C# 从C运行BCP时检测到错误#

我想从C#控制台应用程序运行BCP，并能够检测BCP返回到CMD的语法、权限或其他错误。我尝试了ErrorDataReceived事件，但在我看来，它在任何情况下都不会触发。你能帮我解决这个问题吗，谢谢

  processCMD("bcp", String.Format("\"select 'COUNTRY', 'MONTH' union all SELECT COUNTRY, cast(MONTH as varchar(2)) FROM DBName.dbo.TableName\" queryout {0}FILE_NAME.csv -c -t; -T -{1}", ExportDirectory, SQLServer));

    static void processCMD(string fileName, string arguments) 
            {

                System.Diagnostics.Process proc = new System.Diagnostics.Process();
                proc.StartInfo.FileName = fileName;
                proc.StartInfo.Arguments = arguments;
                proc.ErrorDataReceived += new DataReceivedEventHandler(NetErrorDataHandler);
                proc.Start();
                proc.WaitForExit();

            }

            private static void NetErrorDataHandler(object sendingProcess, DataReceivedEventArgs errLine)
            {
                Console.WriteLine(errLine);
                Console.ReadLine();
                // throw Exception ...
            }

/--最终解决方案：--------------------------------------------------------------/

static void processCMD(string fileName, string arguments)
        {
            StringBuilder cmdOutput = new StringBuilder();

            System.Diagnostics.Process proc = new System.Diagnostics.Process();
            proc.StartInfo.FileName = fileName;
            proc.StartInfo.Arguments = arguments;
            proc.StartInfo.UseShellExecute = false;
            proc.StartInfo.RedirectStandardOutput = true;
            proc.StartInfo.CreateNoWindow = true;
            proc.Start();

            while (!proc.StandardOutput.EndOfStream)
            {
                cmdOutput.Append(proc.StandardOutput.ReadLine());
            }
            proc.WaitForExit();

            if(!cmdOutput.ToString().Contains("successfully bulk-copied"))
                throw new BCPError(cmdOutput.ToString());
        }

        public class BCPError : Exception
        {
            public BCPError()
            {
            }

            public BCPError(string message)
                : base(message)
            {
            }

            public BCPError(string message, Exception inner)
                : base(message, inner)
            {
            }
        }

---

如果抛出，您可以显示错误，例如

e.ToString（）

因为BCP是一个命令行程序，所以除非您重定向它，否则您应该期望stdout是控制台。您可以这样尝试：

        static string processCMD(string fileName, string arguments) 
        {
            StringBuilder output = new StringBuilder();

            System.Diagnostics.Process proc = new System.Diagnostics.Process();
            proc.StartInfo.FileName = fileName;
            proc.StartInfo.Arguments = arguments;
            proc.UseShellExecute = false;
            proc.RedirectStandardOutput = true;
            proc.CreateNoWindow = true;
            proc.Start();
            while (!proc.StandardOutput.EndOfStream) {
                output.Append(proc.StandardOutput.ReadLine());
            }
            proc.WaitForExit();
            return output.ToString();
        }

---

所以，我将解析流的结尾是否等于标准行为，以及输出是否不同，然后我可以抛出一个错误，很好。。谢谢，我会尽快试一试