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GenericIdentity Class
Visual Studio 2008
Represents a generic user.
Assembly: mscorlib (in mscorlib.dll)
An identity object represents the user on whose behalf the code is running.
| Topic | Location |
|---|---|
| How to: Create GenericPrincipal and GenericIdentity Objects | .NET Framework: Security |
| How to: Create GenericPrincipal and GenericIdentity Objects | .NET Framework: Security |
The following example shows the use of members of the GenericIdentity class.
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
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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