Hi, I am trying to export Excel from RadGrid control, but its giving page error. Unable to debug also. Immediately its expires the page. I have used <GroupByExpressions> option in grid. Is this not allowing us to export excel ?
Because I didn't find any demos or example in from your end on export excel with <GroupByExpressions> option.

In the code behind C# code - 
buttonexport click event i have written below code



if you mentioned below line before exporting method. Getting page error - 


below is the apx code - 


Can you please help out, how to export excel when we have <GroupByExpressions> option on aspx page.
Let me know if you need any more information.


for the reference I have added snapshots

I have only tested this issue on Chrome so far. Whenever I apply the filters to the Grid I am getting exception below. Sorting, Paging seem to work ok. Can someone please help with this issue?

.NET Framework=3.5
Visual Studio=2008
Ajax Controls =Telerik_UI_for_ASP.NET_AJAX_2015_1_225

Exception:
Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Specified argument was out of the range of valid values.
Parameter name: index

vb.net file code:

    Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
        PopulateGridView()
        If Not rgrdEMS.MasterTableView.FilterExpression Is String.Empty Then
            rgrdEMS.MasterTableView.Rebind()
        End If
    End Sub

    Public Function PopulateGridView() As String
        Dim oEms = GetPS2.GetEMs 'returns datatable
        rgrdEMS.DataSource = oEms
        rgrdEMS.DataBind()
        Return "Populated"
    End Function

ASPX code:


    <telerik:RadScriptManager ID="RadScriptManager1" runat="server" EnablePageMethods="true"  >
    </telerik:RadScriptManager>
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server">
    </telerik:RadSkinManager>
        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Transparency="30" Skin="Silk" >
        </telerik:RadAjaxLoadingPanel>
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
            <AjaxSettings>
                <telerik:AjaxSetting AjaxControlID="rgrdEMS">
                    <UpdatedControls>
                        <telerik:AjaxUpdatedControl ControlID="rgrdEMS" LoadingPanelID="RadAjaxLoadingPanel1" />
                        <telerik:AjaxUpdatedControl ControlID="EMEditWindow"/>
                    </UpdatedControls>
                </telerik:AjaxSetting>
            </AjaxSettings>
        </telerik:RadAjaxManager>
            <telerik:RadPersistenceManager ID="RadPersistenceManager1" runat="server">
                <PersistenceSettings>
                    <telerik:PersistenceSetting ControlID="rgrdEMS" />
                </PersistenceSettings>
            </telerik:RadPersistenceManager>
            <table style="width: 100%; margin:0px; padding:0px; border-spacing:0px;">
                <tr>
                    <td style="height: 600px; border: solid 1px blue; vertical-align: top; margin:0px; padding:0px;">                                                                               
                        <div style="width:100%;">
                            <table style="width: 100%; margin-bottom:2px; ">
                                <tr style="margin:2px; border-width:0px; color: #FFFFFF; background-color: #025BB5;">
                                    <td style="margin:2px; text-align:center; ">                                    
                                        <asp:Label ID="lblTitle" runat="server" Text="Manage Engagement Managers" style="font-size:x-large; font-weight:bold;  margin-bottom:2px; "></asp:Label>
                                    </td>
                                </tr>
                            </table>
                            <table style="margin-left: 2px; margin-right: 3px; margin-top: 2px;margin-left: -x/2px;">
                                <tr>
                                    <td>

