I have a Master / Detail pages project and uses UpdatePanel to avoid the "flickering" of the screen when changing detail pages. This works very fine. When I apply a ToolkitScriptManager to the Master page then the whole project starts to "flicker" when I change Detail pages or just click on a Button on a Detail page. If I remove the ToolkitScriptManager and use the standard ScriptManager then the project crach with the following error codes:
0x800a138f - JavaScript runtime error: Unable to get property 'UI' of undefined or null reference
$create(Sys.Extended.UI.CalendarBehavior, {"button":$get("ContentPlaceHolder1_cmdCalendar"),"id":"ContentPlaceHolder1_ajxCalendarExtender1"}, null, null, $get("ContentPlaceHolder1_txtNoteBookDate"));
I use Visual Studio 2013 with the version 4.5.7.1005 of AjaxControlToolkit located in the bin folder. I have explored most of the suggestions on the Forum but no one gets close to solve the problem. What to do? Is there a problem with the ToolkitScriptManager and I just have to wait for a new release?
Lennart Hoglund