为什么我的进程的退出方法没有被调用？

Question

I have following code, but why is the ProcessExited method never called? It is the same if I don't a use Windows shell ( startInfo.UseShellExecute = false ).

ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = true;
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.FileName = path;
startInfo.Arguments = rawDataFileName;
startInfo.WorkingDirectory = Util.GetParentDirectory(path, 1);

try
{
     Process correctionProcess = Process.Start(startInfo);
     correctionProcess.Exited += new EventHandler(ProcessExited);                   

     correctionProcess.WaitForExit();

     status = true;
}

.....

internal void ProcessExited(object sender, System.EventArgs e)
{
      //print out here
}

Answer 1

In order to receive a callback on Exited event, the EnableRaisingEvents must be set to true.

Process correctionProcess = Process.Start(startInfo);
correctionProcess.EnableRaisingEvents = true;
correctionProcess.Exited += new EventHandler(ProcessExited); 

Answer 2

From MSDN :

The Exited event indicates that the associated process exited. This occurrence means either that the process terminated (aborted) or successfully closed. This event can occur only if the value of the EnableRaisingEvents property is true.

Have you set that property to true?

Answer 3

您必须将Process.EnableRaisingEvents设置为true 。

Answer 4

设置correctionProcess.EnableRaisingEvents = true

Answer 5

I've come across examples that place new Process() in a using clause. Do not do that if you want to use the Exited feature. The using clause destroys the instance along with any event handles on Exited .

This...

using(var process = new Process())
{
   // your logic here
}

Should be this...

var process = new Process();