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;port=3306;database=stammdaten;User Id=" + user + ";Password=" + password + ";"; using (MySqlConnection connection = new MySqlConnection(connectionString)) { // Create database if not exists using (Database contextDB = new Database(connection, false)) { contextDB.Database.CreateIfNotExists(); } connection.Open(); MySqlTransaction transaction = connection.BeginTransaction(); try { // DbConnection that is already opened using (Database context = new Database(connection, false)) { // Interception/SQL logging context.Database.Log = (string message) => { Console.WriteLine(message); }; // Passing an existing transaction to the context context.Database.UseTransaction(transaction); // DbSet.AddRange List persons = new List(); persons = context.persons.ToList(); } transaction.Commit(); } catch { transaction.Rollback(); throw; } } } } }