Winform DataGridView列的单元格中动态添加图片和文字

先上图在说，第二列中图片和文字的样式

1、需要重写DataGridViewTextBoxColumn，新建类TextAndImageColumn.cs

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

namespace DataGridViewTest
{
    public class TextAndImageColumn : DataGridViewTextBoxColumn
    {
        private Image imageValue;
        private Size imageSize;

        public TextAndImageColumn()
        {
            this.CellTemplate = new TextAndImageCell();
        }

        public override object Clone()
        {
            TextAndImageColumn c = base.Clone() as TextAndImageColumn;
            c.imageValue = this.imageValue;
            c.imageSize = this.imageSize;
            return c;
        }

        public Image Image
        {
            get { return this.imageValue; }
            set
            {
                if (this.Image != value)
                {
                    this.imageValue = value;
                    this.imageSize = value.Size;

                    if (this.InheritedStyle != null)
                    {
                        Padding inheritedPadding = this.InheritedStyle.Padding;
                        this.DefaultCellStyle.Padding = new Padding(imageSize.Width,
                    inheritedPadding.Top, inheritedPadding.Right,
                    inheritedPadding.Bottom);
                    }
                }
            }
        }
        private TextAndImageCell TextAndImageCellTemplate
        {
            get { return this.CellTemplate as TextAndImageCell; }
        }
        internal Size ImageSize
        {
            get { return imageSize; }
        }
    }

    public class TextAndImageCell : DataGridViewTextBoxCell
    {
        private Image imageValue;
        private Size imageSize;

        public override object Clone()
        {
            TextAndImageCell c = base.Clone() as TextAndImageCell;
            c.imageValue = this.imageValue;
            c.imageSize = this.imageSize;
            return c;
        }

        public Image Image
        {
            get
            {
                if (this.OwningColumn == null ||
           this.OwningTextAndImageColumn == null)
                {

                    return imageValue;
                }
                else if (this.imageValue != null)
                {
                    return this.imageValue;
                }
                else
                {
                    return this.OwningTextAndImageColumn.Image;
                }
            }
            set
            {
                if (this.imageValue != value)
                {
                    this.imageValue = value;
                    this.imageSize = value.Size;

                    Padding inheritedPadding = this.InheritedStyle.Padding;
                    this.Style.Padding = new Padding(imageSize.Width,
                   inheritedPadding.Top, inheritedPadding.Right,
                   inheritedPadding.Bottom);
                }
            }
        }
        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)
        {
            // Paint the base content
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState,
              value, formattedValue, errorText, cellStyle,
              advancedBorderStyle, paintParts);

            if (this.Image != null)
            {
                // Draw the image clipped to the cell.
                System.Drawing.Drawing2D.GraphicsContainer container =
               graphics.BeginContainer();

                graphics.SetClip(cellBounds);
                graphics.DrawImageUnscaled(this.Image, cellBounds.Location);

                graphics.EndContainer(container);
            }
        }

        private TextAndImageColumn OwningTextAndImageColumn
        {
            get { return this.OwningColumn as TextAndImageColumn; }
        }
    }
}

2、新建窗体Form1.cs，拖控件DataGridView到窗体，代码如下

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace DataGridViewTest
{
    public partial class Form1 : Form
    {
        private static string imagePath = AppDomain.CurrentDomain.BaseDirectory.Substring(0, AppDomain.CurrentDomain.BaseDirectory.IndexOf("bin")) + "Images\";//列表图片路径
        public Form1()
        {
            InitializeComponent();
            InitControlsProperties();
        }

        private void InitControlsProperties()
        {
            this.dataGridView1.AutoGenerateColumns = false;
            TextAndImageColumn ColumnRoleID = new TextAndImageColumn();
            ColumnRoleID.DataPropertyName = "RoleID";
            ColumnRoleID.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
            ColumnRoleID.Name = "RoleID";
            ColumnRoleID.HeaderText = "权限ID";
            ColumnRoleID.Width = 200;
            this.dataGridView1.Columns.Add(ColumnRoleID);

            this.dataGridView1.AutoGenerateColumns = false;
            TextAndImageColumn ColumnRoleName = new TextAndImageColumn();
            ColumnRoleName.DataPropertyName = "RoleName";
            ColumnRoleName.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
            ColumnRoleName.Name = "RoleName";
            ColumnRoleName.HeaderText = "权限名称";
            ColumnRoleName.Width = 100;
            this.dataGridView1.Columns.Add(ColumnRoleName);

            this.dataGridView1.AutoGenerateColumns = false;
            TextAndImageColumn ColumnDescription = new TextAndImageColumn();
            ColumnDescription.DataPropertyName = "Description";
            ColumnDescription.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
            ColumnDescription.Name = "Description";
            ColumnDescription.HeaderText = "描述";
            ColumnDescription.Width = 150;
            this.dataGridView1.Columns.Add(ColumnDescription);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string strConn = "Data Source=XIAN-PC;Initial Catalog=ReportServer;Persist Security Info=True;User ID=sa;Password=sa";
            SqlConnection conn = new SqlConnection(strConn);
            string strSql = "select * from Roles";
            SqlCommand cmd = new SqlCommand(strSql, conn);
            SqlDataAdapter adapter = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            conn.Open();
            adapter.Fill(ds, "Roles");
            conn.Close();
            this.dataGridView1.DataSource = ds.Tables["Roles"];
        }

        private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            #region 第二列
            if (e.ColumnIndex == 1)
            {
                TextAndImageCell cell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex] as TextAndImageCell;
                if (cell != null && e.Value != null)
                {
                    try
                    {
                        string ajzt = cell.Value.ToString();
                        string path = imagePath;
                        switch (ajzt)
                        {
                            case "发布者":
                                path += "1.png";
                                break;
                            case "浏览者":
                                path += "2.png";
                                break;                            
                            default:
                                path += "3.png";
                                break;
                        }
                        cell.Image = GetImage(path);
                    }
                    catch (Exception ex)
                    {

                    }
                }
            }
            #endregion
        }

        public System.Drawing.Image GetImage(string path)
        {
            return System.Drawing.Image.FromFile(path);
        }

    }
}