader {

    BORDER-LEFT-COLOR: transparent;

}

 DIV.RadGrid_MLightning .rgFilterRow TD {

    BORDER-BOTTOM: transparent 0px solid;

    BORDER-LEFT: #FFFFFF 1px solid;

    PADDING-BOTTOM: 0px;

    BACKGROUND-COLOR: #8FBCD1;

    BORDER-TOP-COLOR: transparent;

    PADDING-LEFT: 0px;

    PADDING-RIGHT: 0px;

    BORDER-RIGHT-COLOR: transparent;

    PADDING-TOP: 0px;

}



 DIV.RadGrid_MLightning .rgSelectedRow TD {

    PADDING-BOTTOM: 2px;

    PADDING-TOP: 2px;

}

 DIV.RadGrid_MLightning .rgFooter {

    COLOR: #FFFFFF;
}

 DIV.RadGrid_MLightning .rgPager {

    COLOR: #FFFFFF;

}



 DIV.RadGrid_MLightning .rgFooter TD {

    BACKGROUND-COLOR: #8FBCD1;

}

</style>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadGrid ID="RadGridCalendar" runat="server" GridLines="None" AllowPaging="true"
    PageSize="20" AllowFilteringByColumn="true" Width="980px" ShowHeader="true"
    Skin="MLightning" EnableEmbeddedSkins="false"
    AutoGenerateColumns="False"
    ShowGroupPanel="false" AllowSorting="false"
    AllowCustomPaging="false" OnNeedDataSource="RadGridCalendar_NeedDataSource">
    <ClientSettings Resizing-AllowColumnResize="true">
        <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="450px" />
    </ClientSettings>
    <ExportSettings IgnorePaging="true" OpenInNewWindow="true" ExportOnlyData="false"
        FileName="CalendarExport">
        <Pdf AllowAdd="false" AllowCopy="true" AllowModify="true" AllowPrinting="true" Author="Anonymous"
            Keywords="None" PageBottomMargin="0.5in" PageLeftMargin="0.5in" PageRightMargin="10px"
            PageWidth="615mm" PageHeight="170mm" PageTopMargin="0.5in" PageTitle="Calendar"
            Subject="Calendar Export" Title="Calendar" />
    </ExportSettings>
    <MasterTableView TableLayout="Fixed" HierarchyDefaultExpanded="true" ClientDataKeyNames="ActivityID, ContactID"
        Width="100%" CommandItemDisplay="Top" DataKeyNames="ActivityID, ContactID">
        <GroupByExpressions>
            <telerik:GridGroupByExpression>
                <SelectFields>
                    <telerik:GridGroupByField FieldName="ToDoType" HeaderText=" " HeaderValueSeparator=""
                        FormatString="{0}" SortOrder="Ascending"></telerik:GridGroupByField>
                </SelectFields>
                <GroupByFields>
                    <telerik:GridGroupByField FieldName="ToDoType"></telerik:GridGroupByField>
                </GroupByFields>
            </telerik:GridGroupByExpression>
            <telerik:GridGroupByExpression>
                <SelectFields>
                    <telerik:GridGroupByField FieldName="ActivityDate"></telerik:GridGroupByField>
                </SelectFields>
                <GroupByFields>
                    <telerik:GridGroupByField FieldName="Date" FormatString="{0:d}" SortOrder="Descending">
                    </telerik:GridGroupByField>
                    <telerik:GridGroupByField FieldName="ActivityDate" FormatString="{0:D}" SortOrder="None">
                    </telerik:GridGroupByField>
                </GroupByFields>
            </telerik:GridGroupByExpression>
        </GroupByExpressions>
        <Columns>
            <telerik:GridTemplateColumn UniqueName="DateColumn" HeaderText="Date">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="72px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="TimeColumn" HeaderText="Time">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="125px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <%# DataBinder.Eval(Container.DataItem, "StartTime") %>
                        <asp:Label ID="Label1" runat="server" Visible='<%# !Convert.IsDBNull(Eval("EndTime")) %>'>-</asp:Label>
                        <%# DataBinder.Eval(Container.DataItem, "EndTime") %>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Subject" HeaderText="Subject">
                <ItemStyle BorderStyle="None" HorizontalAlign="Left"></ItemStyle>
                <HeaderStyle Width="250px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div style="text-align: left;">
                        <asp:LinkButton ID="LinkButtonActivity" runat="server" ForeColor="#73abc9" Font-Size="9pt"
                            CommandName="ShowActivity" Font-Bold="true">
                        <%# Eval("Subject")%></asp:LinkButton>
                        <asp:Label ID="LabelSubject" runat="server" CssClass="label" Width="1px" Visible="false"><%# Eval("Subject")%></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Location" HeaderText="Location">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="125px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelLocation" runat="server" Text='<%# Eval("Location")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="DueDate" HeaderText="Due Date" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelDueDate" runat="server" Text='<%# Eval("DueDate")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Contact" HeaderText="Contact">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="125px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                    <asp:LinkButton ID="LinkButtonContact" runat="server" ForeColor="#73abc9" Font-Size="9pt"
                            CommandName="ShowContact" Font-Bold="true">
                        <%# Eval("Contact")%></asp:LinkButton>
                        <asp:Label ID="LabelContact" runat="server" CssClass="label" Width="1px" Visible="false"><%# Eval("Contact")%></asp:Label>

