How to make custom Task Scheduler in asp.net c# using thread

In asp.net there are needs for performing few activities periodically. For that  we can use some class libraries or third party component to schedule a task or function to execute periodically.

Recently i found following simplest way to execute periodically any code.

Suppose you have  a class and routine as follow in App_Code/CS,

public class ClassABC
{
public static void SomeFunctionToRunPeriodically()
{
try
{
System.IO.File.WriteAllText(System.Web.Hosting.HostingEnvironment.MapPath(“~/LatestRunSaved.txt”), “Last Run of function at : ” + DateTime.Now.ToString() + Environment.NewLine);
}
catch (Exception ex)
{
string t = ex.Message;
}
System.Threading.Thread.Sleep(20000);
SomeFunctionToRunPeriodically();    //calling self after interval

}
public ClassABC()
{
//
// TODO: Add constructor logic here
//
}
}

If you notice in above function then its calling to itself after interval.

Now in global application file ‘global.asax’  inside application start event use following lines to create a new thread based call to a function above.

void Application_Start(object sender, EventArgs e)
{
System.Threading.Thread obj = new System.Threading.Thread(new System.Threading.ThreadStart(ClassABC.SomeFunctionToRunPeriodically));
obj.Name = “AnyTestName”;
obj.IsBackground = true;
obj.Start();
}

New thread based function call will run until your application is running in IIS process, It is a background process. Other routine things on site will work normally without problem.

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