Keep C# application running

问题:

I'm building a Windows Service that uses FileSystemWatcher, and runs in the background.

I don't want to keep on uninstalling and installing the service every time I want to debug, so would like to do most of my development in a normal program before moving it into a service. But I'm quite new to this, and when I run it, it just runs through the block and exits.

What would be a good way to keep the program running?

回答1:

http://einaregilsson.com/run-windows-service-as-a-console-program/

I've used this before to debug my service as a Console application based on whether its running in an interactive user environment.

public partial class DemoService : ServiceBase
{
    static void Main(string[] args)
    {
        DemoService service = new DemoService();

        if (Environment.UserInteractive)
        {
            service.OnStart(args);
            Console.WriteLine("Press any key to stop program");
            Console.Read();
            service.OnStop();
        }
        else
        {
            ServiceBase.Run(service);
        }
    }

回答2:

while (true)
{
  // Execute your program's functionality here.
}

回答3:

I wrote a 7 part series a while ago titled: Building a Windows Service. It covers all the intricacies of building services, making them friendly to debug, and self-installing.

The basic feature set I was looking for was as follows:

• Building a service that can also be used from the console
• Proper event logging of service startup/shutdown and other activities
• Allowing multiple instances by using command-line arguments
• Self installation of service and event log
• Proper event logging of service exceptions and errors
• Controlling of start-up, shutdown and restart options
• Handling custom service commands, power, and session events
• Customizing service security and access control

The final result was a Visual Studio project template that creates a working service, complete with all of the above, in a single step. It's been a great time saver for me.

see Building a Windows Service – Part 7: Finishing touches for a link to the project template and install instructions.

回答4:

Here’s documentation from MSDN @ http://msdn.microsoft.com/en-us/library/7a50syb3(v=vs.80).aspx?ppud=4 . I have tried it before and it works under .NET Framework 3.x. I could not find my descriptive notes on it, at the moment.

Use the pragma #If DEBUG for debugging purposes like console outputs. Another is using the Debug object.

If you have any trouble with this, say so. I may be able to find my notes or make a Windows Service app myself, just to see if the steps on MSDN still work.