【转】winform中怎样使DataGridView的某一列可以添加两个Button控件

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本文介绍如何在DataGridView中自定义按钮列，实现删除、编辑及添加功能，并通过代码演示如何加载不同图片实现多样化按钮样式。

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转自：http://bbs.youkuaiyun.com/topics/330117383

问题已解决，思路是这样:分别创建三个新的按钮模板列，第一个显示删除图片，第二个显示编辑图片，第三个显示添加图片.看代码
第一个按钮模板列的代码：
using System;
using System.Windows.Forms;

namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonColumnDel : DataGridViewColumn
    {
        public DataGridViewButtonColumnDel()
        {
            this.CellTemplate = new DataGridViewButtonCellDel();
            this.HeaderText = "button";
        }
    }
}

using System;
using System.Windows.Forms;
using System.Drawing;
namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonCellDel : DataGridViewButtonCell
    {
        protected override void Paint(
    Graphics graphics,
    Rectangle clipBounds,
    Rectangle cellBounds,
    int rowIndex,
    DataGridViewElementStates cellState,
    object value,
    object formattedValue,
    string errorText,
    DataGridViewCellStyle cellStyle,
    DataGridViewAdvancedBorderStyle advancedBorderStyle,
    DataGridViewPaintParts paintParts)
        {
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
            Image _img = Properties.Resources.imgDelete_x16;
            graphics.DrawImage(_img, cellBounds.Location.X + 5, cellBounds.Location.Y+3, _img.Width, _img.Height);
        }
    }
}
第二个按钮模板列的代码：

using System;
using System.Windows.Forms;

namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonColumnEdi : DataGridViewColumn
    {
        public DataGridViewButtonColumnEdi()
        {
            this.CellTemplate = new DataGridViewButtonCellEdi();
            this.HeaderText = "button";
        }
    }
}

using System;
using System.Windows.Forms;
using System.Drawing;
namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonCellEdi : DataGridViewButtonCell
    {
        protected override void Paint(
    Graphics graphics,
    Rectangle clipBounds,
    Rectangle cellBounds,
    int rowIndex,
    DataGridViewElementStates cellState,
    object value,
    object formattedValue,
    string errorText,
    DataGridViewCellStyle cellStyle,
    DataGridViewAdvancedBorderStyle advancedBorderStyle,
    DataGridViewPaintParts paintParts)
        {
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
            Image _img = Properties.Resources.imgEdit_x16;
            graphics.DrawImage(_img, cellBounds.Location.X + 5, cellBounds.Location.Y + 3, _img.Width, _img.Height);
        }
    }
}

第三个按钮模板列的代码：
using System;
using System.Windows.Forms;

namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonColumnAdd : DataGridViewColumn
    {
        public DataGridViewButtonColumnAdd()
        {
            this.CellTemplate = new DataGridViewButtonCellAdd();
            this.HeaderText = "button";
        }
    }
}

using System;
using System.Windows.Forms;
using System.Drawing;
namespace 两列合并重绘列标题头
{
    public class DataGridViewButtonCellAdd : DataGridViewButtonCell
    {
        protected override void Paint(
    Graphics graphics,
    Rectangle clipBounds,
    Rectangle cellBounds,
    int rowIndex,
    DataGridViewElementStates cellState,
    object value,
    object formattedValue,
    string errorText,
    DataGridViewCellStyle cellStyle,
    DataGridViewAdvancedBorderStyle advancedBorderStyle,
    DataGridViewPaintParts paintParts)
        {
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
            Image _img = Properties.Resources.imgAdd_x16;
            graphics.DrawImage(_img, cellBounds.Location.X + 5, cellBounds.Location.Y + 3, _img.Width, _img.Height);
        }
    }
}

上面的代码几乎是一样的，就是红色部份载入了不同的图片。
图片是通过资源文件引入项目的。方法是：打开资源管理器，展开“Properties”节点（这个节点默认是隐藏的）。双击Resources.resx，点击"添加资源"，选择“添加现有资源”;添加三张图片:imgDelete_x16.png,imgEdit_x16,imgAdd_x16.png,

