Custom validation

Topics: Validation Application Block
Apr 7, 2008 at 12:34 PM
hello,

Just starting out with validation application block and was not sure on which validator to use. My situation is this, I have radio with 3 options. Under the radio i have textbox. What i am trying to validate is that if user selects any one option on the radio then they must fill in the text box. How would i do this?

Thanks

Ismail