I just updated the Ajax toolkit for asp.net to 4.1.7.725, and now my tab containers do not render.
I get this errror - Uncaught TypeError: Cannot read property 'UI' of undefined
Using chrome debugger, I found the error occurred in this line - $create(Sys.Extended.UI.TabPanel,{"headerTab":$get("__tab_ctl00_ContentPlaceHolder1_TabContainer2_p2"),"ownerID":"ctl00_ContentPlaceHolder1_TabContainer2","wasLoadedOnce":false},null,{"owner":"ctl00_ContentPlaceHolder1_TabContainer2"},$get("ctl00_ContentPlaceHolder1_TabContainer2_p2"));
Can anyone help ?