DataGridView添加行号

 1 private void dgv_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
 2         {
 3             try
 4             {
 5                 SolidBrush v_SolidBrush = new SolidBrush(this.dgvAccountBook.RowHeadersDefaultCellStyle.ForeColor);
 6                 int v_LineNo = 0;
 7                 v_LineNo = e.RowIndex + 1;
 8 
 9                 string v_Line = v_LineNo.ToString();
10 
11                 e.Graphics.DrawString(v_Line, e.InheritedRowStyle.Font, v_SolidBrush, e.RowBounds.Location.X + 15, e.RowBounds.Location.Y + 5);
12 
13             }
14             catch (Exception ex)
15             {
16                 MessageBox.Show("添加行号时发生错误，错误信息：" + ex.Message, "操作失败");
17             }
18         }