Gets information about the user making the page request.
(in System.Web.dll)
Visual Basic (Declaration)
<BrowsableAttribute(False)> _
Public ReadOnly Property User As IPrincipal
Dim instance As Page
Dim value As IPrincipal
value = instance.User
[BrowsableAttribute(false)]
public IPrincipal User { get; }
[BrowsableAttribute(false)]
public:
property IPrincipal^ User {
IPrincipal^ get ();
}
public function get User () : IPrincipal
An IPrincipal object represents the security context of the user on whose behalf the code is running, including that user's identity and any roles to which they belong.
This property uses the HttpContext object's User property to determine where the request originates.
The following code example uses the User property to access authentication and identity information for the current user. If the user is not authenticated, it redirects them to a login page.
Sub UserInfo(sender As Object, e As EventArgs)
Dim myPrincipal As IPrincipal = Me.User
Dim tableString As String
tableString = "<table border=""1""><tr><td>Name</td><td>"
tableString &= Server.HtmlEncode(myPrincipal.Identity.Name) + "</td></tr><tr><td>"
tableString &= "AuthenticationType</td><td>" + myPrincipal.Identity.AuthenticationType
tableString &= "</td></tr><tr><td>IsAuthenticated</td><td>"
tableString &= myPrincipal.Identity.IsAuthenticated.ToString() + "</td></tr></table>"
Response.Write(tableString)
End Sub
void UserInfo(Object sender, EventArgs e)
{
IPrincipal myPrincipal = this.User;
String tableString = "<table border=\"1\"><tr><td>Name</td><td>";
tableString += Server.HtmlEncode(myPrincipal.Identity.Name) + "</td></tr><tr><td>";
tableString += "AuthenticationType</td><td>" + myPrincipal.Identity.AuthenticationType;
tableString += "</td></tr><tr><td>IsAuthenticated</td><td>";
tableString += myPrincipal.Identity.IsAuthenticated + "</td></tr></table>";
Response.Write(tableString);
}
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.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Reference