c# - 更正 EventHandler 以在记事本关闭时告诉我

Question

我有以下内容:

class Program {

    static void Main(string[] args) {

        Process pr;
        pr = new Process();
        pr.StartInfo = new ProcessStartInfo(@"notepad.exe");
        pr.Disposed += new EventHandler(YouClosedNotePad);
        pr.Start();

        Console.WriteLine("press [enter] to exit");
        Console.ReadLine();
    }
    static void YouClosedNotePad(object sender, EventArgs e) {
        Console.WriteLine("thanks for closing notepad");
    }

}

当我关闭记事本时，我没有收到我希望收到的消息 - 我该如何修改以便关闭记事本返回到控制台？

Answer 1

你需要两件事 - enable raising events , 并订阅 Exited事件:

    static void Main(string[] args)
    {            
        Process pr;
        pr = new Process();
        pr.StartInfo = new ProcessStartInfo(@"notepad.exe");
        pr.EnableRaisingEvents = true; // first thing
        pr.Exited += pr_Exited; // second thing
        pr.Start();

        Console.WriteLine("press [enter] to exit");
        Console.ReadLine();

        Console.ReadKey(); 
    }

    static void pr_Exited(object sender, EventArgs e)
    {
        Console.WriteLine("exited");
    }