sometimes ...
I have a ListBox and I change the ItnesSource and set the Visiblity on / off and then, sometimes, i got a exception in :
ListBox_listBoxItem_Click
in Windows and JavaScript and under JavaScript I see that "this._itemsToDataTemplatedRenderedElement" is undefined ...
Under Windows I got a "System.Collections.Generic.KeyNotFoundException" ...
The ItemsTemplate is a Button ...
Regards,
Uwe