How to add control to FilterTemplate

[Jadesada]

I have code like this

<Columns>
                        <telerik:GridBoundColumn DataField="TaskID" HeaderText="taskID"
                           UniqueName="TaskID" Visible="False">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="TaskName" HeaderText="ชื่องาน"
                           UniqueName="TaskName">
                            <FilterTemplate>
                                <telerik:RadComboBox ID="RadComboBox1" Runat="server"
                                    ShowToggleImage="False" Skin="Vista" AutoPostBack="True"
                                    MarkFirstMatch="True" EnableLoadOnDemand="true"
                                    onitemsrequested="RadComboBox1_ItemsRequested"
                                    onselectedindexchanged="RadComboBox1_SelectedIndexChanged">
                                </telerik:RadComboBox>
                            </FilterTemplate>
                        </telerik:GridBoundColumn>
                        <telerik:GridEditCommandColumn>
                        </telerik:GridEditCommandColumn>
                        <telerik:GridButtonColumn CommandName="Delete"
                            ConfirmText="Do you want to delete this item?" ConfirmTitle="Delete"
                            Text="Delete" UniqueName="column1">
                        </telerik:GridButtonColumn>
                    </Columns>

In this code I add "RadComboBox1" to FilterTemplate on GridBoundColumn name "ชื่องาน" on Design page on aspx

but I don't want to add this control like this. I want to add this control using Code Behind help me please.

[Veli]

Hello Jadesada,

You use RadGrid's ItemCreated event for that:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    if(e.Item is GridFilteringItem)
    {
        GridFilterItem filterItem =(GridFilteringItem)e.Item;
        TableCell filterCell = filterItem["TaskName"];
        //add controsl programmatically to filterCell.Controls
    }
}

Veli
the Telerik team

[Jadesada]

I use your solution but it's show error message "Cannot find a cell bound to column name 'TaskName'"

What can I do sir.

[Veli]

What is the UniqueName of your column with the FilterTemplate? You need to use that name.

Veli
the Telerik team

[Jadesada]

Thanks I get it :)