c# dataGridView 序号自动递增

 在datagridview上显示行号

1,先在加入如下代码

private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)

        {

            Rectangle rectangle = new Rectangle(e.RowBounds.Location.X,

                e.RowBounds.Location.Y,

                dataGridView1.RowHeadersWidth - 4,

                e.RowBounds.Height);

            TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(),

                dataGridView1.RowHeadersDefaultCellStyle.Font,

                rectangle,

                dataGridView1.RowHeadersDefaultCellStyle.ForeColor,

                TextFormatFlags.VerticalCenter | TextFormatFlags.Right);

        }

 

2，然后再在From1.Designer.cs文件中加入如下代码，就行了。

this.dataGridView1.RowPostPaint += new System.Windows.Forms.DataGridViewRowPostPaintEventHandler(this.dataGridView1_RowPostPaint);


转自：http://www.myhack58.com/Article/68/2014/46838.htm