I have a page based of the "Scotts to do list" tutorial(using adjax). Within this program I tried to use a trigger to update a update pannel.
<asp:AsyncPostBackTrigger runat="server" EventName="SelectedIndexChanger" ControlID="DropDownList1" />
But visual Web developer 2008 express says "Element triggers is not supported"
I have enabled 3.5 in visual studio.