How to pass a parameter to windows service from client machine

Question

I want to write error log from windows service. I know to call a customcommand from windows service, but it will not allow any parameters. I want to pass my error message to service and the customcommand will write the log. How can I do it. I tried something

I have created a static string variable in my library class. Whenever an error occurs I am calling the function like

ATELib.AteBAC.getErrorMessage = "error message from client";
ServiceController Controller = new ServiceController("ATELogsService");
if (Controller.Status == ServiceControllerStatus.Running)
{
    Controller.ExecuteCommand(128);
}

and the code in my service is

protected override void OnCustomCommand(int command)
{
    if (command == 128)
    {
        using (System.IO.StreamWriter file = new System.IO.StreamWriter(Application.StartupPath + @"\ATELogCheck.txt", true))
        {
            file.WriteLine(ATELib.AteBAC.getErrorMessage);
            ATELib.AteBAC.getErrorMessage = null;
        }
    }
}

it is creating the errorlog file(ATELogCheck.txt) but the error message(string value) is not there in the file, creating an empty txt file. It is a static variable even why it is writterning empty. I am using tcp protocol and calling the service object as

baCls = (ATELib.AteBAC)Activator.GetObject(typeof(ATELib.AteBAC), "tcp://localhost:9090/ATE");

How can I pass the string value to the service?

Answer 1

Because your service runs in different domain from your application. So the ATELib.AteBAC.getErrorMessage in your application is different from ATELib.AteBAC.getErrorMessage in your service.

I honestly think, if you have to do something like this, you have issues in the design of your application. The service is really there to do something continuously. Or, it can "sleep" and listen to TCP port. Once signal received, it can find work and execute. Definitely, look into design first, before going into unneeded complexities.