<telerik:RadGrid ID="rgrdEMS" runat="server" AllowPaging="True" PageSize="15" AllowSorting="True"
                                        AllowFilteringByColumn="True" CommandItemDisplay="Top" EnableLinqExpressions="false"
                                        OnItemCommand="rgrdEMS_ItemCommand" CellSpacing="0" GridLines="None" Skin="Silk">
                                        <MasterTableView AutoGenerateColumns="false" CommandItemDisplay="Top" TableLayout="Fixed" >
                                            <CommandItemTemplate>
                                                <div style="padding: 5px 5px;">
                                                    <asp:LinkButton ID="LinkButton2" runat="server" OnClientClick="openConfirmationWindow('',0,0,'','',''); return false;" Visible="true"><img style="border:0px;vertical-align:middle;" alt="" src="Images/AddRecord.png"/>Add new EM</asp:LinkButton>&nbsp;&nbsp;
                                                    <asp:LinkButton ID="LinkButton4" runat="server" CommandName="RebindGrid"><img style="border:0px;vertical-align:middle;" alt="" src="Images/Refresh.png"/>Refresh EM list</asp:LinkButton>
                                                </div>
                                            </CommandItemTemplate>
                                            <ColumnGroups>
                                                <telerik:GridColumnGroup Name="GeneralInformation" HeaderText="General Information"
                                                    HeaderStyle-HorizontalAlign="Center" />
                                                <telerik:GridColumnGroup Name="Location" HeaderText="Location"
                                                    HeaderStyle-HorizontalAlign="Center" />
                                            </ColumnGroups>
                                            <HeaderStyle Width="102px" />
                                            <Columns>
                                                <telerik:GridTemplateColumn ColumnGroupName="GeneralInformation">
                                                      <HeaderStyle Width="55px" />
                                                      <ItemTemplate>      
                                                          <asp:ImageButton ID="btnEdit" runat="server" ImageUrl="Images/edit.gif" OnClientClick='<%# String.Format("openConfirmationWindow(""{0}"",""{1}"",""{2}"",""{3}"",""{4}"",""{5}""); return false;", Eval("ResourceName"), Eval("ID"), Eval("CM_ID"), Eval("CONTACT_DETAILS"), Eval("EM_SKILLS"), Eval("EM_AREAS")) %>'/>    
                                                          <asp:ImageButton ID="btnDelete" runat="server" OnClientClick='<%# String.Format("return confirm(""Are you sure you want to delete {0}?"");", Eval("ResourceName")) %>' CommandName="DeleteEM" CommandArgument='<%# String.Format("{0}", Eval("ID")) %>' ImageUrl="Images/deleteicon.png" />   
                                                      </ItemTemplate>          
                                                    <FilterTemplate>
                                                    </FilterTemplate>            
                                                </telerik:GridTemplateColumn>
                                                <telerik:GridBoundColumn DataField="ResourceName" HeaderText="Resource Name" UniqueName="ResourceName"
                                                    ColumnGroupName="GeneralInformation">
                                                    <HeaderStyle Width="120px" />
                                                </telerik:GridBoundColumn>
                                                <telerik:GridBoundColumn DataField="Contact_Details" HeaderText="Additional Contact Details" UniqueName="Contact_Details" ColumnGroupName="GeneralInformation">
                                                </telerik:GridBoundColumn>
                                                <telerik:GridBoundColumn DataField="GeoKey" HeaderText="Geography" UniqueName="GeoKey" ColumnGroupName="Location">
                                                    <HeaderStyle Width="100px" />
                                                        <FilterTemplate>
                                                            <telerik:RadComboBox ID="GeographyCombo" runat="server" Height="200px" Width="95px" SelectedValue='<%# CType(Container, GridItem).OwnerTableView.GetColumn("GeoKey").CurrentFilterValue %>'
                                                                OnClientSelectedIndexChanged="GeographyComboIndexChanged" >
                                                                <Items>
                                                                    <telerik:RadComboBoxItem Text="All" Value="" />
                                                                    <telerik:RadComboBoxItem Text="AMER" Value="AMER" />
                                                                    <telerik:RadComboBoxItem Text="APAC" Value="APAC" />
                                                                    <telerik:RadComboBoxItem Text="AMEA" Value="AMEA" />
                                                                    <telerik:RadComboBoxItem Text="USPS" Value="USPS" />
                                                                    <telerik:RadComboBoxItem Text="Unassigned" Value="UNASSIGNED" />
                                                                </Items>
                                                            </telerik:RadComboBox>
                                                            <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">
                                                                <script type="text/javascript">
                                                                    function GeographyComboIndexChanged(sender, args) {
                                                                        var tableView = $find("<%# CType(Container, GridItem).OwnerTableView.ClientID %>");
                                                                        tableView.filter("GeoKey", args.get_item().get_value(), "EqualTo");
                                                                    }
                                                                </script>
                                                            </telerik:RadScriptBlock>
                                                            
                                                        </FilterTemplate>
                                                </telerik:GridBoundColumn>
                                                <telerik:GridBoundColumn DataField="Area_Title" HeaderText="Area" UniqueName="Area_Title"
                                                    ColumnGroupName="Location">
                                                </telerik:GridBoundColumn>
                                                <telerik:GridBoundColumn DataField="Office_Name" HeaderText="Office" UniqueName="Office_Name"
                                                    ColumnGroupName="Location" FilterControlWidth="60px">
                                                    <HeaderStyle Width="115px" />                                                            
                                                </telerik:GridBoundColumn>
                                            </Columns>
                                            <PagerStyle PageSizes="5,10,15" PagerTextFormat="{4}<strong>{5}</strong> EMs matching your search criteria"
                                                PageSizeLabelText="EMs per page:" />
                                        </MasterTableView>
                                    </telerik:RadGrid>
                                    </td>
                                </tr>
                            </table>
                        </div>                        
                    </td>
                </tr>
            </table>

Hello Telerik Team,

I would like to inquire regarding the issue I'm currently encountering in RadUpload. I already deployed my website in IIS and I (single user) was able to see the progress bar whenever I click the button, but when multiple users access the site they where not able to see the progress bar. Are there any solutions for this? Thanks! 

I am using RadSpell in my application and it was working fine before 2 days but today I have updated my telerik (2015).
After update telerik Add Custom option is not working in rad spell. I have also check on your site that is not working. 
http://demos.telerik.com/aspnet-ajax/spell/examples/overview/defaultcs.aspx
please help me as soon as possible.

I have a RadListView with a RadDataPager (see below). Every time a user hits "FirstPrev"
 button the OnPageIndexChanged  event fires three times.

Why is this happening and how do I prevent it?

