public FQlyTaiKhoan() { InitializeComponent(); List <LoadAccount_Result> loadAccount = setAccount.LoadAccount(); t = 1; CbID.ValueMember = "ID_Employee"; CbID.DisplayMember = "ID_Employee"; CbID.DataSource = loadAccount; CbID.Enabled = true; CbID.SelectedItem = loadAccount[0].ID_Employee.ToString(); ID = loadAccount[0].ID_Employee; load(); }