c# - 为什么 wpf 应用程序中没有收到来自标准输出和错误的所有数据，但它在控制台应用程序中？

Question

当您在下面的代码中调用 RedirectCommandStream 时，它在控制台应用程序中可以完美运行，但是在 wpf 应用程序中它会丢失标准输出数据和一些标准错误输出。然后使用从该方法输出的字符串生成器在 wpf 应用程序上显示。

有人可以帮忙吗，卡在这个问题上很长时间了？

        class ProcessStreamRedirection
{
    private static StringBuilder OutputBuilder = null;

    public static StringBuilder RedirectCommandStreams(string FileName,string Arguments)
    {
        Process Process;
        Process = new Process();
        Process.StartInfo.FileName = FileName;
        Process.StartInfo.Arguments = Arguments;
        Process.StartInfo.UseShellExecute = false;
        Process.StartInfo.RedirectStandardOutput = true;
        Process.StartInfo.CreateNoWindow = false;
        Process.OutputDataReceived += new DataReceivedEventHandler(DataHandler);
        OutputBuilder = new StringBuilder();
        Process.StartInfo.RedirectStandardError = true;
        Process.ErrorDataReceived += new DataReceivedEventHandler(DataHandler);

        OutputBuilder.AppendLine(string.Format("Starting process: {0} {1}", Process.StartInfo.FileName ,Process.StartInfo.Arguments));

        Process.Start();

        Process.BeginOutputReadLine();
        Process.BeginErrorReadLine();

        Process.WaitForExit();

        if (OutputBuilder.Length > 0)
        {
            OutputBuilder.AppendLine(string.Format("Output:\n{0}\n", OutputBuilder));
        }

        Process.Close();

        return OutputBuilder;
    }

    private static void DataHandler(object sendingProcess, DataReceivedEventArgs outLine)
    {
        if (!String.IsNullOrEmpty(outLine.Data))
        {
            OutputBuilder.AppendLine(outLine.Data);
        }
    }
}