HttpRequest.MapPath Method (String, String, Boolean)

Maps the specified virtual path to a physical path.

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

public string MapPath (
	string virtualPath,
	string baseVirtualDir,
	bool allowCrossAppMapping
public String MapPath (
	String virtualPath, 
	String baseVirtualDir, 
	boolean allowCrossAppMapping
public function MapPath (
	virtualPath : String, 
	baseVirtualDir : String, 
	allowCrossAppMapping : boolean
) : String
Not applicable.



The virtual path (absolute or relative) for the current request.


The virtual base directory path used for relative resolution.


true to indicate that virtualPath may belong to another application; otherwise, false.

Return Value

The physical path on the server.

Exception typeCondition


allowCrossMapping is false and virtualPath belongs to another application.


No HttpContext object is defined for the request.

Caution noteCaution:

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

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, 1.1, 1.0

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