如何将数据从安装程序 class 传递到 windows 服务的 OnStart() 方法

Question

[RunInstaller(true)]
public partial class AttendanceInstaller : Installer
{
   public string idString;
   public string hoursString;
 
   public AttendanceInstaller()
   {
       InitializeComponent();
   }
   
   public override void Install(IDictionary stateSaver)
   {
      base.Install(stateSaver);
      idString = Context.Parameters["DeviceID"];
      hoursString = Context.Parameters["Hours"];
    }    
}

    
public partial class Attendance : ServiceBase
{
   protected override void OnStart(string[] args)
   {
   
   }
}

I need to use idString variable of the AttendanceInstaller class in the onStart() method. How can I do? Thanks for your help.

Answer 1

I'm taking the risk of writing an answer but providing no solution. I believe what you are trying is not possible. At least, in an immediate sense. Your class AttendanceInstaller inherits from Installer. The Installer class is used to install the service. It may get executed once. Your class Attendance inherits from ServiceBase. It implements a service by overriding the OnStart method. The OnStart method is called when the service is started through the Service Control Manager. So you have two separated classes (intances if being purist) that may never share scope. So you should find an alternative way of passing data, perhaps with a file on disk.