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HttpServerUtility.MapPath Method

Returns the physical file path that corresponds to the specified virtual path on the Web server.

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

public function MapPath(
	path : String
) : String


Type: System.String

The virtual path of the Web server.

Return Value

Type: System.String
The physical file path that corresponds to path.


The current HttpContext is a null reference (Nothing in Visual Basic).

If path is a null reference (Nothing in Visual Basic), then the MapPath method returns the full physical path of the directory that contains the current application.

Security noteSecurity Note:

The MapPath method potentially contains sensitive information about the hosting environment. The return value should not be displayed to users.

The following example returns the physical path of the virtual directory that contains the specified Web site. In this example, the slash (/) at the beginning of the path indicates an absolute virtual path to the site.

To read MapPath in a code-behind module, use HttpContext.Current.Server.MapPath.

var filePath : String = Server.MapPath("/MyWebSite")

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0