public void remove(DowjonesEventHandler handler)
 {
     this.handler-=handler;
 }
 public void RemoveHandler(DowjonesEventHandler handler)
 {
     this.subs.remove(handler);
 }
    private DowjonesEventHandler handler; //chain delegate

    #endregion Fields

    #region Methods

    public void add(DowjonesEventHandler handler)
    {
        this.handler+=handler;
    }
 public void AddHandler(DowjonesEventHandler handler )
 {
     this.subs.add(handler);
 }