A user control contains a tabcontainer. When aspx page loads, the user control is not visible. Ajax toolkit script function tries to set focus on tabcontainer and it throws exception : "Can't move focus to the control because it is invisible, not enabled, or of a type that does not accept the focus."
The problem occurs in IE 8 with 11/16/2011 release. It worked OK with sept. release.
Comments: Hello, 2014-09-22 this issue is still exists; I develop now an Intranet using Ajax release 4.1.x and I encounter same error. As a person from here highlight, in corporate environment they WILL NOT upgrade IE8, therefore new solutions will have to be w.o. this control.
The problem occurs in IE 8 with 11/16/2011 release. It worked OK with sept. release.
Comments: Hello, 2014-09-22 this issue is still exists; I develop now an Intranet using Ajax release 4.1.x and I encounter same error. As a person from here highlight, in corporate environment they WILL NOT upgrade IE8, therefore new solutions will have to be w.o. this control.