public void RemoveHandler(events.LegendDoubleClickEvent d)
 {
     if (d != null)
     {
         m_LegendDoubleClick -= d;
     }
 }
 public void AddHandler(events.LegendDoubleClickEvent d)
 {
     if (d != null)
     {
         m_LegendDoubleClick += d;
     }
 }