C# winform中的datagridview控件标头加入checkbox，实现全选功能。

/// <summary>
    /// 给DataGridView添加全选
    /// </summary>
    public class AddCheckBoxToDataGridView
    {
        public static System.Windows.Forms.DataGridView dgv;
        public static void AddFullSelect()
        {
            if (dgv.Rows.Count < 1)
            {
                return;
            }
            this.dataGridView1.RowTemplate.Height = 23;
         System.Windows.Forms.CheckBox ckBox = new System.Windows.Forms.CheckBox();
            ckBox.Text = "全选";
            ckBox.Checked = true;
            System.Drawing.Rectangle rect =
            dataGridView1.GetCellDisplayRectangle(0, -1, true);
            ckBox.Size = new System.Drawing.Size(dataGridView1.Columns[0].Width, 18);
            ckBox.Location =new Point( rect.Location.X+2,rect.Location.Y+2);
            ckBox.CheckedChanged += new EventHandler(ckBox_CheckedChanged);
            dataGridView1.Controls.Add(ckBox);
        }
        static void ckBox_CheckedChanged(object sender, EventArgs e)
        {
            for (int i = 0; i < dgv.Rows.Count; i++)
            {
                dgv.Rows[i].Cells[0].Value = ((System.Windows.Forms.CheckBox)sender).Checked;
            }
            dgv.EndEdit();
        }
    }

上面的类第一个方法，是为datagridview表头添加checkbox，第二个方法是全选功能实现。