To define what happens when the service starts, in the code editor, locate the OnStart method that was automatically overridden when you created the project, and write code to determine what occurs when the service begins running:. The OnStart method must return to the operating system once the service's operation has begun.
It must not loop forever or block. To set up a simple polling mechanism, you can use the System. Timer component. In the OnStart method, you would set parameters on the component, and then you would set the Timer. Enabled property to true. The timer would then raise events in your code periodically, at which time your service could do its monitoring. To define what happens when the service is stopped, in the code editor, locate the OnStop procedure that was automatically overridden when you created the project, and write code to determine what occurs when the service is stopped:.
You can also override the OnPause , OnContinue , and OnShutdown methods to define further processing for your component. For the method you want to handle, override the appropriate method and define what you want to occur.
The following code shows what it looks like if you override the OnContinue method:. Some custom actions need to occur when installing a Windows service, which can be done by the Installer class. Visual Studio can create these installers specifically for a Windows service and add them to your project. Windows services are usually started when an operating system boots and scheduled to run in the background to execute some tasks.
Windows services can also be started automatically or manually. You can also manually pause, stop and restart Windows services. Windows service is a computer program that runs in the background to execute some tasks. Some examples of Windows services are auto-update of Windows, check emails, print documents, SQL Server agent, file and folder scanning and indexing and so on.
If you open your Task Manager and click on the Services tab, you will see hundreds of services running on your machine. You can also see the statuses of these services. Some services are running, some have paused, and some have stopped.
You can start, stop, and pause a service from here by right click on the service. How to create a Windows service in C? Very important: Don't ever try to call any method before the call of InitializeComponent method.
LocalSystem; You also can add description and display service name optionally. Demo" ; Step 8 In this step, we will implement a timer, and code to call the service at a given time. We will create a text file and write the current time in the text file using the service. Generic; using System. ComponentModel; using System. Data; using System. StackTrace ; CommonService. LogError "Service stopped now at! We used CommonService. StartupPath ; if LogFile!
NewLine, DateTime. GetBytes Message ; System. FileStream LogFile, System. OpenOrCreate, System. Write, System. Write ; logFile. Seek 0, System. End ; logFile. Write binLogString, 0, binLogString. Length ; logFile. Worked with Metaoption LLC, for more than 9 years and still with the same company.
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