VirtualPathProvider.GetCacheDependency Method

Creates a cache dependency based on the specified virtual paths.

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

virtual CacheDependency^ GetCacheDependency (
	String^ virtualPath, 
	IEnumerable^ virtualPathDependencies, 
	DateTime utcStart
public CacheDependency GetCacheDependency (
	String virtualPath, 
	IEnumerable virtualPathDependencies, 
	DateTime utcStart
public function GetCacheDependency (
	virtualPath : String, 
	virtualPathDependencies : IEnumerable, 
	utcStart : DateTime
) : CacheDependency
Not applicable.



The path to the primary virtual resource.


An array of paths to other resources required by the primary virtual resource.


The UTC time at which the virtual resources were read.

Return Value

A CacheDependency object for the specified virtual resources.

The default implementation of the GetCacheDependency method returns a null reference (Nothing in Visual Basic). To cache virtual resources for later use you must override either the GetCacheDependency method or the GetFileHash method.

The following code example implements the GetCacheDependency method for a custom VirtualPathProvider class. For the full code required to run the example, see the Example section of the VirtualPathProvider class overview topic.

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

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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