datagridview在winform的框架里面就和html里面的table一样。
但不同的是，原生的datagridview里面并没有操作列这个概念，默认的列类型 有下拉框、文本、按钮、图片、链接这几类，如果需要其他的样式还需要重新写。
其实大部分需求都是如图的效果，当然你使用了别的组件【不是官方自带】，可能实现如图的效果很简单
下面讲讲如图==》操作列 有多个按钮的不同实现方式
1.1 方式一
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms; namespace chao.net{ public partial class FormTest2 : Form { public FormTest2() { InitializeComponent(); } private void toolStripLabel1_Click(object sender, EventArgs e) { } private void FormTest2_Load(object sender, EventArgs e) { this.dataGridView1.AutoGenerateColumns = false;; this.dataGridView1.CellMouseClick += dataGridView1_CellMouseClick; this.dataGridView1.CellPainting += dataGridView1_CellPainting; this.dataGridView1.Rows.Add(); } /// <summary> /// 单元格重绘 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e) { if (e.ColumnIndex >= 0 && e.RowIndex >= 0) { if (this.dataGridView1.Columns[e.ColumnIndex].HeaderText == "操作") { StringFormat sf = StringFormat.GenericDefault.Clone() as StringFormat;//设置重绘入单元格的字体样式 sf.FormatFlags = StringFormatFlags.DisplayFormatControl; sf.Alignment = StringAlignment.Center; sf.LineAlignment = StringAlignment.Center; sf.Trimming = StringTrimming.EllipsisCharacter; //e.PaintContent e.PaintBackground(e.CellBounds, false);//重绘边框 //设置要写入字体的大小 System.Drawing.Font myFont = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Underline, System.Drawing.GraphicsUnit.Point, ((byte)(134))); //myFon SizeF sizeDel = e.Graphics.MeasureString("删除", myFont); SizeF sizeMod = e.Graphics.MeasureString("修改", myFont); SizeF sizeLook = e.Graphics.MeasureString("查看", myFont); float fDel = sizeDel.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); // float fMod = sizeMod.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); float fLook = sizeLook.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); //设置每个“按钮的边界” RectangleF rectDel = new RectangleF(e.CellBounds.Left, e.CellBounds.Top, e.CellBounds.Width * fDel, e.CellBounds.Height); RectangleF rectMod = new RectangleF(rectDel.Right, e.CellBounds.Top, e.CellBounds.Width * fMod, e.CellBounds.Height); RectangleF rectLook = new RectangleF(rectMod.Right, e.CellBounds.Top, e.CellBounds.Width * fLook, e.CellBounds.Height); e.Graphics.DrawString("删除", myFont, Brushes.Black, rectDel, sf); //绘制“按钮” e.Graphics.DrawString("修改", myFont, Brushes.Black, rectMod, sf); e.Graphics.DrawString("查看", myFont, Brushes.Black, rectLook, sf); e.Handled = true; } } } /// <summary> /// 鼠标点击事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e) { if (e.ColumnIndex >= 0 && e.RowIndex >= 0) { Point curPosition = e.Location;//当前鼠标在当前单元格中的坐标 if (this.dataGridView1.Columns[e.ColumnIndex].HeaderText == "操作") { //this.dataGridView1.Columns[e.ColumnIndex].Add Graphics g = this.dataGridView1.CreateGraphics(); System.Drawing.Font myFont = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Underline, System.Drawing.GraphicsUnit.Point, ((byte)(134))); SizeF sizeDel = g.MeasureString("删除", myFont); SizeF sizeMod = g.MeasureString("修改", myFont); SizeF sizeLook = g.MeasureString("查看", myFont); float fDel = sizeDel.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); float fMod = sizeMod.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); float fLook = sizeLook.Width / (sizeDel.Width + sizeMod.Width + sizeLook.Width); Rectangle rectTotal = new Rectangle(0, 0, this.dataGridView1.Columns[e.ColumnIndex].Width, this.dataGridView1.Rows[e.RowIndex].Height); RectangleF rectDel = new RectangleF(rectTotal.Left, rectTotal.Top, rectTotal.Width * fDel, rectTotal.Height); RectangleF rectMod = new RectangleF(rectDel.Right, rectTotal.Top, rectTotal.Width * fMod, rectTotal.Height); RectangleF rectLook = new RectangleF(rectMod.Right, rectTotal.Top, rectTotal.Width * fLook, rectTotal.Height); //判断当前鼠标在哪个“按钮”范围内 if (rectDel.Contains(curPosition))//删除 MessageBox.Show("点击删除按钮"); else if (rectMod.Contains(curPosition))//修改 MessageBox.Show("点击修改按钮"); else if (rectLook.Contains(curPosition))//查看 MessageBox.Show("点击查看按钮"); } } } private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e) { } }}
