今天在網上逛的時候，看到了一個童靴提的這個問題，看了帖子，發現樓主最終給出了自己的解決方案，感覺還不錯，因此將帖子的內容整理了下，轉出來了
解決方案的思路是這樣:分別創建三個新的按鈕模板列，第一個顯示刪除圖片，第二個顯示編輯圖片，第三個顯示添加圖片.看代碼
第一個按鈕模板列的代碼：
using System;
using System.Windows.Forms;
namespace 兩列合並重繪列標題頭
{
public class DataGridViewButtonColumnDel : DataGridViewColumn
{
public DataGridViewButtonColumnDel()
{
this.CellTemplate = new DataGridViewButtonCellDel();
this.HeaderText = "button";
}
}
}
using System;
using System.Windows.Forms;
using System.Drawing;
namespace 兩列合並重繪列標題頭
{
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);
}
}
}
第二個按鈕模板列的代碼：
using System;
using System.Windows.Forms;
namespace 兩列合並重繪列標題頭
{
public class DataGridViewButtonColumnEdi : DataGridViewColumn
{
public DataGridViewButtonColumnEdi()
{
this.CellTemplate = new DataGridViewButtonCellEdi();
this.HeaderText = "button";
}
}
}
using System;
using System.Windows.Forms;
using System.Drawing;
namespace 兩列合並重繪列標題頭
{
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);
}
}
}
第三個按鈕模板列的代碼：
using System;
using System.Windows.Forms;
namespace 兩列合並重繪列標題頭
{
public class DataGridViewButtonColumnAdd : DataGridViewColumn
{
public DataGridViewButtonColumnAdd()
{
this.CellTemplate = new DataGridViewButtonCellAdd();
this.HeaderText = "button";
}
}
}
using System;
using System.Windows.Forms;
using System.Drawing;
namespace 兩列合並重繪列標題頭
{
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);
}
}
}
上面的代碼幾乎是一樣的，就是紅色部份載入了不同的圖片。
圖片是通過資源文件引入項目的。方法是：打開資源管理器，展開“Properties”節點（這個節點默認是隱藏的）。雙擊Resources.resx，點擊"添加資源"，選擇“添加現有資源”;添加三張圖片:imgDelete_x16.png,imgEdit_x16,imgAdd_x16.png,
之后在form1上拖一個DataGridView1,給DataGridView1手動添加兩列，分別是上面創建的DataGridViewButtonColumnDel，DataGridViewButtonCellEdi 這兩個按鈕模板列，ID分別為Column1,Column2;
form1的后台代碼如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace 兩列合並重繪列標題頭
{
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>
/// 給DataGridView綁定測試數據
/// </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頭部重繪一下，繪成一個表頭
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
#region 重繪datagridview表頭
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))
{
//抹去原來的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);
//計算繪制字符串的位置
string columnValue = "";
SizeF sf = e.Graphics.MeasureString(columnValue, e.CellStyle.Font);
float lstr = (width1 + width2 - sf.Width) / 2;
float rstr = (height / 2 - sf.Height);
//畫出文本框
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>
/// 最后一行的第一列單元格中的DataGridViewButtonColumnDel按鈕模板換
/// 成系統的DataGridViewButtonCellAdd
/// </summary>
private void HideCheckBoxCotrol()
{
DataGridViewButtonCellAdd dvcType1 = new DataGridViewButtonCellAdd();
dataGridView1.Rows[5].Cells["Column1"] = dvcType1;
}
/// <summary>
/// 最后一行的第二列單元格中的DataGridViewButtonColumnEdi按鈕模板換
/// 成系統的DataGridViewTextBoxCell
/// </summary>
private void HideCheckBoxCotrol1()
{
DataGridViewCell dvcType = new DataGridViewTextBoxCell();
dataGridView1.Rows[5].Cells["Column2"] = dvcType;
}
}
}