System.Web Namespace   HttpCachePolicy Class

---

Sets the ETag HTTP header to the specified string.

[ VB ]
Public Sub SetETag ( _
   ByVal etag As String _
)

[ C# ]
public void SetETag (
   string etag
);

[ C++ ]
public: void SetETag (
   String* etag
);

[ JScript ]
public function SetETag (
   etag : String
);

etag

The text to use for the ETag header.

Exception Type	Condition
ArgumentNullException	Occurs when etag is a null reference ( Nothing in Visual Basic ).
InvalidOperationException	Occurs when the ETag header has already been set.
InvalidOperationException	Occurs when SetETagFromFileDependencies has already been called.

The ETag header is a unique identifier for a specific version of a document. Once an ETag header is set, subsequent attempts to set it will fail and an exception will be thrown.

The following example sets the ETag header to a custom value.

[ VB ]
Response.Cache.SetETag ( "50f59e42f4d8bc1:cd7" )

[ C# ]
Response.Cache.SetETag ( "50f59e42f4d8bc1:cd7" );

[ JScript ] 
Response.Cache.SetETag ( "50f59e42f4d8bc1:cd7" )

HttpCachePolicy Members   Caching ASP.NET Pages

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