C# 启用双缓存,避免ListView控件加载数据时闪烁

可以用以下方法，已经测试：  
  public   class   CustomListView   :   ListView  
  {  
          public   CustomListView()  
          {  
                  SetStyle(ControlStyles.DoubleBuffer   |    
                                    ControlStyles.OptimizedDoubleBuffer   |    
                                    ControlStyles.AllPaintingInWmPaint,    
                                    true);  
                  UpdateStyles();  
          }  
   
  }

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