Untitled

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

namespace yon_database2
{
    public partial class TestForm : Form
    {
        //Use your information
        string cs = @"server=localhost;userid=admin;password=password;database=yon";

        public TestForm()
        {
            InitializeComponent();
            using var con = new MySqlConnection(cs);
            con.Open(); 
            MySqlCommand cmd = new MySqlCommand("SELECT * FROM users", con);
            using (MySqlDataReader reader = cmd.ExecuteReader())
            {
                while (reader.Read())
                {
                    DataGridViewRow row = (DataGridViewRow)dataGridView1.Rows[0].Clone();
                    row.Cells[0].Value = reader[0];
                    row.Cells[1].Value = reader[1];
                    row.Cells[2].Value = reader[2];
                    dataGridView1.Rows.Add(row);
                }
            }
        }
    }
}