dataGridView拖動數據刷新慢問題

        public FrmMain()
        {   
            //設置窗體的雙緩衝
            this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.AllPaintingInWmPaint, true);
            this.UpdateStyles();

            InitializeComponent();

            //利用反射設置DataGridView的雙緩衝
            Type dgvType = this.dataGridView1.GetType();
            PropertyInfo pi = dgvType.GetProperty("DoubleBuffered",BindingFlags.Instance | BindingFlags.NonPublic);
            pi.SetValue(this.dataGridView1, true, null);
        }