C# Cancel Windows Shutdown

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hello all.
i want to my application can prevents from windows shut down. i know that there is a system command to do that. but don't work for my program.
i use this code for "cancel" the windows shut down:

C#

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
       {

           if (e.CloseReason.Equals(CloseReason.WindowsShutDown))
           {
               MessageBox.Show("Cancelling Windows shutdown");
               string cmd = "shutdown /a";
               Process.Start(cmd);// for executing system command.
           }
       }

and also use this code, but does not work :( :

C#

public Form1()
        {
            InitializeComponent();

            SystemEvents.SessionEnding += SessionEndingEvtHandler;
               
            
        }
 private void SessionEndingEvtHandler(object sender, SessionEndingEventArgs e)
        {
                MessageBox.Show("Cancelling Windows shutdown");
                string cmd = "shutdown /a";
                Process.Start(cmd);// for executing system command.
            
            
        }

i would be grateful if anyone explain me how can in "cancel" windows shutdown.
thanks

Posted 18-Jul-13 0:04am

hamed1991

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Bernhard Hiller · Answer 1 · 2013-07-18T02:21:00

Solution 2

It's much simpler. Use your SessionEndingEvtHandler function and do:
e.Cancel = true;
That's it already.

Posted 18-Jul-13 2:21am

Bernhard Hiller

Comments

Sushil Mate 18-Jul-13 8:24am

:) I didn't read it properly. my bad.

Jean A Brandelero 18-Jul-13 16:15pm

Nice and clear. Helped me too, thanks.

Sushil Mate · Answer 2 · 2013-07-18T02:23:00

C#

public Form1()
        {
            InitializeComponent();
 
            SystemEvents.SessionEnding += SessionEndingEvtHandler;
               
            
        }
 private void SessionEndingEvtHandler(object sender, SessionEndingEventArgs e)
        {
           e.Cancel = true;
            
            
        }

For more info: MSDN[^]

http://stackoverflow.com/a/13894368[^]