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WebRequestInformation.Principal Property

Gets the instance of the managed-code principal associated with the Web request.

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

public IPrincipal Principal { get; }

Property Value

Type: System.Security.Principal.IPrincipal
The IPrincipal instance that is associated with the request event.

The principal refers to the authenticated entity that issued the Web request.

The following code example shows how to use the principal associated with the Web request.

// Get the request principal.
public string GetRequestPrincipal()
    // Get the request principal.
    return (string.Format(
        "Request principal name: {0}",

.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.