[C#] DataGridView 永遠顯示捲軸

class CustomDataGridView : DataGridView
    {
        public CustomDataGridView()
            : base()
        {
            VerticalScrollBar.Visible = true;
            VerticalScrollBar.VisibleChanged += new EventHandler(VerticalScrollBar_VisibleChanged);

            HorizontalScrollBar.Visible = true;
            HorizontalScrollBar.VisibleChanged += new EventHandler(HorizontalScrollBar_VisibleChanged);
        }

        void HorizontalScrollBar_VisibleChanged(object sender, EventArgs e)
        {
            if (!HorizontalScrollBar.Visible)
            {
                int height = ClientRectangle.Height;
                HorizontalScrollBar.Location = new Point(0, ClientRectangle.Height - HorizontalScrollBar.Height);
                HorizontalScrollBar.Size = new Size(ClientRectangle.Width - VerticalScrollBar.Width, HorizontalScrollBar.Height);
                HorizontalScrollBar.Show();
            }
        }

        void VerticalScrollBar_VisibleChanged(object sender, EventArgs e)
        {
            if (!VerticalScrollBar.Visible)
            {
                int width = VerticalScrollBar.Width;
                VerticalScrollBar.Location = new Point(ClientRectangle.Width - width, 1);
                VerticalScrollBar.Size = new Size(width, ClientRectangle.Height - HorizontalScrollBar.Height);
                VerticalScrollBar.Show();
            }
        }
    }