winform 中 给DataGridView的表头添加CheckBox

在C/S架构中，给DataGridView的表头添加CheckBox控件：

添加类：

1. /// <summary>
2.     /// 给DataGridView添加全选
3.     /// </summary>
4.     public class AddCheckBoxToDataGridView
5.     {
6.         public static System.Windows.Forms.DataGridView dgv;
7.         public static void AddFullSelect()
8.         {
9.             if (dgv.Rows.Count < 1)
10.             {
11.                 return;
12.             }
13.             System.Windows.Forms.CheckBox ckBox = new System.Windows.Forms.CheckBox();
14.             ckBox.Text = "全选";
15.             ckBox.Checked = true;
16.             System.Drawing.Rectangle rect =
17.                 dgv.GetCellDisplayRectangle(0, -1, true);
18.             ckBox.Size = new System.Drawing.Size(dgv.Columns[0].Width, 18);
19.             ckBox.Location = rect.Location;
20.             ckBox.CheckedChanged += new EventHandler(ckBox_CheckedChanged);
21.             dgv.Controls.Add(ckBox);
22.         }
23.         static void ckBox_CheckedChanged(object sender, EventArgs e)
24.         {
25.             for (int i = 0; i < dgv.Rows.Count; i++)
26.             {
27.                 dgv.Rows[i].Cells[0].Value = ((System.Windows.Forms.CheckBox)sender).Checked;
28.             }
29.             dgv.EndEdit();
30.         }

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