C# dataGridView绑定List与datatable

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsFormsApp3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public void button1_Click(object sender, EventArgs e)
        {
          //  var mylist  =new List<int>();
          //  dataGridView1.RowCount = 1;                     
          //  dataGridView1.DataSource = mylist;          
          //  mylist.Add(10);          
           // DataRow data = dataTable.NewRow();
            //  mylist.Add(20);
            //   mylist.Add(30);       
            // dataTable.Rows[0][0] = 0;
            // dataGridView1.Rows[0].Cells[0].Value =data[0];
            //   dataGridView1.Rows[1].Cells[0].Value = mylist[1];
            //  dataGridView1.Rows[2].Cells[0].Value = mylist[2];
            //   mylist.Remove(0);
            //  dataGridView1.DataSource = mylist;
            //  MessageBox.Show(Convert.ToString( mylist[0]));
            DataTable dataTable = new DataTable();
            dataTable.Rows.Add();
            dataTable.Columns.Add("1");
            dataTable.Rows[0][0] ="你好";  
            dataGridView1.DataSource = dataTable;
        }

        private void button3_Click(object sender, EventArgs e)
        {
           
        }