I have a panel, controls in the panel..these controls validated with a validation group.
This panel will show / hide when a dropdown box changes.
Question is...i want to validate all the controls with validation group in the panel
how to write the code
 
                        
You define
validationgroup="Test"on your validators , and you define also thisvalidationgroup="Test"on your Button.Sample
Nota : Gets or sets the name of the validation group to which this validation control belongs.