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• mohit - Mar 20 2008 | asp.net, development, c#, validation, .net, programming

  The problem with calling Validate in Page_Load is that your controls may not be ready to be validated (i.e. they need to be Loaded before they are ready to be validated).

  Quoted: One potentially confusing thing about this timing is that the validators will not have been evaluated at the time Page_Load is triggered. The benefit of this is that it gives you a chance to programmatically change property values affecting the validity of the page, such as enabling or disabling certain validators.
  ...
  If this timing is not to your liking and you prefer to evaluate everything in Page_Load, you can do this by explicitly triggering the validation during this event by calling Page.Validate.