public void Login()
        {
            WypozyczalniaDataClassesDataContext dbContext = new WypozyczalniaDataClassesDataContext(
                //"Data Source=HANIA-LAPTOP\\SQLEXPRESS;Initial Catalog=Test2;User ID=sa;Password=Admin1");
                DatabaseSettings.CreateConnectionString(form.UserName, form.Password));
            DatabaseSettings.Save(form.UserName);

            BaseView initForm = new ClientsView();
            Controller controller = new Controller(dbContext, initForm);
            initForm.Show();
            form.Hide();
        }
        public void Login()
        {
            WypozyczalniaDataClassesDataContext dbContext = new WypozyczalniaDataClassesDataContext("Data Source=(LocalDB)\\v11.0;AttachDbFilename=C:\\Users\\Paweł\\Documents\\GitHub\\Wypozyczalnia\\Wypozyczalnia\\myDB.mdf;Integrated Security=True;Connect Timeout=30");
            //"Data Source=HANIA-LAPTOP\\SQLEXPRESS;Initial Catalog=Test2;User ID=sa;Password=Admin1");
            // DatabaseSettings.CreateConnectionString(form.UserName, form.Password));
            DatabaseSettings.Save(form.UserName);

            BaseView initForm = new ClientsView();
            Controller controller = new Controller(dbContext, initForm);
            initForm.Show();
            form.Hide();
        }