Difference in WinForm Application and WPF Application

Question

Hi Guys There is interesting problem down here. I use this code If My.User.CurrentPrincipal.IsInRole(Administrators) Then MsgBox(Administrator) Else MsgBox(Not Administrator) End If in two different applications with below specs: 1. Windows Form Application with .NET Framework 3.5 (VB.NET) 2. WPF Windows Applciation with .NET Framework 3.5 (VB.NET) In WinForm app it shows Administrator in Message Box. But in WPF it shows Not Administrator. What is reason behind this ? Any idea ? Thanks Regards Itz.Irshad

brunda k · Answer

http://stackoverflow.com/questions/1521520/how-to-use-windows-authentication-in-wpf http://www.dreamincode.net/code/snippet1558.htm My.User.Name is empty Windows Form Application with .NET Framework 3.5 (VB.NET) - Properties - EnableapplicationFramework - Authentication mode(Windows) But WPF Windows Applciation with .NET Framework 3.5 (VB.NET) - Properties-EnableApplicationFrameworkthere is no option of Authentication mode so we need use My.User.InitializeWithWindowsuser() I tried this code and it worked in windows7 My.User.InitializeWithWindowsUser() If My.User.IsAuthenticated Then If My.User.IsInRole(Administrators) Then Label1.Content = Admin Else Label1.Content = Not admin End If End If

Muhammad Irshad · Answer

Nope. That piece of code is working accurately. But not getting what is wrong with this code. Anyhow Thanks for your time. Regards Itz.Irshad

Vulpes · Answer

In that case I've no idea why the code should produce different answers from within WF and WPF applications :-/ Does the code I suggested in your previous thread for Windows 7 exhibit similar behaviour?

Muhammad Irshad · Answer

Dear Vulpes Both apps are running on same machine and OS is not either Win 7 or Vista. It's Win XP. Thanks Regards Itz.Irshad

Vulpes · Answer

Are you running the applications on the same machine or on different machines? If it's the latter and both machines are running either Vista or Windows 7 then it could be due to a difference in UAC settings.