FormsAuthenticationEventArgs.User Egenskap

public:
 property System::Security::Principal::IPrincipal ^ User { System::Security::Principal::IPrincipal ^ get(); void set(System::Security::Principal::IPrincipal ^ value); };

public System.Security.Principal.IPrincipal User { get; set; }

member this.User : System.Security.Principal.IPrincipal with get, set

Public Property User As IPrincipal

Egenskapsvärde

Objektet IPrincipal som ska associeras med den aktuella begäran.

Exempel

I följande exempel används händelsen FormsAuthentication_OnAuthenticate för att ange User egenskapen för den aktuella HttpContext till ett GenericPrincipal objekt med en anpassad Identity.

public void FormsAuthentication_OnAuthenticate(object sender, FormsAuthenticationEventArgs args)
{
  if (FormsAuthentication.CookiesSupported)
  {
    if (Request.Cookies[FormsAuthentication.FormsCookieName] != null)
    {
      try
      {
        FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(
          Request.Cookies[FormsAuthentication.FormsCookieName].Value);
        
        args.User = new System.Security.Principal.GenericPrincipal(
          new Samples.AspNet.Security.MyFormsIdentity(ticket),
          new string[0]);
      }
      catch (Exception e)
      {
        // Decrypt method failed.
      }
    }
  }
  else
  {
    throw new HttpException("Cookieless Forms Authentication is not " +
                            "supported for this application.");
  }
}

Public Sub FormsAuthentication_OnAuthenticate(sender As Object, _
                                              args As FormsAuthenticationEventArgs)
  If FormsAuthentication.CookiesSupported Then
    If Not Request.Cookies(FormsAuthentication.FormsCookieName) Is Nothing Then
      Try
        Dim ticket As FormsAuthenticationTicket = FormsAuthentication.Decrypt( _
          Request.Cookies(FormsAuthentication.FormsCookieName).Value)
        
        args.User = New System.Security.Principal.GenericPrincipal( _
          New Samples.AspNet.Security.MyFormsIdentity(ticket), _
          New String(0) {})
      Catch e As HttpException
        ' Decrypt method failed.
      End Try
    End If
  Else
      Throw New Exception("Cookieless Forms Authentication is not " & _
                            "supported for this application.")
  End If
End Sub

Kommentarer

Du kan använda User egenskapen för att ange User egenskapen för den aktuella HttpContext till ett anpassat IPrincipal objekt.

Om du inte anger något värde för User egenskapen under händelsen FormsAuthentication_OnAuthenticate används identiteten som tillhandahålls av formulärautentiseringsbiljetten i cookien eller URL:en.

Se även

• Formulärautentiseringsprovider