In this post we will see a simple code example which illustrates how to use the ThreadPool to queue up tasks in a multi-threaded environment. We first need to create an object that contains information required for the task. This object will be passed as parameter to a task that is queued for execution by the thread pool.

private  void QueueWork(string parameter)
{

 // Instantiate  an object containing the information required for the task
   object[] obj = new object[3];
   obj[0] = "Work 1";
   obj[0] = "Work 2";
   obj[0] = "Work 3";

    //Queue the task and pass required data as paramaeter
   ThreadPool.QueueUserWorkItem(new System.Threading.ThreadPool.QueueUserWorkItem(DoWork) , obj);

}

// The thread performs the independent task

private  void DoWork(object workItem)
{
     object[] workList =(object[])workItem;

     // do the work as per details in workList 
}