HttpCacheValidateHandler Delegate

 

Represents a method that is called to validate a cached item before the item is served from the cache.

Namespace:   System.Web
Assembly:  System.Web (in System.Web.dll)

type HttpCacheValidateHandler = 
    delegate of 
        context:HttpContext *
        data:Object *
        validationStatus:HttpValidationStatus byref -> unit

Parameters

context
Type: System.Web.HttpContext

The HttpContext object containing information about the current request.

data
Type: System.Object

User-supplied data used to validate the cached item.

validationStatus
Type: System.Web.HttpValidationStatus

An HttpValidationStatus enumeration value. Your delegate should set this value to indicate the result of the validation.

If a cached item is invalidated within the scope of the HttpCacheValidateHandler method, it is evicted from the cache and the request for the item is treated as a cache miss.

The following code example demonstrates how to add a new cache validation delegate to an application.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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