[Solved] Need help to run basic filtering in grid

[Zeeshan fawad]

Hi,
I have applied Basic filtering in the grid but it is showing error message

'Telerik.Web.UI.ParseException: Expression expected' when out of ajax panel and
when inside ajax panel , it shows the error in javascript error.

here is my grid , note that i have grids in my other screens which are working fine in filtering.

 <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" >

    <telerik:RadGrid ID="GrdUsers" runat="server" AutoGenerateColumns="False" GridLines="Vertical"
        AllowFilteringByColumn="True" AllowPaging="True" OnItemDataBound="GrdUsers_ItemDataBound"
         OnNeedDataSource="GrdUsers_NeedDataSource"
         Width="100%" >
        <PagerStyle Mode="Advanced" Position="TopAndBottom"></PagerStyle>
        <HeaderContextMenu>
            <CollapseAnimation Type="OutQuint"></CollapseAnimation>
        </HeaderContextMenu>
        <MasterTableView  AllowFilteringByColumn="True" DataKeyNames="EmailAddress">
            <Columns>
                <telerik:GridTemplateColumn HeaderText="Email" UniqueName="column1" AllowFiltering="true"
                    FilterControlWidth="135px">
                    <ItemTemplate>
                        <asp:hyperlink id="hlnkEmailAddress" runat="server" text='<%# DataBinder.Eval(Container, "DataItem.EmailAddress") %>'
                            navigateurl='<%# DataBinder.Eval(Container, "DataItem.EmailAddress", "Details.aspx?em={0}") %>'
                            enableviewstate="False" target="_blank">
                        </asp:hyperlink>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" HorizontalAlign="Left" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn FilterControlWidth="55px" HeaderText="User Name" UniqueName="column2"
                    AllowFiltering="true">
                    <ItemTemplate>
                        <asp:label id="lblUserName" runat="server" text='<%# Eval("UserName").ToString() %>'>
                        </asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" HorizontalAlign="Left" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn FilterControlWidth="55px" HeaderText="Package" UniqueName="column3"
                    AllowFiltering="true">
                    <ItemTemplate>
                        <a href="#">
                            <asp:label id="lblPackage" runat="server" text='<%# GetPackage(Eval("EmailAddress").ToString()) %>'
                                tooltip="Click to view package detail"></asp:label>
                        </a>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" HorizontalAlign="Left" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn HeaderText="Registration Date" UniqueName="column4" AllowFiltering="true">
                    <ItemTemplate>
                        <asp:label id="lblRegistrationDate" runat="server" text='<%# Eval("RegistrationDate") %>'>
                        </asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn FilterControlWidth="55px" HeaderText="Sig Count / Limit"
                    UniqueName="column5" AllowFiltering="true">
                    <ItemTemplate>
                        <asp:label id="lblSigLimit" runat="server"><%# Eval("SignatureUsed") %> / <%# GetSum(Convert.ToInt64(Eval("SignatureUsed")), Convert.ToInt64(Eval("RemainSignatureLeft")))%> </asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn FilterControlWidth="55px" HeaderText="Account Size / Limit"
                    UniqueName="column6" AllowFiltering="true">
                    <ItemTemplate>
                        <asp:label id="lblAccountLimit" runat="server"><%# Convert.ToInt64(Eval("SpaceLimitUsed"))/1024%> / <%# GetSum(Convert.ToInt64(Eval("SpaceLimitUsed")), Convert.ToInt64(Eval("RemainBalanceLeft")))/1024%> </asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn HeaderText="Enterprise / Admin" UniqueName="column7"
                    AllowFiltering="true" FilterControlWidth="165px">
                    <ItemTemplate>
                        <asp:label id="lblEnt" runat="server"></asp:label>
                        <asp:label id="lblParentUserEmailAddress" runat="server" text='<%# Eval("ParentUserEmailAddress")%> '>
                        </asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" HorizontalAlign="Left" />
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn FilterControlWidth="35px" HeaderText="Status" UniqueName="column8"
                    AllowFiltering="true" Visible="false">
                    <ItemTemplate>
                        <asp:label id="lblStatus" runat="server" text='<%# Eval("status")%>'></asp:label>
                        <asp:label id="lblUsertypeId" runat="server" text='<%# Eval("UserTypeId")%>'></asp:label>
                    </ItemTemplate>
                    <ItemStyle CssClass="smallText8" />
                </telerik:GridTemplateColumn>
            </Columns>
             <RowIndicatorColumn>
                                <HeaderStyle Width="20px"></HeaderStyle>
                            </RowIndicatorColumn>
                            <ExpandCollapseColumn>
                                <HeaderStyle Width="20px"></HeaderStyle>
                            </ExpandCollapseColumn>
        </MasterTableView>
        <FilterMenu>
            <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
        </FilterMenu>
    </telerik:RadGrid>
    </telerik:RadAjaxPanel>

Here is my c# code.

        if (!IsPostBack)
        {
      //      lstUsers = objUserMgr.GetAllUsers();
       //     lblTotal.Text = "Total Users : " + lstUsers.Count;
            try { }
            catch (Exception ex)
            {
                Response.Write(ex.Message.ToString());

            }


        }
    }

    protected void GrdUsers_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
    {
           UserManager objUserMgr = new UserManager();
           GrdUsers.DataSource = objUserMgr.GetAllUsers();

    }

Please reply me asap, why this error is coming on fiter some data in the grid.
Regards
Muhammad Shoaib

[Zeeshan fawad]

Also one thing more, my html tags for telerik controls has been converted to small fonts and have green lines inside them , say

'this element is not available in the current context' on focussed. Tell me why this is happening in my aspx files?

Regards
Muhammad Shoaib

[Yavor]

Hi Zeeshan,

Can you please set the EnableLinqExpressions for the control to false, and see if the issue persists.
If this does not eliminate the problem, you can open a formal support ticket, and send us the problematic code, so that we can review it locally.

Greetings,
Yavor
the Telerik team

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