I'm having issues running RadScriptManager on a page that's uisng the RadGridView. If I use the regular ScriptManager I get javascript errors and the GridView does not let you select rows. If I switch to the RadGridView I get this:
Object reference not set to an instance of an object.
[NullReferenceException: Object reference not set to an instance of an object.]
Telerik.RadMenuUtils.RadControl.GetUpdatingUpdatePanel(Control target) +101
Telerik.RadMenuUtils.RadControl.IsInAjaxUpdatePanel(Control target) +50
Telerik.RadMenuUtils.RadControl.Page_PreRenderComplete(Object sender, EventArgs e) +21
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Page.OnPreRenderComplete(EventArgs e) +8698542
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1029
Object reference not set to an instance of an object.
[NullReferenceException: Object reference not set to an instance of an object.]
Telerik.RadMenuUtils.RadControl.GetUpdatingUpdatePanel(Control target) +101
Telerik.RadMenuUtils.RadControl.IsInAjaxUpdatePanel(Control target) +50
Telerik.RadMenuUtils.RadControl.Page_PreRenderComplete(Object sender, EventArgs e) +21
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Page.OnPreRenderComplete(EventArgs e) +8698542
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1029