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

今天在网上逛的时候，看到了一个童靴提的这个问题，看了帖子，发现楼主最终给出了自己的解决方案，感觉还不错，因此将帖子的内容整理了下，转出来了

解决方案的思路是这样: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,

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;

}

}

}