I\'m using more than one TabContainer on a page in an ASP.NET project and I noticed a really strange behavior: when the page is loaded the focus jumps to the last TabContain
I had a similar problem, but I found a more simple solution.
In the case you use a:
and more panel in the tab container ( 3 for example):
For example, you can use the property:
ActiveTabIndex="0"
OR
tc1.ActiveTabIndex = 2 'code behind
Where the integer is the ID of the tab you want to Focus.
It works for me! I Hope I can Help someone!
Enjoy