在dataGridView的标题中自动生成行号

private void dataGridView1_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
    for (int i = e.RowIndex; i < e.RowIndex + e.RowCount; i++)
    {
        dataGridView1.Rows[i].Cells[0].Value = (i + 1).ToString();
    }
}

using System;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            InitializeDataGridView();
        }

        private void InitializeDataGridView()
        {
            DataGridViewTextBoxColumn column = new DataGridViewTextBoxColumn();
            column.HeaderText = "行号";
            dataGridView1.Columns.Add(column);
            dataGridView1.RowsAdded += dataGridView1_RowsAdded;
        }

        private void dataGridView1_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
        {
            for (int i = e.RowIndex; i < e.RowIndex + e.RowCount; i++)
            {
                dataGridView1.Rows[i].Cells[0].Value = (i + 1).ToString();
            }
        }
    }
}