From: Alan T on
VWD 2010 Express.
Anyone has downloaded this Ajax Control Toolkit for .NET 4.0?

I put a tabcontainer and added 2 tabpanels.
Drag and drop a radionbutton on one of the tabpanels.
Browse another tabpanel and back to the first tabpanel, the radiobutton
disappeared.
Look at the sourc code, it was not there.
I also tried radiobutton list as well, it happened the same.
Also tried other controls like TextBox, no luck.