C#

public enum RefreshRate<code> : int</code>
{
fast = 100, 
medium = 500,
slow = 1000
}

oThread.Sleep(RefreshRate.fast);

theThread.theEvent += new EventHandler(this.ThreadIsDone);
 
....
 
private void ThreadIsDone(object sender, EventArgs e)
{
  // Returns true if not running on the GUI thread
  if( InvokeRequired ) 
  {
    Invoke(
       new EventHandler(this.ThreadIsDone), 
       new object [] { sender, e }
    );
    return;
  }
 
  // Code to run when the Thread is done
}

public MyType this[int index] {
  get { return (MyType)this.myArrayList[index]; }
  set { return this.myArrayList[index] = value; }
}

object IList.this[int index] {
  get { return this.myArrayList[index]; }
  set { return this.myArrayList[index] = value; }
}