I'm having a problem with the telerik:radscheduler control. I have a calendar with three appointments on it (Tuesday 12:30-1:30, Wednesday 7-4, Thursday 12:30-1:30 named ctl00_MainContent_Scheduler_1_0,ctl00_MainContent_Scheduler_0_0, ctl00_MainContent_Scheduler_2_0 respectively).

If you open or move any of the events, the only appointment that is effected is the Wednesday (ctl00_MainContent_Scheduler_0_0) appointment that is affected. If you move the Thursday event up a week, the Wednesday event is the one that's moved. Same with Tuesday, effect Wednesday. If you open any of the events for details, the Wednesday events details are populated.

I've walked the code and confirmed that the datasource is populating everything correctly.

Here's my code:

The control itself
    <telerik:RadScheduler runat="server" ID="Scheduler" SelectedView="MonthView" DayStartTime="07:00:00" DayEndTime="21:00:00"
        FirstDayOfWeek="Monday" LastDayOfWeek="Friday" AllowInsert="False" AllowDelete="False" DataKeyField="MyID" DataSubjectField="MyName"
        DataStartField="MyDate" DataEndField="MyDateEnd" OnNavigationCommand="Scheduler_OnNavigationCommand" RowHeight="50px"
        Height="100%" CustomAttributeNames="MyOtherName, MyString, MyInfo, MyLocation,TimeZoneMessage,Type,MyPlace,MyReason,MyDate, MyDateEnd" OnAppointmentDataBound="Scheduler_OnAppointmentDataBound">
        <AppointmentTemplate>
            <div>
                <%# Eval("Subject") %>
            </div>
            <div>
            <%# Eval("MyName") %>  <%# Eval("MyString") %> 
                </div>
            <%# Eval("MyInfo") %>
        </AppointmentTemplate>
        <AdvancedForm Modal="True" />
        <AdvancedEditTemplate>
            <scheduler:AdvancedForm runat="server" ID="AdvancedForm" Mode="Edit" Subject='<%# Bind("Subject") %>'
                Start='<%# Bind("Start") %>' End='<%# Bind("End") %>' MyName='<%# Bind("MyName") %>'
                MyString='<%# Bind("MyString") %>' MyInfo='<%# Bind("MyInfo") %>' Location='<%# Bind("Location") %>'
                TimeZoneMessage='<%# Bind("TimeZoneMessage") %>' Type='<%# Bind("Type") %>' MyPlace='<%# Bind("MyPlace") %>' MyReason='<%# Bind("MyReason") %>'/>
        </AdvancedEditTemplate>
    </telerik:RadScheduler>


In the AdvancedFormTemplate.ascx.cs:

        protected Appointment Appointment
        {
            get
            {
                SchedulerFormContainer container = (SchedulerFormContainer)BindingContainer;
                return container.Appointment;
            }
        }

container.Appointment always contains the Wednesday control, even if you click on the other two.

Code behind to populate:


            Scheduler.DataSource = items;
            Scheduler.DataBind();

I've verified items contains exactly what I expect (3 separate and correct events).

When the calendar month displays, the 3 appointments each display the correct information. It's almost like they load correctly but the appointment events are tied to the Wednesday appointment handlers.

Anyone have a clue for this?

Hi,

I am using telerik rad grid (v. 2014).
When I try to resize columns I get an unexpected result (attached screen shot) - there is a white space at the right side.

Is there any way that the grid will automatically use all the width?

Thanks 

Hi All,

          we are using RadScheduler as a Calendar control. and we have a requirement of creating an Event spanning multiple days.
          ex: StartDate 02-Feb-2015 and EndDate 06-Feb-2015.
 
          and we want the Event Name to be shown spanning these 5 days( rather It should be covering all these 5 days).
          But in the current situation it is showning event on 2nd Feb and 6 Feb.
 
          is there any CSS class or property to be added to achieve this.

          Thanks!!

Regards,
Charan

Hi.
I try to use RadClientExportManager witch OpenStreetMaps control. When I plot *.gpx file on the map ClientExportManager have a problem with export to pdf or png those lines.
I dont have controls on the map after exoprt too.
See attachat pictures.
Capture1 - oryginal
Capture 2 - exported

Krzysztof

I am seeing an intermittent problem where users are getting the exception above when RadListView perfoms a DataBind. I am not sure how it can happen, because my code creates a data table and assigns it to the RadListView. Even if it failed to add anything to the data table, it wouldn't cause an exception. Could this be caused by one of the controls in the template?

Here's the stack trace:
ERROR=Cannot perform this operation when DataSource is not assigned. STACK TRACE= 
at Telerik.Web.UI.ListViewNullEnumerable.get_DataSourceCount() 
at Telerik.Web.UI.RadListView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) 
at Telerik.Web.UI.RadListView.PerformDataBinding(IEnumerable data) 
at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) 
at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) 
at System.Web.UI.WebControls.DataBoundControl.PerformSelect() at Telerik.Web.UI.RadListView.PerformSelect() 
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind() at Telerik.Web.UI.RadListView.DataBind() 
<my code..>

Here's the HTML:


The CodeBehind looks like this: