or
<telerik:GridDropDownColumn DataField="Status_ID" DataSourceID="SqlDataSource_WTGTasksStatus" HeaderText="Status" ListTextField="Status_Text" ListValueField="Status_ID" UniqueName="Status_ID" ColumnEditorID="StatusDropdownEditor">
Here is my Column Editor:
<telerik:GridDropDownListColumnEditor ID="StatusDropdownEditor" DropDownStyle-Width="75px" runat="server" /><asp:SqlDataSource ID="SqlDataSource_WTGTasksStatus" runat="server" ConnectionString="<%$ ConnectionStrings:ParkAnalyticsConnectionString %>" SelectCommand="SELECT [Status_ID], [Status_Text] FROM [WTGTasksStatus]"> </asp:SqlDataSource><telerik:RadGrid ID="DisplayDataGrid" runat="server" AutoGenerateColumns="False" AllowMultiRowSelection="True" AllowSorting="True" AllowPaging="True" PageSize="6" OnNeedDataSource="Grid_NeedDataSource" OnItemCreated="ImageryGrid_ItemCreated" ShowStatusBar="true" Width="100%" GridLines="None" Skin="Hay" ItemStyle-Font-Size="7pt" AlternatingItemStyle-Font-Size="7pt"> <ClientSettings EnableRowHoverStyle="true"> <Scrolling AllowScroll="True" ScrollHeight="230px" UseStaticHeaders="false" /> <Selecting AllowRowSelect="true" /> </ClientSettings> <ExportSettings IgnorePaging="true" OpenInNewWindow="true" FileName="ImageryExcel" ExportOnlyData="true" /> <MasterTableView HeaderStyle-Wrap="false" TableLayout="Fixed"> <PagerStyle AlwaysVisible="True" FirstPageToolTip="" LastPageToolTip="" NextPagesToolTip="" PrevPagesToolTip="" PrevPageToolTip="" NextPageToolTip="" /> </MasterTableView> </telerik:RadGrid>Public Sub ButtonExcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ButtonExcelIMG.Click AssignGridDataSource() DisplayDataGrid.DataBind() DisplayDataGrid.MasterTableView.Columns.FindByUniqueName("ClientSelectColumn").Visible = False DisplayDataGrid.ExportSettings.ExportOnlyData = True DisplayDataGrid.ExportSettings.OpenInNewWindow = True If DisplayDataGrid.SelectedItems.Count > 0 Then For Each dataItem As GridDataItem In DisplayDataGrid.MasterTableView.Items ' If dataItem.Selected Then ' DisplayDataGrid.MasterTableView. ' End If dataItem.Visible = dataItem.Selected dataItem.Enabled = dataItem.Selected dataItem.Display = dataItem.Selected Next End If 'Export to Excel DisplayDataGrid.MasterTableView.ExportToExcel() End SubDisplayDataGrid.Columns.Clear()Dim tcolumn As GridHyperLinkColumn = New GridHyperLinkColumnDim clientGrid As GridClientSelectColumn = New GridClientSelectColumn' CheckboxclientGrid.UniqueName = "ClientSelectColumn"clientGrid.HeaderStyle.Width = Unit.Pixel(25)clientGrid.ItemStyle.ForeColor = Color.RoyalBlueclientGrid.ItemStyle.HorizontalAlign = HorizontalAlign.CenterclientGrid.ItemStyle.Width = Unit.Pixel(25)DisplayDataGrid.Columns.Add(clientGrid)