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 in version 4.5.7.0607 of Ajax Control Toolkit with a ToolkitScriptManager in the Master page. However, when I upgrad to versionor 4.5.7.1005 or 4.5.7.1213 the whole project starts to "flicker" when I change to a 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. 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 do I just have to wait for a new release?
Lennart Hoglund
Comments: It seems that this error is caused by ToolkitScriptManager. Starting with the v15.1 release, we have removed it. So now, this problem is resolved. Please refer to the following article to get additional information about upgrading your existing project to the latest version of ASP.NET AJAX Control Toolkit: [Upgrade guide](https://ajaxcontroltoolkit.codeplex.com/wikipage?title=Upgrade%20your%20project%20to%20AjaxControlToolkit%20v15.1)
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. 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 do I just have to wait for a new release?
Lennart Hoglund
Comments: It seems that this error is caused by ToolkitScriptManager. Starting with the v15.1 release, we have removed it. So now, this problem is resolved. Please refer to the following article to get additional information about upgrading your existing project to the latest version of ASP.NET AJAX Control Toolkit: [Upgrade guide](https://ajaxcontroltoolkit.codeplex.com/wikipage?title=Upgrade%20your%20project%20to%20AjaxControlToolkit%20v15.1)