This may be easy, but I must be overlooking the obvious.
I have two command buttons on the web form, with 4 textbox's.
When I click the first button, I submit the values of the first two textbox's. When I click the second button, I submit the values of the last two textbox's.

Here's the problem. I'm using required field validators and I need each button to only validate its related two textbox's, where now I checks all controls on the form. Any ideas?