DataGridView绑定行号

private  void DataGridView_DataBindingComplete( object sender, DataGridViewBindingCompleteEventArgs e)
{
     foreach(DataGridViewRow row  in DataGridView.Rows)
    {
        row.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleRight;
        row.HeaderCell.Value = (row.Index +  1).ToString();
    }
}