学步园

 private void m_mapControl_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (b_getCoord)
            {
                Point2D point = m_mapControl.Map.PixelToMap(e.Location);
                GeoPoint geoPoint = new GeoPoint(point.X, point.Y);
                //这里也可以是GeoLine等几何对象

                //  m_mapControl.Map.TrackingLayer.Clear();      
          m_mapControl.Map.TrackingLayer.Add(geoPoint, "point");                
        m_mapControl.Map.RefreshTrackingLayer();            
            }       
       }