Validating a field based on value of another field

[Emmanuel]

Hi,

I have a webform with some input controls in it. Some of these controls have
validation controls assigned. So far so good. I would like to have a
validator which validates a field only if the value of another field is a
particular value.

Lets say i have a country field and a state field, i want to validate that
the state field contains a value when the country field is 'US', for
example.

any help?

 

[Karl Seguin]

Use the CustomValidator and write your own logic.

There's a good example here:
http://aspnet.4guysfromrolla.com/articles/073102-1.aspx

which shows how to implement both client-side and server-side functions with
the CustomValidator.

Karl