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System.Web (system.web.dll)delegate

A function with this signature can be used for the AddValidationCallback( ) method of the HttpCachePolicy class. Using this method 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 void HttpCacheValidateHandler(HttpContext context, object data, 
        ref HttpValidationStatus validationStatus);

Passed To

HttpCachePolicy.AddValidationCallback( )

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