Radgrid Filtering Problem

[Lokesh]

Hi Team,
I have a radgrid with template columns in it.
When I try to apply filter on the ttemplate column it gives me the strange error.
I tried a lot to get the solution but couldn't find...     :(
Please help me at this..

This is what I have on aspx :

<telerik:RadGrid ID="rgProjectBudget" runat="server" AllowFilteringByColumn="true" AllowMultiRowSelection="true" AllowPaging="true"
                                            OnNeedDataSource="rgProjectBudget_NeedDataSource" OnDeleteCommand="rgProjectBudget_DeleteCommand" PageSize="50"
                                            OnItemDataBound="rgProjectBudget_ItemDataBound" OnPreRender="rgProjectBudget_PreRender" PagerStyle-AlwaysVisible="true" >
                                            <ClientSettings  Selecting-AllowRowSelect="true">
                                                <ClientEvents OnRowSelected="RowSelected" />
                                            </ClientSettings>
                                    <MasterTableView EditMode="InPlace">
                                    <Columns>
                                        <telerik:GridBoundColumn DataField="COABudgetDetailID" DataType="System.Int32"
                                                                HeaderText="COABudgetDetailID" Display="false"
                                                                UniqueName="COABudgetDetailID" AutoPostBackOnFilter="true">
                                        </telerik:GridBoundColumn>
<telerik:GridTemplateColumn HeaderText="Project Budget" UniqueName="SecondaryEntityBudget"
                                                                    CurrentFilterFunction="Contains" AllowFiltering="true" AutoPostBackOnFilter="true">
                                                                    <ItemStyle Width="20%" />
                                            <ItemTemplate>
                                               <asp:TextBox ID="txtBudgetAmount" runat="server" Width="70px"
                                                        Text='<%# DataBinder.Eval(Container,"DataItem.SecondaryEntityBudget") %>' />
                                            </ItemTemplate>
                                        </telerik:GridTemplateColumn>
                                        <telerik:GridBoundColumn UniqueName="COAActualAmount" HeaderText="Actual Amount" DataField="COAActualAmount"
                                                                 CurrentFilterFunction="EqualTo" AllowFiltering="true" DataType="System.Double" FilterControlWidth="30%"
                                                                 AutoPostBackOnFilter="true">
                                            <HeaderStyle Width="10%" HorizontalAlign="Left" />
                                            <ItemStyle  Width="10%" HorizontalAlign="Left" />
                                        </telerik:GridBoundColumn>

I want to apply filter on SecondaryEntityBudget column.
I have attached the image file of the error that I am getting.
Please help me guys...   :(

Regards,
Lok..

[Iana Tsolova]

Hello Lokesh,

Try setting the DataField property of the GridTemplateColumn. Find more information in the below article:
http://www.telerik.com/help/aspnet-ajax/grid-implementing-filtering-for-gridtemplatecolumns.html

All the best,
Iana
the Telerik team