using projet.bddmanager; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace projet.dal { public class Access { private static readonly string connectionString = "server=localhost;user id=root;password=;database=mediatek;"; private static Access instance = null; public BddManager Manager { get; } private Access() { try { Manager = BddManager.GetInstance(connectionString); } catch (Exception) { Environment.Exit(0); } } public static Access GetInstance() { if (instance == null) { instance = new Access(); } return instance; } } }