SetOmitVaryStar Method

HttpCachePolicy.SetOmitVaryStar Method

Specifies whether the response should contain the vary:* header when varying by parameters.

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

public void SetOmitVaryStar (
	bool omit
public void SetOmitVaryStar (
	boolean omit
public function SetOmitVaryStar (
	omit : boolean
Not applicable.



true to direct the HttpCachePolicy to not use the * value for its VaryByHeaders property; otherwise, false.

This method allows you to prevent the output ached from adding a vary:* header to the outgoing response when the cached response varies by parameter. This is useful for clients varying caching by query string because most clients will automatically vary by query string without requiring the vary:* header.


The use of the vary:* header can disable all client caching.

This is a convenience method to affect the VaryByHeaders property. Passing true to the method directs the HttpCachePolicy to ignore the * value for the VaryByHeaders property.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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