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HttpRequestWrapper.MapPath Method (String, String, Boolean)

Maps the specified virtual path to a physical path on the server.

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

public override string MapPath(
	string virtualPath,
	string baseVirtualDir,
	bool allowCrossAppMapping


Type: System.String

The virtual path (absolute or relative) to map to a physical path.

Type: System.String

The virtual base directory path that is used for relative resolution.

Type: System.Boolean

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

Return Value

Type: System.String
The physical path on the server.


allowCrossAppMapping is false and virtualPath belongs to another application.


No HttpContext object is defined for the request.

.NET Framework

Supported in: 4.5, 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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