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 it_projekt { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void searchBtn_Click(object sender, EventArgs e) { } private void loginBtn_Click(object sender, EventArgs e) { LoadUsersFromTable("",""); } public static void LoadUsersFromTable(string user, string password) { string connectionString = "server=localhost;database=stammdaten;User Id=" + user + ";Password=" + password + ";"; Database test = new Database(connectionString); MessageBox.Show(test.persons.Find(1).Firstname); } } }