Is there any way to use a required field validator to validate a hidden form field? I've tried using a textbox with it's visibility set to false, but the validator doesn't work. I've also tried setting the control to validate to a regular HTML hidden field but an error is returned. I'm sure I can do regular javascript validation, but I'd like to utilize the required field validator.

Hello,

No, you can't use one of the Server Validator controls for a hidden field. Either write server-based code to do that for you, or javascript.

Brian