AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll. Izvorna datoteka: http://dostavahrane.si/ScriptResource.axd?d=OdsYNSuXxjlt8rcl-C-veHyjBYioAGFje3gsHih3su6oLU1jX125fdCipsztHIubjtFptWsSrTvzlMvPBfnnMGfz62_ByInZiFjjOCVmrpHz8bozy1q4kx6vPqQyelCTItLxGQ2&t=245582f9
i am using AjaxControlToolkit for .net 3.5 in VS 2008. Why i get this error. Must i downgrade it?
I downlaod it from here: http://www.asp.net/ajaxlibrary/AjaxControlToolkitSampleSite/
I got such error once in one of my projects and since I didn't find a cause, I did what the exception message says - instead of ASP.NET ScriptMessage, I've put Toolkit's Script Manager on the page.
It probably is only a workaround but follow it if you won't find any other solution.