In this post, we will see how to use Timers in C#.net and VB.net. Example uses ElapsedEventHandler event handler. You can use timers to keep windows service running. Let's see both C#.net and VB.net examples of Timers in .net.

Timers in [C#] example

Timers in C#: we will use System.Timers namespace to create an instance of Timer.

using System;
using System.Timers;
namespace Csharp.TimerExample
{
  class Program
  {
    static void Main(string[] args)
    {
      Timer t = new Timer(1000);
      t.Elapsed += new ElapsedEventHandler(t_Elapsed);
      t.Start();
      Console.ReadLine();
    }
    static void t_Elapsed(object sender, ElapsedEventArgs e)
    {
      Console.WriteLine(DateTime.Now.ToString());
    }
  }
}

To the constructor of Timer, we have passed 1000 milliseconds. Every occurrence of elapsed time interval it calls a method t_Elapsed. Where we are printing current Datetime values

(Vb.net) Timers example

Imports System.Text
Imports System.Timers
Namespace Csharp.TimerExample
Class Program
Private Shared Sub Main(args As String())
Dim t As New Timer(1000)
AddHandler t.Elapsed, New ElapsedEventHandler(AddressOf t_Elapsed)
t.Start()
Console.ReadLine()
End Sub
Private Shared Sub t_Elapsed(sender As Object, e As ElapsedEventArgs)
Console.WriteLine(DateTime.Now.ToString())
End Sub
End Class
End Namespace

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It's very simple example of C# using Timers. Every tick of 1000 milliseconds, Attached event handler calls the given function. You can use Timers tick event to keep your windows service running.