I am using a WebHierarchicalDataGrid with a WebHierarchicalDataSource with three levels. We use it on a web application, with Infragistics2. Currently, when I run the page, I get this error:
Microsoft JScript runtime error: Sys.InvalidOperationException: A control is already associated with the element.
Does this look familiar?
Thanks for your help,
Terrance
Hello TerrancePlease try: <asp:AjaxScriptManager ID="AjaxScriptManager1" runat="server" ScriptMode="Release">And let me know if it helped.