GenericIdentity-Klasse

Stellt einen generischen Benutzer dar.

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

Syntax

'Declaration
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class GenericIdentity
    Implements IIdentity
'Usage
Dim instance As GenericIdentity

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public class GenericIdentity : IIdentity

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public ref class GenericIdentity : IIdentity

/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public class GenericIdentity implements IIdentity

SerializableAttribute 
ComVisibleAttribute(true) 
public class GenericIdentity implements IIdentity

Hinweise

Ein Identitätsobjekt, das den Benutzer darstellt, für den der Code ausgeführt wird.

Beispiel

Im folgenden Beispiel wird die Verwendung von Membern der GenericIdentity-Klasse veranschaulicht.

Imports System
Imports System.Security.Principal

Public Class Form1
    Inherits System.Windows.Forms.Form

    ' Event handler for Run button.
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click

        tbxOutput.Cursor = Cursors.WaitCursor
        tbxOutput.Text = ""

        ' Create a GenericIdentity object with no authentication type 
        ' specified.
        Dim defaultIdentity As New GenericIdentity("DefaultUser")

        ' Retrieve a GenericIdentity created from current WindowsIdentity
        ' values.
        Dim currentIdentity As GenericIdentity = GetGenericIdentity()

        ShowIdentityPreferences(New GenericIdentity(""))
        ShowIdentityPreferences(defaultIdentity)
        ShowIdentityPreferences(currentIdentity)

        ' Align interface and conclude application.
        tbxOutput.AppendText(vbCrLf + "This sample completed " + _
            "successfully; press Exit to continue.")

        tbxOutput.Cursor = Cursors.Default
    End Sub

    ' Print identity preferences to the console window.
    Private Sub ShowIdentityPreferences( _
        ByVal genericIdentity As GenericIdentity)

        ' Retrieve the name of the generic identity object.
        Dim identityName As String = genericIdentity.Name

        ' Retrieve the authentication type of the generic identity object.
        Dim identityAuthenticationType As String
        identityAuthenticationType = genericIdentity.AuthenticationType()

        tbxOutput.AppendText(vbCrLf + "Name: " + identityName)
        tbxOutput.AppendText(vbCrLf + "Type: " + identityAuthenticationType)

        tbxOutput.AppendText(vbCrLf)
        
        ' Verify that the user's identity has been authenticated
        ' (was created with a valid name).
        If (genericIdentity.IsAuthenticated) Then
            tbxOutput.AppendText("The user's identity has been " + _
                "authenticated.")
        Else
            tbxOutput.AppendText("The user's identity has not been " + _
                "authenticated.")
        End If

        tbxOutput.AppendText(vbCrLf + "~~~~~~~~~~~~~~~~~~~~~~~~~")
    End Sub

    ' Create generic identity based on values from the current
    ' WindowsIdentity.
    Private Function GetGenericIdentity()
        ' Get values from the current WindowsIdentity.
        Dim windowsIdentity As WindowsIdentity = windowsIdentity.GetCurrent()

        ' Construct a GenericIdentity object based on the current Windows
        ' identity name and authentication type.
        Dim authenticationType As String = windowsIdentity.AuthenticationType
        Dim userName As String = windowsIdentity.Name
        Dim authenticatedGenericIdentity As _
            New GenericIdentity(userName, authenticationType)

        Return authenticatedGenericIdentity
    End Function

    ' Event handler for Exit button.
    Private Sub Button2_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button2.Click

