How to know when a process created by Process.Start() was closed?

问题

I'm using this:

var proc2 = Process.Start(Path.GetFullPath(filename));
proc2.Exited += (_, __) =>
{
    MessageBox.Show("closed!");
};

But I close the window and don't get MessageBox.Show("closed!");. How to fix this?

回答1:

You need to set Process.EnableRaisingEvents to true.

回答2:

You forgot to set the EnableRaisingEvents to true.

Also, you may want to create a Process with the constructor, set the ProcessStartInfo and then call Start after you register to listen to the event. Otherwise you have a race condition where the Process exits before you even register to listen for the event (unlikely I know, but not mathematically impossible).

var process = new Process();

process.StartInfo = new ProcessStartInfo(Path.GetFullPath(filename));
process.EnableRaisingEvents = true;

process.Exited += (a, b) =>
{
  MessageBox.Show("closed!");
};

process.Start();

回答3:

you forget Enable Events

Process p;
p = Process.Start("cmd.exe");
p.EnableRaisingEvents = true;
p.Exited += (sender, ea) =>
            {
                  System.Windows.Forms.MessageBox.Show("Cmd was Exited");
            };

回答4:

You can fire the alert after proc2.WaitForExit()

来源：https://stackoverflow.com/questions/10920964/how-to-know-when-a-process-created-by-process-start-was-closed