ASP.NET in a Nutshell

Name

HttpCacheValidateHandler

Synopsis

A function with this signature can be used for the AddValidationCallback() method of the HttpCachePolicy class. Using this signature gives you the opportunity to check other dependencies that a cached page may have and either allow the page to be served or invalidate it and require the page to be recompiled. To invalidate a page, set the validationStatus parameter to HttpValidationStatus.Invalid.

Public Delegate Sub HttpCacheValidateHandler(
        ByVal context As HttpContext, ByVal data As Object, 
        ByRef validationStatus As HttpValidationStatus)