        Application.Exit()
    End Sub
#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Panel2 As System.Windows.Forms.Panel
    Friend WithEvents Panel1 As System.Windows.Forms.Panel
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.tbxOutput = New System.Windows.Forms.RichTextBox
        Me.Panel2.SuspendLayout()
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel2
        '
        Me.Panel2.Controls.Add(Me.Button1)
        Me.Panel2.Controls.Add(Me.Button2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
        Me.Panel2.DockPadding.All = 20
        Me.Panel2.Location = New System.Drawing.Point(0, 320)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(616, 64)
        Me.Panel2.TabIndex = 1
        '
        'Button1
        '
        Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button1.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(446, 20)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "&Run"
        '
        'Button2
        '
        Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button2.Font = New System.Drawing.Font( _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(521, 20)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75, 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "E&xit"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.tbxOutput)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.DockPadding.All = 20
        Me.Panel1.Location = New System.Drawing.Point(0, 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(616, 320)
        Me.Panel1.TabIndex = 2
        '
        'tbxOutput
        '
        Me.tbxOutput.AccessibleDescription = _
            "Displays output from application."
        Me.tbxOutput.AccessibleName = "Output textbox."
        Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
        Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
        Me.tbxOutput.Name = "tbxOutput"
        Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
        Me.tbxOutput.TabIndex = 1
        Me.tbxOutput.Text = "Click the Run button to run the application."
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
        Me.ClientSize = New System.Drawing.Size(616, 384)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Name = "Form1"
        Me.Text = "GenericIdentity"
        Me.Panel2.ResumeLayout(False)
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region
End Class

using System;
using System.Security.Principal;

class GenericIdentityMembers
{
    [STAThread]
    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(""));
        ShowIdentityPreferences(defaultIdentity);
        ShowIdentityPreferences(currentIdentity);

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

    // 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 = 
            genericIdentity.AuthenticationType;

        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.");
        }
        else
        {
            Console.WriteLine("The user's identity has not been " + 
                "authenticated.");
        }
        Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~~~~~");
    }

    // 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;
    }
}

using namespace System;
using namespace System::Security::Principal;
void ShowIdentityPreferences( GenericIdentity^ genericIdentity );
GenericIdentity^ GetGenericIdentity();

[STAThread]
int main()
{
   // Create a GenericIdentity object with no authentication type 
   // specified.
   GenericIdentity^ defaultIdentity = gcnew GenericIdentity( "DefaultUser" );

   // Retrieve a GenericIdentity created from current WindowsIdentity
   // values.
   GenericIdentity^ currentIdentity = GetGenericIdentity();
   ShowIdentityPreferences( gcnew GenericIdentity( "" ) );
   ShowIdentityPreferences( defaultIdentity );
   ShowIdentityPreferences( currentIdentity );
   Console::WriteLine( "The sample completed successfully; "
   "press Enter to continue." );
   Console::ReadLine();
}

// Print identity preferences to the console window.
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 = genericIdentity->AuthenticationType;

   Console::WriteLine( "Name: {0}", identityName );
   Console::WriteLine( "Type: {0}", 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." );
   }
   else
   {
      Console::WriteLine( "The user's identity has not been "
      "authenticated." );
   }

   Console::WriteLine( "~~~~~~~~~~~~~~~~~~~~~~~~~" );
}


// Create generic identity based on values from the current
// WindowsIdentity.
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 = gcnew GenericIdentity( userName,authenticationType );

   return authenticatedGenericIdentity;
}

import System.*;
import System.Security.Principal.*;

class GenericIdentityMembers
{
    /** @attribute STAThread()
     */
    public 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(""));
        ShowIdentityPreferences(defaultIdentity);
        ShowIdentityPreferences(currentIdentity);

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

    // Print identity preferences to the console window.
    private static void ShowIdentityPreferences(GenericIdentity genericIdentity)
    {
        // Retrieve the name of the generic identity object.
        String identityName = genericIdentity.get_Name();
        // Retrieve the authentication type of the generic identity object.
        String identityAuthenticationType 
            = genericIdentity.get_AuthenticationType();
        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.get_IsAuthenticated()) {
            Console.WriteLine("The user's identity has been authenticated.");
        }
        else {
            Console.WriteLine("The user's identity has not been " 
                + "authenticated.");
        }
        Console.WriteLine("~~~~~~~~~~~~~~~~~~~~~~~~~");
    } //ShowIdentityPreferences

    // 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.get_AuthenticationType();
        String userName = windowsIdentity.get_Name();
        GenericIdentity authenticatedGenericIdentity 
            = new GenericIdentity(userName, authenticationType);
        return authenticatedGenericIdentity;
    } //GetGenericIdentity
} //GenericIdentityMembers

Vererbungshierarchie

System.Object
  System.Security.Principal.GenericIdentity
     System.Net.HttpListenerBasicIdentity

Threadsicherheit

Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.

Plattformen

Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

GenericIdentity-Member
System.Security.Principal-Namespace