Simple Background Tasks for ASP.NET

Background.cs

//Easy Background tasks in ASP.NET projects
//Inspiration from http://blog.stackoverflow.com/2008/07/easy-background-tasks-in-aspnet/
//This code is added into the Global.asax file. In the Application_Start() method

private static CacheItemRemovedCallback OnCacheRemove = null;

protected void Application_start()
{
  //The register code that is put in here
  //Here is where you add all the tasks you want to start on application start
  AddTask("taskA", 60); //This will add and setup taskA to run every 60 seconds
  AddTask("taskB", 60 * 5); //This will add and setup taskB to run every 5 min
}

private AddTask(string taskName, int seconds)
{
  OnCacheRemove = new CacheItemRemovedCallback(CacheItemRemoved);
  HttpRuntime.Cache.Insert(taskName, seconds, null, DateTime.Now.AddSeconds(seconds), 
                          Cache.NoSlidingExpiration, CacheItemPriority.NotRemovable, OnCacheRemove); 
}

private void CacheItemRemoved(string task, object obj, CacheItemRemovedReason reason)
{
  switch(task)
  {
    case "taskA":
    //Call function to handle taskA stuff
    break;
    case "taskB":
    //Call fucntion to handle taskB stuff
  }
  
  AddTask(task, Convert.ToInt32(obj)) //readds the task to get run again in the set time
}