private void BookingForm_Load(object sender, EventArgs e)
{
lb_Products.DisplayMember = "Title";
lb_Services.DisplayMember = "Title";
cb_employee.DataSource = employeeController.GetEmployees();
cb_employee.DisplayMember = "FirstName";
dgv_bookings.DataSource = bookingsController.GetBookingsByEmployee((Employee)cb_employee.SelectedItem, dateTime1.SelectionStart);
//dgv_bookings.DataSource = bookingsController.GetAllBookings();
}