Help with Login Screen C#

Koen Lemmen

Hi! I am Koen Lemmen from the Netherlands and I am 15 years old! Can anybody help me?

I am making a Login Screen in C#. Un till now everything goes fine. The application can only close when the password is right. But people can just move it to the side and go on internet... How to make the form the only thing active. So people can't change screen before they are logged in.

Greets Koen!

Additional detail:

I thought it would be possible to get a system like UAC where everything else is dimmed and nothing can be used until the button in UAC is pushed.
Or a system like a normal pop up error where a button has to be pushed before you can go on.

4 Replies

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Sam Hobbs14y ago
I think I understand what you are asking. You want to be able to control who can access the interenet from your program. That is not as easy to do as you are hoping.

If you want to prevent the use of the internet unless someone has logged in using your program then there is no easy way to do that. The most reliable solution is to require everyone to have a separate Windows user account and evdryone must login using their account. Then you can restrict specified users from using the internet.

If you try to do it your way, then there are many ways around the problem. Someone could install a diffferent browser program. Or they could probably execute a browser program from a flash drive. There are other possibilities that I won't evne describe here.

There were nothing like the internet when I was your age. Young people can now see extremely explicit material very easily. I assume you are trying to help adults to prevent other young people from havng access to material that they should not have access to. Instead of writing your own software, you should use software that has already been devloped for that purpose.

It is ironic that young people often know more about computers than adults. It is likely that there are many young people that can defeat anything that many adults can do to restrict the young people.
Ken14y ago
Go in the registry to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Winlogon. Change the "shell" to point to your application. Then go to the Group Policy and restrict people from being able to fire Task Manager. Then just have your program fire off explorer.exe after successful authentication.

Not sure if that's the best way to do it, I'm not an expert.. it's just how I would do it.
Koen Lemmen14y ago
Its not really what I mean. The login system is finished.
I only need some kind of script that disables everything till I'm logged in.
Like UAC and a pop up error.
Satyapriya Nayak14y ago
Hi Koen,

Please refer the below link

http://www.c-sharpcorner.com/uploadfile/abhikumarvatsa/simple-login-project-in-Asp-Net/default.aspx

Thanks