进程的 InvalidOperationException [英] InvalidOperationException with Process

问题描述

我正在使用以下代码开始一个新进程:

I'm starting a new process using the following code:

Process p = new Process();
p.StartInfo.FileName = "...";
p.StartInfo.Arguments = "...";
p.Start();
p.WaitForExit(300000); // 5 minutes

if (!p.HasExited) 
    p.Kill();
Console.Write(p.ExitCode);

当该过程在 5 分钟内结束时，这是有效的，但如果没有，我得到

When the process ends within the 5 minutes, that's working, but when it doesn't, I get

InvalidOperationException(进程必须在请求之前退出信息可以确定...)

InvalidOperationException (Process must exit before requested information can be determined...).

知道为什么我会收到此异常吗?

Any idea why I'm getting this exception?

谢谢.

推荐答案

根据 MSDN，Kill方法异步执行，调用Kill方法后，调用WaitForExit方法等待进程退出，或检查 HasExited 属性以确定进程是否已退出."

According to MSDN, "The Kill method executes asynchronously. After calling the Kill method, call the WaitForExit method to wait for the process to exit, or check the HasExited property to determine if the process has exited."

换句话说，仅仅因为 Kill 返回并不意味着该过程实际上已经消失了.您需要调用 WaitForExit 等待进程真正消失.

In other words, just because Kill returns doesn't mean the process is actually gone. You'll need to call WaitForExit to wait until the process has actually disappeared.

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