                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Description" HeaderText="Description">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="175px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelDescription" runat="server" Text='<%# Eval("Description")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="ActivityStatus" HeaderText="Status" Visible="false"
                DataField="ActivityStatus" AllowFiltering="true">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelStatus" runat="server" Text='<%# Eval("ActivityStatus")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="ActivityType" HeaderText="Type" Visible="false"
                AllowFiltering="true" DataField="ActivityType">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelType" runat="server" Text='<%# Eval("ActivityType")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="ActivitySubType" HeaderText="Sub-Type" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelSubType" runat="server" Text='<%# Eval("ActivitySubType")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Keywords" HeaderText="Keywords" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelKeyword" runat="server" Text='<%# Eval("Keyword")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Priority" HeaderText="Priority" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelPriority" runat="server" Text='<%# Eval("Priority")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Company" HeaderText="Company" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelEmployer" runat="server" Text='<%# Eval("Employer")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Phone" HeaderText="Phone" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelPhone" runat="server" Text='<%# Eval("Phone")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="Participants" HeaderText="Participants" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelParticipants" runat="server" Text='<%# Eval("Participants")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="TimeSpent" HeaderText="TimeSpent" Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelTimeSpent" runat="server" Text='<%# Eval("TimeSpent")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="PercentComplete" HeaderText="% Complete"
                Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelPercentComplete" runat="server" Text='<%# Eval("PercentComplete")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn UniqueName="SmartPadNote" HeaderText="Latest SmartPad Note"
                Visible="false">
                <ItemStyle BorderStyle="None"></ItemStyle>
                <HeaderStyle Width="100px" HorizontalAlign="Center" />
                <ItemTemplate>
                    <div>
                        <asp:Label ID="LabelSmartPadNote" runat="server" Text='<%# Eval("LatestSmartPadNote")%>'></asp:Label>
                    </div>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridBoundColumn DataField="ActivityID" Visible="false" UniqueName="ActivityID">
            </telerik:GridBoundColumn>
            <telerik:GridDateTimeColumn DataField="Date" AllowFiltering="true" Visible="false"
                DataFormatString="{0:MM/dd/yyyy}" UniqueName="Date">
            </telerik:GridDateTimeColumn>
            <%-- <telerik:GridBoundColumn DataField="ActivityStatus" AllowFiltering="true" Visible="false"
            UniqueName="Status">
        </telerik:GridBoundColumn>--%>
            <telerik:GridBoundColumn DataField="ActivityParticipant" AllowFiltering="true" Visible="false"
                UniqueName="ActivityParticipant">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="ActivityParticipantPrimary" AllowFiltering="true"
                Visible="false" UniqueName="ActivityParticipantPrimary">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="PrimaryParticipant" Visible="false" UniqueName="PrimaryParticipant">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="ActivityParticipantCreatedBy" Visible="false"
                UniqueName="CreatedBy">
            </telerik:GridBoundColumn>
        </Columns>
        <HeaderStyle Width="100px" />
        <CommandItemTemplate>
            <asp:ImageButton ID="ImageButtonAdd" runat="server" ImageUrl="~/App_Themes/MLightning/Layout/plus-icon.png"
                AlternateText="Add" PostBackUrl="~/Calendar/CalendarActivityAddSettings.aspx" />
            <asp:LinkButton ID="LinkButtonExportCalendar" runat="server" CommandName="ExportToPdf"
                CausesValidation="false">
            <img style="border:0px;vertical-align:middle;" alt="" src="../App_Themes/MLightning/Layout/Reader.gif" />
            <span class="printTop" > Export</span>
            </asp:LinkButton>
        </CommandItemTemplate>
        <PagerStyle Position="TopAndBottom" PrevPageText="Prev" NextPageText="Next" Mode="NextPrev" />
    </MasterTableView>
</telerik:RadGrid>


</form>
</body>
</html>

All the best,
Dimo
the Telerik team

[Anumeha]

sorry if my understanding is wrong.
I am not sure what a grid groupsplitter column does but i want to show a expand button for my groups so that the user can expand collapse the groups.
With the current implementation i only see the expnad button in IE8 and not in IE7.

I will try to send a runnable demo.

[Anumeha]

Dimo,

Thanks for your response. I was setting the width of the splittercolumn to 1 px in my code becuase I had to hide it based on an earlier requirement. I increased the width and the expand image shows in IE7 as well.

Thanks.