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GenericIdentity Class

Represents a generic user.


Namespace:  System.Security.Principal
Assembly:  mscorlib (in mscorlib.dll)

public class GenericIdentity : IIdentity

The GenericIdentity type exposes the following members.

Public methodGenericIdentity(String)Initializes a new instance of the GenericIdentity class representing the user with the specified name.
Public methodGenericIdentity(String, String)Initializes a new instance of the GenericIdentity class representing the user with the specified name and authentication type.

Public propertyAuthenticationTypeGets the type of authentication used to identify the user.
Public propertyIsAuthenticatedGets a value indicating whether the user has been authenticated.
Public propertyNameGets the user's name.

Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

An identity object represents the user on whose behalf the code is running.

The following example shows the use of members of the GenericIdentity class.

using System;
using System.Security.Principal;

class GenericIdentityMembers
    static void Main(string[] args)
        // Create a GenericIdentity object with no authentication type 
        // specified.
        GenericIdentity defaultIdentity = new GenericIdentity("DefaultUser");

        // Retrieve a GenericIdentity created from current WindowsIdentity
        // values.
        GenericIdentity currentIdentity = GetGenericIdentity();

        ShowIdentityPreferences(new GenericIdentity(""));

        Console.WriteLine("The sample completed successfully; " +
            "press Enter to continue.");

    // Print identity preferences to the console window.
    private static void ShowIdentityPreferences(
        GenericIdentity genericIdentity)
        // Retrieve the name of the generic identity object.
        string identityName = genericIdentity.Name;

        // Retrieve the authentication type of the generic identity object.
        string identityAuthenticationType = 

        Console.WriteLine("Name: " + identityName);
        Console.WriteLine("Type: " + identityAuthenticationType);

        // Verify that the user's identity has been authenticated
        // (was created with a valid name).
        if (genericIdentity.IsAuthenticated)
            Console.WriteLine("The user's identity has been authenticated.");
            Console.WriteLine("The user's identity has not been " + 

    // Create generic identity based on values from the current
    // WindowsIdentity.
    private static GenericIdentity GetGenericIdentity()
        // Get values from the current WindowsIdentity.
        WindowsIdentity windowsIdentity = WindowsIdentity.GetCurrent();

        // Construct a GenericIdentity object based on the current Windows
        // identity name and authentication type.
        string authenticationType = windowsIdentity.AuthenticationType;
        string userName = windowsIdentity.Name;
        GenericIdentity authenticatedGenericIdentity =
            new GenericIdentity(userName, authenticationType);

        return authenticatedGenericIdentity;

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.