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maczhufengming

本版等级：

#33 得分：0 回复于： 2010-03-02 15:32:36

之后在form1上拖一个DataGridView1,给DataGridView1手动添加两列，分别是上面创建的DataGridViewButtonColumnDel，DataGridViewButtonCellEdi 这两个按钮模板列，ID分别为Column1,Column2;
form1的后台代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace 两列合并重绘列标题头
{
    public partial class Form1 : Form
    {
        int top = 0;
        int left = 0;
        int height = 0;
        int width1 = 0;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            BindDataGridView();
            HideCheckBoxCotrol();
            HideCheckBoxCotrol1();
        }
        /// <summary>
        /// 给DataGridView绑定测试数据
        /// </summary>
        private void BindDataGridView()
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Age", typeof(string));

            for (int i = 0; i < 5; i++)
            {
                    DataRow dr = dt.NewRow();
                    dr[0] = i.ToString();
                    dr[1] = i.ToString();
                    dt.Rows.Add(dr);

            }

            this.dataGridView1.DataSource = dt.DefaultView;

        }

        /// <summary>
        /// 把第一列和第二列的头部重绘一下，绘成一个表头
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {

            #region 重绘datagridview表头
            DataGridView dgv = (DataGridView)(sender);
            if (e.RowIndex == -1 && (e.ColumnIndex == 0 || e.ColumnIndex == 1))
            {
                if (e.ColumnIndex == 0)
                {
                    top = e.CellBounds.Top;
                    left = e.CellBounds.Left;
                    height = e.CellBounds.Height;
                    width1 = e.CellBounds.Width;
                }

                int width2 = this.dataGridView1.Columns[1].Width;

                Rectangle rect = new Rectangle(left, top, width1 + width2, e.CellBounds.Height);
                using (Brush backColorBrush = new SolidBrush(e.CellStyle.BackColor))
                {
                    //抹去原来的cell背景
                    e.Graphics.FillRectangle(backColorBrush, rect);
                }
                using (Pen pen = new Pen(Color.White))
                {
                    e.Graphics.DrawLine(pen, left + 1, top + 1, left + width1 + width2 - 1, top + 1);
                }
                using (Pen gridLinePen = new Pen(dgv.GridColor))
                {
                    e.Graphics.DrawLine(gridLinePen, left, top, left + width1 + width2, top);
                    e.Graphics.DrawLine(gridLinePen, left, top + height - 1, left + width1 + width2, top + height - 1);
                    e.Graphics.DrawLine(gridLinePen, left, top, left, top + height);
                    e.Graphics.DrawLine(gridLinePen, left + width1 + width2 - 1, top, left + width1 + width2 - 1, top + height);

                    //计算绘制字符串的位置
                    string columnValue = "";
                    SizeF sf = e.Graphics.MeasureString(columnValue, e.CellStyle.Font);
                    float lstr = (width1 + width2 - sf.Width) / 2;
                    float rstr = (height / 2 - sf.Height);
                    //画出文本框

                    if (columnValue != "")
                    {
                        e.Graphics.DrawString(columnValue, e.CellStyle.Font,
                                                   new SolidBrush(e.CellStyle.ForeColor),
                                                     left + lstr,
                                                     top + rstr,
                                                     StringFormat.GenericDefault);
                    }

                }
                e.Handled = true;

            }
            #endregion
        }
        /// <summary>
        /// 最后一行的第一列单元格中的DataGridViewButtonColumnDel按钮模板换
        /// 成系统的DataGridViewButtonCellAdd
        /// </summary>
        private void HideCheckBoxCotrol()
        {
            DataGridViewButtonCellAdd dvcType1 = new DataGridViewButtonCellAdd();
            dataGridView1.Rows[5].Cells["Column1"] = dvcType1;

        }
        /// <summary>
        /// 最后一行的第二列单元格中的DataGridViewButtonColumnEdi按钮模板换
        /// 成系统的DataGridViewTextBoxCell
        /// </summary>
        private void HideCheckBoxCotrol1()
        {
            DataGridViewCell dvcType = new DataGridViewTextBoxCell();
            dataGridView1.Rows[5].Cells["Column2"] = dvcType;

        }
    }
}

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aideng aideng 本版等级：	#34 得分：0 回复于： 2010-03-03 09:21:25 收藏了，以后好好学习一下
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