How to hanlde key board tab event for Tab Control in silverlight 4

Question

Hi,

  I have tab control with four tabs.When ever a user hit the key board "Tab" button from the last control in tab1 it should redirect to second tab with first control focused. Again if i continued hitting "Tab"  button it has to set focus to next control of the Current Tab. I tried with last control KeyDown event  and TabIndex Selection Change event but it is not working.

Please help,


Thanks,
Vijay