Using a timer

This recipe will describe how to use a System.Threading.Timer object to create periodically-called asynchronous operations on a thread pool.

Getting ready

To step into this recipe, you will need Visual Studio 2015. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter3\Recipe6.

How to do it...

To learn how to create periodically-called asynchronous operations on a thread pool, perform the following steps:

1. Start Visual Studio 2015. Create a new C# console application project.

2. In the Program.cs file, add the following using directives:

   using System;
   using System.Threading;
   using static System.Console;
   using static System.Threading.Thread;

3. Add the following code snippet below the Main method:

   static Timer _timer;
   
   static void TimerOperation(DateTime start)
   {
     TimeSpan elapsed = DateTime.Now - start;
     WriteLine($"{elapsed.Seconds} seconds from {start}. " +
       $"Timer thread pool thread id: {CurrentThread.ManagedThreadId}");
   }

4. Add the following...