The client captures the validation event of the validation control.

Q:

Hi,

Do u guys know if we can trap in client side when a validation is taking place or when it s finished in client side. I am talking about validation controls like: requiredfieldvalidator, regularexpressionvalidator... etc

More precisely, I need to trap the event when the regularexpressionvalidator succeeds or when it fails, but I want to handle that client side. Is that possible? How please?

Thank you

A:

Hi,

Client-side validation library has a few methods for example validatorvalidate (you can view them with reflector from system. Web. DLL's resources and viewing webuivalidation. JS)

Function validatorvalidate (Val, validationgroup, event ){

// There's some script here

}

1. So with JavaScript basically taking reference to the old validatorvalidate () within a variable

VaR oldvalidatorvalidate = validatorvalidate;

2. creating your own validatorvalidate

Function myvalidatorvalidate (Val, validationgroup, event ){

// First call the original one
Oldvalidatorvalidate (Val, validationgroup, event );

// Here you can check VAL. isvalid-e. g write your logic here, like check for the correct validator etc
Alert (Val. ID + ":" + val. isvalid );

}

3. Set new reference in Javascript

Validatorvalidate = myvalidatorvalidate;

Now when validatorvalidate is called by client-side validation framework, it callyour myvalidatorvalidate method, which delegates the job first to the original method, and then does its logic after the "base" method has done its job.

Http://forums.asp.net/p/1282363/2454378.aspx