using MySql.Data.MySqlClient;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

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

        MySqlConnection conn;

        private void Form1_Load(object sender, EventArgs e)
        {
            conn = new MySqlConnection("server=localhost;database=csharp;uid=root;pwd=abc123");
            DataSet ds = new DataSet();
            DataSet ds1 = new DataSet();
            MySqlDataAdapter sda = new MySqlDataAdapter("select * from tb_test", conn);
            sda.Fill(ds);
            MySqlDataAdapter sda1 = new MySqlDataAdapter("select * from tb_man", conn);
            MySqlCommandBuilder sbl = new MySqlCommandBuilder(sda1);
            sda1.Fill(ds1);
            //将ds中的数据合并到ds1中
            ds1.Merge(ds, true, MissingSchemaAction.AddWithKey);
            dataGridView1.DataSource = ds1.Tables[0];
        }
    }
}