attach regularexpressionvalidator to a textbox base on dropdownlist selected item?

[rockdale]

Hi, all

Is there a way to dynamically attach a regularexpressionvalidator to a
textbox base on dropdownlist selected item?

Let's say I have a dropdownlist list all contact type - phone, cell,
email ...etc and a textbox that allow user to type in their contact
info. When they choose email, I want attach the
regularexpressionvalidator of email to the textbox, when the ddl
selected phone, then I want attach phone regExp to the same textbox.

Any help will be appreciated

thanks
-rockdale

[Andy]

I've done this, however, the regular expression validator has to be in
the same container as the listbox is to work. I don't have the code
for this as I've replaced all my validators with custom validators and
have moved the page validation to a single central errorchecking method
in my code behind.

But, it should just be a matter of specifying the control name of the
listbox to validate in the validator property sheet and selecting one
of the Microsoft regular expression templates for the regular
expression.