主要方法是：dataGridView1_CellPainting 就是重新绘制单元格。代码在FormTest2.cs里面，进入链接在最下面。
效果：
1.2 方式二
使用右键菜单==》也可套用点击行里面的按钮显示菜单。【学会举一反三就行】
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms; namespace chao.net{ public partial class FormTest3 : Form { public FormTest3() { InitializeComponent(); } private void FormTest3_Load(object sender, EventArgs e) { this.dataGridView1.AutoGenerateColumns = false; ; this.dataGridView1.MouseClick += dataGridView1_MouseClick; this.dataGridView1.Rows.Add(); } /// <summary> /// stripItem0点击事件-删除选中行 /// </summary> private void stripItems0_Click(object sender, EventArgs e) { MessageBox.Show("-删除选中行--"); } private void dataGridView1_MouseClick(object sender, MouseEventArgs e) { ContextMenuStrip strip = new ContextMenuStrip(); strip.ShowImageMargin = false;//设置右击菜单属性 strip.Items.Add("删除选定行"); strip.Items.Add("添加行"); strip.Items[0].Click += stripItems0_Click;//弹出菜单第一项点击事件 strip.Items[1].Click += stripItems1_Click;//弹出菜单第二项点击事件 if (e.Button == MouseButtons.Right)//右键点击 { strip.Show(this.dataGridView1, e.Location);//弹出菜单 } } /// <summary> /// 弹出菜单第二项点击事件 /// </summary> private void stripItems1_Click(object sender, EventArgs e) { MessageBox.Show("-添加行-"); } }}
解释：主要方法是：dataGridView1_MouseClick，这边判断是否右键点击【操作请在datagridview里面右键点击】。代码在FormTest3.cs里面，进入链接在最下面。【其实这种思维更适合客户端，网页和桌面应用还是有区别的】
效果：
1.3 方式三
是我参考网上一些固有样式，写出的一个动态的操作列，可以适合权限管理【按钮】。推荐使用。当然可能有些小问题，暂时我还没发现。这种样式和后端管理的操作列类似。如果按钮超出列的宽度，请设置合适的该列的宽度。
using chao.net.UIL;using chao.net.UIL.UserControls;using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing; using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms; namespace chao.net{ public partial class FormTest : Form { public FormTest() { InitializeComponent(); } private void FormTest_Load(object sender, EventArgs e) { this.dataGridView1.AutoGenerateColumns = false; DataGridViewActionButtonColumn dataGridViewColumn = new DataGridViewActionButtonColumn(); dataGridViewColumn.Width = 240; dataGridViewColumn.HeaderText = "操作列2"; dataGridViewColumn.Resizable = DataGridViewTriState.False; this.dataGridView1.Columns.Add(dataGridViewColumn); /* DataGridViewDetailButtonColumn buttonColumn = new DataGridViewDetailButtonColumn(); buttonColumn.HeaderText = "操作列3"; this.dataGridView1.Columns.Add(buttonColumn);*/ this.dataGridView1.Rows.Add(); /* this.dataGridView1.RowHeadersVisible = true; this.dataGridView1.ColumnHeadersVisible = true;*/ } private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e) { if (this.dataGridView1.Columns[e.ColumnIndex].HeaderText == "操作列2") { DataGridViewActionButtonColumn dataGridViewColumn = (DataGridViewActionButtonColumn)this.dataGridView1.Columns[e.ColumnIndex]; //DataGridViewActionButtonCell dataGridViewActionButtonCell = (DataGridViewActionButtonCell)dataGridViewColumn.CellTemplate; List<ActionButton> buttonList = dataGridViewColumn.ButtonList; foreach(ActionButton act in buttonList){ if (act.MouseOnButton)//此时鼠标悬浮在上面 { Console.WriteLine("点击了:" + act.Name); //MessageBox.Show("点击了:"+act.Name); } } } } }}
解释：主要方法是：FormTest_Load 和 dataGridView1_MouseClick，FormTest_Load 主要是自定义单元格，dataGridView1_MouseClick是点击判断点击的按钮区域进而做业务处，需要使用自定义的列DataGridViewActionButtonColumn和自定义的单元格DataGridViewActionButtonCell。代码在FormTest.cs里面，进入链接在最下面。【其实这种思维更适合客户端，网页和桌面应用还是有区别的】
效果：
源代码:https://gitee.com/ten-ken/csharp-demo-code/tree/master/chao.net
[暂时不对外开放，等过段时间]
本文来源于：宋文超super，专属平台有csdn、思否(SegmentFault)、 简书、 开源中国(oschina)，转载请注明出处。
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