Catch Process.Exited id

Question

如何在事件引發時捕獲進程ID？

Process pros = Process.Start(ProcessStartInfo); 
pros.EnableRaisingEvents = true; 
pros.Exited += pros_Exited; 

private void pros_Exited(object sender, EventArgs e) 
{ 
    int processId = ?? 
} 

Answer 1

您可以使用匿名函數捕獲的Process變量：

Process pros = Process.Start(processStartInfo); 
pros.EnableRaisingEvents = true; 
pros.Exited += (object sender, EventArgs e) => 
{ 
    int processId = pros.Id; 
    // ... 
}; 

編輯：如果您打算使用上面的符號在一個循環中，請確保您瞭解closures。

foreach (Process process in myProcesses) 
{ 
    process.EnableRaisingEvents = true; 
    Process processInner = process; // copy to inner variable 
    processInner.Exited += (object sender, EventArgs e) => 
    { 
     int processId = processInner.Id; // always reference inner variable 
     // ... 
    }; 
}