tableLayoutPanel小问题!

Question

public class DemoTableLayoutPanel : TableLayoutPanel
{
protected override void OnCellPaint(TableLayoutCellPaintEventArgs e)
{
base.OnCellPaint(e);        Control c = this.GetControlFromPosition(e.Column, e.Row);        if ( c != null )
        {
            Graphics g = e.Graphics;            g.DrawRectangle(
Pens.Red, 
e.CellBounds.Location.X+1,
e.CellBounds.Location.Y + 1,
e.CellBounds.Width - 2, e.CellBounds.Height - 2); g.FillRectangle(
Brushes.Blue, 
e.CellBounds.Location.X + 1, 
e.CellBounds.Location.Y + 1, 
e.CellBounds.Width - 2, 
e.CellBounds.Height - 2);
        };
}}这是微软的代码 我在form1里加了个 tableLayoutPanel有在 form1类后并上它 怎么它没有反映!!

Answer 1

自定义控件，继承TableLayoutPanel
生产DLL添加到form中

Answer 2

        private void tableLayoutPanel1_CellPaint(object sender, TableLayoutCellPaintEventArgs e)
        {           
            Graphics g = e.Graphics;            g.DrawRectangle(
                Pens.Red,
                e.CellBounds.Location.X + 1,
                e.CellBounds.Location.Y + 1,
                e.CellBounds.Width - 2, e.CellBounds.Height - 2);            g.FillRectangle(
                Brushes.Blue,
                e.CellBounds.Location.X + 1,
                e.CellBounds.Location.Y + 1,
                e.CellBounds.Width - 2,
                e.CellBounds.Height - 2);        }
你+这个事件不完事了!!

Answer 3

protected override 就是要 重写