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
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Windows.Forms;
6 using System.Drawing;
7
8 namespace DataGridViewTest
9 {
10 public class TextAndImageColumn : DataGridViewTextBoxColumn
11 {
12 private Image imageValue;
13 private Size imageSize;
14
15 public TextAndImageColumn()
16 {
17 this.CellTemplate = new TextAndImageCell();
18 }
19
20 public override object Clone()
21 {
22 TextAndImageColumn c = base.Clone() as TextAndImageColumn;
23 c.imageValue = this.imageValue;
24 c.imageSize = this.imageSize;
25 return c;
26 }
27
28 public Image Image
29 {
30 get { return this.imageValue; }
31 set
32 {
33 if (this.Image != value)
34 {
35 this.imageValue = value;
36 this.imageSize = value.Size;
37
38 if (this.InheritedStyle != null)
39 {
40 Padding inheritedPadding = this.InheritedStyle.Padding;
41 this.DefaultCellStyle.Padding = new Padding(imageSize.Width,
42 inheritedPadding.Top, inheritedPadding.Right,
43 inheritedPadding.Bottom);
44 }
45 }
46 }
47 }
48 private TextAndImageCell TextAndImageCellTemplate
49 {
50 get { return this.CellTemplate as TextAndImageCell; }
51 }
52 internal Size ImageSize
53 {
54 get { return imageSize; }
55 }
56 }
57
58 public class TextAndImageCell : DataGridViewTextBoxCell
59 {
60 private Image imageValue;
61 private Size imageSize;
62
63 public override object Clone()
64 {
65 TextAndImageCell c = base.Clone() as TextAndImageCell;
66 c.imageValue = this.imageValue;
67 c.imageSize = this.imageSize;
68 return c;
69 }
70
71 public Image Image
72 {
73 get
74 {
75 if (this.OwningColumn == null ||
76 this.OwningTextAndImageColumn == null)
77 {
78
79 return imageValue;
80 }
81 else if (this.imageValue != null)
82 {
83 return this.imageValue;
84 }
85 else
86 {
87 return this.OwningTextAndImageColumn.Image;
88 }
89 }
90 set
91 {
92 if (this.imageValue != value)
93 {
94 this.imageValue = value;
95 this.imageSize = value.Size;
96
97 Padding inheritedPadding = this.InheritedStyle.Padding;
98 this.Style.Padding = new Padding(imageSize.Width,
99 inheritedPadding.Top, inheritedPadding.Right,
100 inheritedPadding.Bottom);
101 }
102 }
103 }
104 protected override void Paint(Graphics graphics, Rectangle clipBounds,
105 Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState,
106 object value, object formattedValue, string errorText,
107 DataGridViewCellStyle cellStyle,
108 DataGridViewAdvancedBorderStyle advancedBorderStyle,
109 DataGridViewPaintParts paintParts)
110 {
111 // Paint the base content
112 base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState,
113 value, formattedValue, errorText, cellStyle,
114 advancedBorderStyle, paintParts);
115
116 if (this.Image != null)
117 {
118 // Draw the image clipped to the cell.
119 System.Drawing.Drawing2D.GraphicsContainer container =
120 graphics.BeginContainer();
121
122 graphics.SetClip(cellBounds);
123 graphics.DrawImageUnscaled(this.Image, cellBounds.Location);
124
125 graphics.EndContainer(container);
126 }
127 }
128
129 private TextAndImageColumn OwningTextAndImageColumn
130 {
131 get { return this.OwningColumn as TextAndImageColumn; }
132 }
133 }
134 }
2、新建窗体Form1.cs，拖控件DataGridView到窗体，代码如下
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Data;
5 using System.Drawing;
6 using System.Linq;
7 using System.Text;
8 using System.Windows.Forms;
9 using System.Data.SqlClient;
10
11 namespace DataGridViewTest
12 {
13 public partial class Form1 : Form
14 {
15 private static string imagePath = AppDomain.CurrentDomain.BaseDirectory.Substring(0, AppDomain.CurrentDomain.BaseDirectory.IndexOf("bin")) + "Images\\";//列表图片路径
16 public Form1()
17 {
18 InitializeComponent();
19 InitControlsProperties();
20 }
21
22 private void InitControlsProperties()
23 {
24 this.dataGridView1.AutoGenerateColumns = false;
25 TextAndImageColumn ColumnRoleID = new TextAndImageColumn();
26 ColumnRoleID.DataPropertyName = "RoleID";
27 ColumnRoleID.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
28 ColumnRoleID.Name = "RoleID";
29 ColumnRoleID.HeaderText = "权限ID";
30 ColumnRoleID.Width = 200;
31 this.dataGridView1.Columns.Add(ColumnRoleID);
32
33 this.dataGridView1.AutoGenerateColumns = false;
34 TextAndImageColumn ColumnRoleName = new TextAndImageColumn();
35 ColumnRoleName.DataPropertyName = "RoleName";
36 ColumnRoleName.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
37 ColumnRoleName.Name = "RoleName";
38 ColumnRoleName.HeaderText = "权限名称";
39 ColumnRoleName.Width = 100;
40 this.dataGridView1.Columns.Add(ColumnRoleName);
41
42 this.dataGridView1.AutoGenerateColumns = false;
43 TextAndImageColumn ColumnDescription = new TextAndImageColumn();
44 ColumnDescription.DataPropertyName = "Description";
45 ColumnDescription.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
46 ColumnDescription.Name = "Description";
47 ColumnDescription.HeaderText = "描述";
48 ColumnDescription.Width = 150;
49 this.dataGridView1.Columns.Add(ColumnDescription);
50 }
51
52 private void Form1_Load(object sender, EventArgs e)
53 {
54 string strConn = "Data Source=XIAN-PC;Initial Catalog=ReportServer;Persist Security Info=True;User ID=sa;Password=sa";
55 SqlConnection conn = new SqlConnection(strConn);
56 string strSql = "select * from Roles";
57 SqlCommand cmd = new SqlCommand(strSql, conn);
58 SqlDataAdapter adapter = new SqlDataAdapter(cmd);
59 DataSet ds = new DataSet();
60 conn.Open();
61 adapter.Fill(ds, "Roles");
62 conn.Close();
63 this.dataGridView1.DataSource = ds.Tables["Roles"];
64 }
65
66 private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
67 {
68 #region 第二列
69 if (e.ColumnIndex == 1)
70 {
71 TextAndImageCell cell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex] as TextAndImageCell;
72 if (cell != null && e.Value != null)
73 {
74 try
75 {
76 string ajzt = cell.Value.ToString();
77 string path = imagePath;
78 switch (ajzt)
79 {
80 case "发布者":
81 path += "1.png";
82 break;
83 case "浏览者":
84 path += "2.png";
85 break;
86 default:
87 path += "3.png";
88 break;
89 }
90 cell.Image = GetImage(path);
91 }
92 catch (Exception ex)
93 {
94
95 }
96 }
97 }
98 #endregion
99 }
100
101 public System.Drawing.Image GetImage(string path)
102 {
103 return System.Drawing.Image.FromFile(path);
104 }
105
106 }
107 }
时间： 2024-10-05 17:17:50