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VirtualPathProvider.GetDirectory Method

Gets a virtual directory from the virtual file system.

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

public virtual VirtualDirectory GetDirectory(
	string virtualDir


Type: System.String
The path to the virtual directory.

Return Value

Type: System.Web.Hosting.VirtualDirectory
A descendent of the VirtualDirectory class that represents a directory in the virtual file system.

The GetDirectory method returns a descendent of the VirtualDirectory class that contains the file and directories contained in the directory specified in the virtualDir parameter.

If your custom VirtualPathProvider class does not support directories, the GetDirectory method should return null.


If your virtual file system will contain themes for the Web site (by creating a virtual App_Themes directory), your custom VirtualPathProvider class must support directories.

The following code example is an implementation of the GetDirectory method in a custom VirtualPathProvider class. For the full code required to run the example, see the Example section of the VirtualPathProvider class overview topic.

public override VirtualDirectory GetDirectory(string virtualDir)
  if (IsPathVirtual(virtualDir))
    return new SampleVirtualDirectory(virtualDir, this);
    return Previous.GetDirectory(virtualDir);

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.