How to bind DropdownProvider data(List) by sever side?
By the way,i want to create a Multi-Column WebDropDown as DropdownProvider .
I bind data by OnItemsRequested event,but it didn't worked.
<EditorProviders> <ig:DropDownProvider ID="ddlSOPActionCode" > <EditorControl ID="WebDropDown1" TextField="SOPActionCode" Width="150px" ValueField="SOPActionCode" OnItemsRequested="WebDropDown1_ItemsRequested" runat="server" > <DropDownItemBinding TextField="SOPActionCode" ValueField="SOPActionCode"></DropDownItemBinding> </EditorControl> </ig:DropDownProvider> </EditorProviders> <Behaviors> <ig:EditingCore BatchUpdating="true"> <EditingClientEvents CellValueChanging="uwgSOP_Editing_CellValueChanging" /> <Behaviors> <ig:CellEditing Enabled="true"> <ColumnSettings> <ig:EditingColumnSetting ColumnKey="SOPActionCode" EditorID="ddlSOPActionCode" /> </ColumnSettings> <CellEditingClientEvents EnteringEditMode="uwgSOP_CellEditing_EnteringEditMode"> </CellEditingClientEvents> <EditModeActions EnableOnKeyPress="True" MouseClick="Single" EnableOnActive="true" /> </ig:CellEditing> <ig:RowDeleting Enabled="true" /> <ig:RowAdding Alignment="Top" EditModeActions-EnableOnActive="true" EditModeActions-MouseClick="Single" Enabled="false"> <EditModeActions MouseClick="Single" EnableOnActive="True"></EditModeActions> <AddNewRowClientEvents /> </ig:RowAdding> </Behaviors> </ig:EditingCore> </Behaviors>