The CompareValidator Control
The next validator control we'll be talking about is the CompareValidator control. The CompareValidator differs from the previous validator controls because it enables you to compare the value entered by the user with another value. The other value can be that of either another control or a constant value. For instance, if you have a site that has membership that is password controlled during user registration, it is customary to have the user enter their password twice to lessen the chance of entering it incorrectly. You could use the CompareValidator and quickly wire the two Password TextBox controls together to ensure the same value was entered into both.
You can use a couple different attributes to wire up controls ...
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