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();

    }

}