using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace C
{
    /// <summary>
    /// 棋盘类
    /// </summary>
    class ChessBoard
    {
        public int line = 10;
        public int linespace = 30;
        public int margin = 30 / 2;
        public PictureBox picctrl;

        /// <summary>
        /// 画棋盘
        /// </summary>
        public void ShowChessBoard()
        {
            Pen Mypen = new Pen(Color.Green, 1);
            SolidBrush brush = new SolidBrush(Color.Gold);
            Bitmap bmp = new Bitmap(picctrl.Width,picctrl.Height);
            Graphics gr = Graphics.FromImage(bmp);

            //画横线
            for (int i = 0; i < line; i++)
            {
                gr.DrawLine(Mypen, margin, margin + linespace * i,
                    (line - 1) * linespace + margin, margin + linespace * i);

            }
            //画竖线
            for (int i = 0; i < line; i++)
            {
                gr.DrawLine(Mypen,linespace * i + margin, margin,
                    margin + linespace * i, (line - 1) * linespace + margin);
            }

            picctrl.BackgroundImage = bmp;
        }
    }
}
线已经画好(19*19的方格),现在想把这些线放到容器中(PictureBox)中,不知道怎么放了,麻烦各位兄弟帮帮忙!!!小弟感激不尽...

在picturebox的onpaint事件中去画。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Windows.Forms;

namespace GetHdc_Test
{
    /// <summary>
    /// 棋盘类
    /// </summary>
    public class ChessBoard
    {
        public int line = 10;
        public int linespace = 30;
        public int margin = 30 / 2;
        public PictureBox picctrl;

        public ChessBoard(PictureBox picbox)
        {
            picctrl = picbox;
        }

        /// <summary>
        /// 画棋盘
        /// </summary>
        public void ShowChessBoard()
        {
            Pen Mypen = new Pen(Color.Green, 1);
            SolidBrush brush = new SolidBrush(Color.Gold);
            Bitmap bmp = new Bitmap(picctrl.Width, picctrl.Height);
            Graphics gr = Graphics.FromImage(bmp);

            //画横线
            for (int i = 0; i < line; i++)
            {
                gr.DrawLine(Mypen, margin, margin + linespace * i,
                    (line - 1) * linespace + margin, margin+ linespace * i);

            }
            //画竖线
            for (int i = 0; i < line; i++)
            {
                gr.DrawLine(Mypen, linespace * i + margin, margin,
                    margin + linespace * i, (line - 1) * linespace + margin);
            }

            picctrl.BackgroundImage = bmp;
        }
    }

}

调用:

 ChessBoard cb = new ChessBoard(pictureBox1);

 cb.ShowChessBoard();

哥,  没找到picturebox的onpaint事件 ???

晕，不可以发附件了。

事件列表中，Paint

应该是Paint事件，查MSDN。

谢谢各位大哥,现在弄好了...
呵呵...