Windows服务（C＃）无法启动

Question

Apologies for my English, I'm not a native speaker.

I'm trying to make a Windows service. If I try to build, install and run a VS template I don't get any errors.

I have ported my winform application to a service, made an installer, added some data sources, added a reference for the webservice, added some classes, but DIDN'T add any code to OnStart() and OnStop(). My code builds correctly and I can start and stop the service from the service manager.

However, if I add some code to the service class (which I don't call anywhere) and if I don't add code to OnStart() and to OnStop() then I can't start the service and the error is something like "The service doesn't respond the control functions". In the event log I can see the exception:

  System.ArgumentOutOfRangeException
Stack:
 in System.String.InternalSubStringWithChecks(Int32, Int32, Boolean)
 in System.String.Substring(Int32, Int32)
 in UpdaterFIAS.FIASMainClass.getNameFile(System.String, System.String, System.String)
 in UpdaterFIAS.FIASMainClass..ctor()
 in UpdaterFIAS.Updater..ctor()
 in UpdaterFIAS.Program.Main()

And I can see here my function getNameFile() is throwing an Exception. However, this isn't called in my code because I have empty OnStart(). So, how can I find what went wrong if the event log doesn't write anything ( if it is in the OnStart() ) ? And I can't attach a debugger to it because it throws this exception.

edit: Forgot to say, my code works correctly when I use windows forms but here I don't call anything in OnStart, the project builds without errors but I have an exception when starting the service.

EDIT 2: Program.cs code:

namespace UpdaterFIAS
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        static void Main()
        {
            ServiceBase[] ServicesToRun;
            ServicesToRun = new ServiceBase[] 
            { 
                new Updater() 
            };
            ServiceBase.Run(ServicesToRun);
        }
    }
}

Updater.cs code:

namespace UpdaterFIAS
{
    public partial class Updater : ServiceBase
    {
        public Updater()
        {
            InitializeComponent();
            if (!System.Diagnostics.EventLog.SourceExists("MySource"))
            {
                System.Diagnostics.EventLog.CreateEventSource("MySource", "MyNewLog");
            }
            eventLog1.Source = "MySource";
            eventLog1.Log = "MyNewLog";
        }

        FIASMainClass mainFIAS = new FIASMainClass();

        protected override void OnStart(string[] args)
        {
            //timer1 = new System.Timers.Timer(5000);
            //timer1.Elapsed += timer1_Elapsed;
            //timer1.AutoReset = false;
            //timer1.Enabled = true;

            //ServiceStarterThread = new Thread(ServiceStarter);
            //ServiceStarterThread.Start();

            eventLog1.WriteEntry("In OnStart");
            //mainFIAS.Start();
        }

        protected override void OnStop()
        {
            //if (updater != null && (updater.ThreadState != System.Threading.ThreadState.Aborted && updater.ThreadState != System.Threading.ThreadState.Stopped)) updater.Abort();
            //if (log != null && (log.ThreadState != System.Threading.ThreadState.Aborted && log.ThreadState != System.Threading.ThreadState.Stopped)) log.Abort();

            //log.Abort();
            //timer1.Enabled = false;
            //timer1.Dispose();

            eventLog1.WriteEntry("In OnStop");
            //mainFIAS.Stop();
        }
    }
}

EDIT 3: FIASMainClass.cs code:

        namespace UpdaterFIAS
        {
            class FIASMainClass
            {
                public FIASMainClass()
                { }

                public void Start()
                {
                    ServiceStarterThread = new Thread(ServiceStarter);
                    ServiceStarterThread.Start();
                }

                public void Stop()
                {
                    if (updater != null && (updater.ThreadState != System.Threading.ThreadState.Aborted && updater.ThreadState != System.Threading.ThreadState.Stopped)) updater.Abort();
                    if (log != null && (log.ThreadState != System.Threading.ThreadState.Aborted && log.ThreadState != System.Threading.ThreadState.Stopped)) log.Abort();
                }

                private void ServiceStarter()
                {
                ...
                }
    ...
    ...
    ...
    }
}

Answer 1

From you Stack Trace, the entry point is Program.Main . From there a new Updater is created and the getNameFiles is called. That would be the place to start.

As far as Debugging a windows service. You are right, this is indeed hard. There are two tricks I know. The first one is in the Main (or OnStart) to set a Thread.Sleep before you do anything. This way you have time to attach your debugger.

The other trick, is if your Visual Studio is on the same machine as your service, in the Main (or OnStart ) add this line: Debugger.Launch() . This will tell the service to seek out Visual Studio for a debugging session. See here for more: Debugger.Launch() on windows service in Windows 8