Winform DataGridView控件添加行号

1 e.Row.HeaderCell.Value = (e.Row.Index + 1).ToString();//添加行号
2 
3 //e.Row.HeaderCell.Value = string.Format("{0}", e.Row.Index + 1);

1         private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
2         {
3             //添加行号
4             System.Drawing.Rectangle rectangle = new Rectangle(e.RowBounds.Location.X, e.RowBounds.Y, this.dataGridView1.RowHeadersWidth - 4, this.dataGridView1.ColumnHeadersHeight);
5             TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(), this.dataGridView1.RowHeadersDefaultCellStyle.Font, rectangle, this.dataGridView1.RowHeadersDefaultCellStyle.ForeColor, TextFormatFlags.VerticalCenter | TextFormatFlags.Right);//”TextFormatFlags.VerticalCenter | TextFormatFlags.Right“中“|”有增加的作用，此处添加了两种文本字符格式样式
6             //this.dataGridView1.RowHeadersDefaultCellStyle.BackColor = Color.FromArgb(192, 192, 255);//行标题单元格BackColor
7             //this.dataGridView1.RowHeadersDefaultCellStyle.BackColor = SystemColors.Control;
8         }