1、DataGridView

 1         private void AddXh()
 2         {
 3             DataGridViewTextBoxColumn col = new DataGridViewTextBoxColumn();
 4             col.Name = "xh";
 5             col.HeaderText = "序号";
 6             col.FillWeight = 2;
 7             dgvEquipment.Columns.Insert(0, col);
 8 
 9             dgvEquipment.RowPostPaint += dgvEquipment_RowPostPaint;
10         }
11 
12         private void dgvEquipment_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
13         {
14             foreach (DataGridViewRow row in dgvEquipment.Rows)
15             {
16                 row.Cells["xh"].Value = row.Index + 1;
17             }
18         }