/// <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 < )

             {

                 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 = ; i < dgv.Rows.Count; i++)

             {

                 dgv.Rows[i].Cells[].Value = ((System.Windows.Forms.CheckBox)sender).Checked;

             }

             dgv.EndEdit();

         }

     }