Windows窗体写入控制台

Question

I am simply trying to open the console and write a single line and execute it with the console staying open once the line is written. Currently, the command line is opening blank and not writing anything. Any way to fix this?

Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardInput = true;
cmd.StartInfo.RedirectStandardOutput = false;
cmd.Start();

cmd.StandardInput.WriteLine("echo hello");
cmd.StandardInput.WriteLine("pause");
cmd.WaitForExit();

Answer 1

You could most likely just issue a pause:

cmd.StandardInput.WriteLine("pause");

Should solve it.

Remember to add:

cmd.StartInfo.RedirectStandardInput = false;

If that does not work then most likely still an issue, as reported at Microsoft regarding CMD specifically and output. See: http://connect.microsoft.com/VisualStudio/feedback/details/609801/unable-to-redirect-only-the-standard-input-of-process-cmd-exe-or-batch-file-from-windows-form-application

Answer 2

This will fix it:

cmd.StartInfo.RedirectStandardOutput = false;

This works perfect for me:

using System.Diagnostics;

 namespace ConsoleApplication1
 {
  class Program
  {
    static void Main(string[] args)
    {
        Process cmd = new Process();
        cmd.StartInfo.FileName = "cmd.exe";
        cmd.StartInfo.UseShellExecute = false;
        cmd.StartInfo.RedirectStandardInput = true;
        //cmd.StartInfo.RedirectStandardOutput = true;
        cmd.Start();

        cmd.StandardInput.WriteLine("pause");
        System.Threading.Thread.Sleep(5000);
        cmd.StandardInput.WriteLine(" ");
        cmd.StandardInput.WriteLine("dir /p");
        cmd.StandardInput.WriteLine("exit");
        cmd.WaitForExit();
    }
  }
}

Answer 3

        Process cmd = new Process();
        cmd.StartInfo.FileName = "cmd.exe";
        cmd.StartInfo.Arguments = "/K \"echo hello\"";
        cmd.Start();