LoginOperation-Klasse
Vorgangstyp, der von Login
-Vorgängen für AuthenticationService zurückgegeben wird.
Namespace: System.ServiceModel.DomainServices.Client.ApplicationServices
Assembly: System.ServiceModel.DomainServices.Client (in system.servicemodel.domainservices.client.dll)
Verwendung
'Usage
Dim instance As LoginOperation
Syntax
'Declaration
Public NotInheritable Class LoginOperation
Inherits AuthenticationOperation
public sealed class LoginOperation : AuthenticationOperation
public ref class LoginOperation sealed : public AuthenticationOperation
public final class LoginOperation extends AuthenticationOperation
public final class LoginOperation extends AuthenticationOperation
Beispiel
Das folgende Beispiel zeigt einen Aufruf der Login-Methode mit Anmeldeparametern und einer Rückrufmethode, die ein LoginOperation-Objekt als Parameter akzeptiert.
Protected Overrides Sub OnNavigatedTo(ByVal e As System.Windows.Navigation.NavigationEventArgs)
SetControlVisibility(WebContext.Current.User.IsAuthenticated)
End Sub
Private Sub LoginButton_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
Dim lp As LoginParameters = New LoginParameters(UserName.Text, Password.Password)
WebContext.Current.Authentication.Login(lp, AddressOf Me.LoginOperation_Completed, Nothing)
LoginButton.IsEnabled = False
LoginResult.Text = ""
End Sub
Private Sub LoginOperation_Completed(ByVal lo As LoginOperation)
If (lo.HasError) Then
LoginResult.Text = lo.Error.Message
LoginResult.Visibility = System.Windows.Visibility.Visible
lo.MarkErrorAsHandled()
ElseIf (lo.LoginSuccess = False) Then
LoginResult.Text = "Login failed. Please check user name and password."
LoginResult.Visibility = System.Windows.Visibility.Visible
ElseIf (lo.LoginSuccess = True) Then
SetControlVisibility(True)
End If
LoginButton.IsEnabled = True
End Sub
Private Sub SetControlVisibility(ByVal isAuthenticated As Boolean)
If (isAuthenticated) Then
LoginBorder.Visibility = System.Windows.Visibility.Collapsed
WelcomeText.Text = "Welcome " + WebContext.Current.User.Name
WelcomeText.Visibility = System.Windows.Visibility.Visible
LogoutButton.Visibility = System.Windows.Visibility.Visible
Else
LoginBorder.Visibility = System.Windows.Visibility.Visible
WelcomeText.Visibility = System.Windows.Visibility.Collapsed
LogoutButton.Visibility = System.Windows.Visibility.Collapsed
End If
End Sub
Private Sub LogoutButton_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
WebContext.Current.Authentication.Logout(AddressOf Me.LogoutOperation_Completed, Nothing)
End Sub
Private Sub LogoutOperation_Completed(ByVal lo As LogoutOperation)
If (Not (lo.HasError)) Then
SetControlVisibility(False)
Else
Dim ew As ErrorWindow = New ErrorWindow("Logout failed.", "Please try logging out again.")
ew.Show()
lo.MarkErrorAsHandled()
End If
End Sub
protected override void OnNavigatedTo(NavigationEventArgs e)
{
SetControlVisibility(WebContext.Current.User.IsAuthenticated);
}
private void LoginButton_Click(object sender, RoutedEventArgs e)
{
LoginParameters lp = new LoginParameters(UserName.Text, Password.Password);
WebContext.Current.Authentication.Login(lp, this.LoginOperation_Completed, null);
LoginButton.IsEnabled = false;
LoginResult.Text = "";
}
private void LoginOperation_Completed(LoginOperation lo)
{
if (lo.HasError)
{
LoginResult.Text = lo.Error.Message;
LoginResult.Visibility = System.Windows.Visibility.Visible;
lo.MarkErrorAsHandled();
}
else if (lo.LoginSuccess == false)
{
LoginResult.Text = "Login failed. Please check user name and password.";
LoginResult.Visibility = System.Windows.Visibility.Visible;
}
else if (lo.LoginSuccess == true)
{
SetControlVisibility(true);
}
LoginButton.IsEnabled = true;
}
private void SetControlVisibility(bool isAuthenticated)
{
if (isAuthenticated)
{
LoginBorder.Visibility = System.Windows.Visibility.Collapsed;
WelcomeText.Text = "Welcome " + WebContext.Current.User.Name;
WelcomeText.Visibility = System.Windows.Visibility.Visible;
LogoutButton.Visibility = System.Windows.Visibility.Visible;
}
else
{
LoginBorder.Visibility = System.Windows.Visibility.Visible;
WelcomeText.Visibility = System.Windows.Visibility.Collapsed;
LogoutButton.Visibility = System.Windows.Visibility.Collapsed;
}
}
private void LogoutButton_Click(object sender, RoutedEventArgs e)
{
WebContext.Current.Authentication.Logout(this.LogoutOperation_Completed, null);
}
private void LogoutOperation_Completed(LogoutOperation lo)
{
if (!lo.HasError)
{
SetControlVisibility(false);
}
else
{
ErrorWindow ew = new ErrorWindow("Logout failed.", "Please try logging out again.");
ew.Show();
lo.MarkErrorAsHandled();
}
}
Vererbungshierarchie
System.Object
System.ServiceModel.DomainServices.Client.OperationBase
System.ServiceModel.DomainServices.Client.ApplicationServices.AuthenticationOperation
System.ServiceModel.DomainServices.Client.ApplicationServices.LoginOperation
Threadsicherheit
Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht sichergestellt.
Plattformen
Entwicklungsplattformen
Windows XP Home Edition, Windows XP Professional, Windows Server 2003 , Windows Server 2008 und Windows 2000
Zielplattformen
Change History
Siehe auch
Verweis
LoginOperation-Member
System.ServiceModel.DomainServices.Client.ApplicationServices-Namespace