private void buttonZoomIn_Click(object sender, RoutedEventArgs e)
 {
     if (lcp == null)
     {
         SilverlightLFC.common.Environment.ShowMessage("未将按钮和测试对象关联!"); return;
     }
     ClearActiveAll();
     lcp.Zoom(1.2);
     if (PhotoOperate != null)
     {
         PhotoOperate("ZoomIn", lcp.getPhoto());
     }
 }