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📄 default.aspx

📁 This is a book about vb.you could learn this from this book
💻 ASPX
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<%@Page Language="VB" %>
<%@Import Namespace="System.Security.Principal" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head>
<title>Simple Windows Authentication</title>
<style type="text/css">
body {font-family:Tahoma,Arial,sans-serif; font-size:10pt}
input {font-family:Tahoma,Arial,sans-serif; font-size:9pt}
.heading {font-family:Tahoma,Arial,sans-serif; font-size:14pt; font-weight:bold}
.subhead {font-family:Tahoma,Arial,sans-serif; font-size:12pt; font-weight:bold; padding-bottom:5px}
.cite {font-family:Tahoma,Arial,sans-serif; font-size:8pt}
</style></head>
<body bgcolor="#ffffff">
<span class="heading">Simple Windows Authentication</span><hr />
<!--------------------------------------------------------------------------->

<div id="msgHello" runat="server" /><p />

<script language="VB" runat="server">

Sub Page_Load()

  'see if the user has been authenticated
  If User.Identity.IsAuthenticated Then

    'create a reference to a WIndowsIdentity object that
    'represents this users Indentity object
    Dim objIdentity = CType(User.Identity, WindowsIdentity)

    'get the current WindowsIdentity object for this user
    'this contains more specific information
    Dim objWinIdentity = objIdentity.GetCurrent()

    'display the properties
    'NOTE: change the group names and the machine name to suit your setup
    msgHello.InnerHtml = "Hello <b>" & objWinIdentity.Name & "</b><br />" _
                       & "The authentication method used was <b>" _
                       & objWinIdentity.AuthenticationType & "</b><br />" _
                       & "Is this a System account: <b>" _
                       & objWinIdentity.IsSystem & "</b><br />" _
                       & "Is this an Anonymous account: <b>" _
                       & objWinIdentity.IsAnonymous & "</b><br />" _
                       & "Is this a Guest account: <b>" _
                       & objWinIdentity.IsGuest & "</b><br />" _
                       & "Is this account a member of the 'Administrators' group: <b>" _
                       & User.IsInRole("BUILTIN\Administrators") & "</b><br />" _
                       & "Is this account a member of the 'Users' group: <b>" _
                       & User.IsInRole("BUILTIN\Users") & "</b><br />" _
                       & "Is this account a member of the '{yourserver}\TestGroup' group: <b>" _
                       & User.IsInRole("{yourserver}\TestGroup") & "</b><br />" _
                       & "Is this account a member of the '{yourserver}\NoMembers' group: <b>" _
                       & User.IsInRole("{yourserver}\NoMembers") & "</b>"

  Else

    msgHello.InnerHtml = "Hello, you were not authenticated"

  End If

End Sub

</script>

<!--------------------------------------------------------------------------->
<hr /><span class="cite">&copy;2001 <a class="cite" href="http://www.wrox.com/">Wrox Press</a> -
<a class="cite" href="http://www.wrox.com/Books/Book_Details.asp?isbn=1861004885">Professional ASP.NET</a> (ISBN: 1-861004-88-5)</span>
</body>
</html>

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