c# - 等待外部进程完成

Question

我有一个被调用的方法，虽然我希望消息框在方法完成后显示(现在消息框在调用方法后立即显示):

if (Check == true)
{
    StartConvIpod();
}
else
{

}
MessageBox.Show("Operation Successful!");

启动ConvIpod:

      private void StartConvIpod()
        {

            string res = Directory.EnumerateFiles("dump").
    OrderBy(x => File.GetCreationTime(x)).Last();

            string sub = res.Substring(5);

            string sub2 = sub.Substring(0, sub.Length - 4);


            Process p = new Process();
            p.StartInfo.WorkingDirectory = "dump";
            p.StartInfo.FileName = "ffmpeg.exe";
            p.StartInfo.Arguments = "-i " + sub + " -f mp4 -vcodec mpeg4 -b 700k -aspect 4:3 -r 23.98 -s 320x240 -acodec ac3 -ar 48000 iPodConversions\\" + sub2 + ".mp4";
            p.Start();
}

Answer 1

您需要添加:

p.Start();
p.WaitForExit(); // or p.WaitForExit(Timeout-Period-In-Milliseconds);