System.Web Namespace   HttpCachePolicy Class

---

Sets the Vary HTTP header to the specified text string.

[ VB ]
Public Sub SetVaryByCustom ( _
   ByVal custom As String _
)

[ C# ]
public void SetVaryByCustom (
   string custom
);

[ C++ ]
public: void SetVaryByCustom (
   String* custom
);

[ JScript ]
public function SetVaryByCustom (
   custom : String
);

custom

The text to set the Vary header to.

Exception Type	Condition
ArgumentNullException	Occurs when custom is a null reference ( Nothing in Visual Basic ).
InvalidOperationException	Occurs when SetVaryByCustom has already been set.

The following example sets the Vary header to the string "Accept-Charset" to notify the origin-server's cache to choose one of several cached responses depending on the browser's Accept-Charset header.

[ VB ]
Response.Cache.SetVaryByCustom ( "Accept-Charset" )

[ C# ]
Response.Cache.SetVaryByCustom ( "Accept-Charset" );

[ JScript ] 
Response.Cache.SetVaryByCustom ( "Accept-Charset" )

HttpCachePolicy Members   Caching Multiple Versions of a Page

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