public void displayControlValues() { bfc = new BookingFacilityControl(); txtbookingId.Text = bfc.display(); txtMemId.Text = ""; txttimeFrom.Text = ""; txtTimeTo.Text = ""; FacilityNamecombobox.Items.Clear(); MemNamelabel.Visible = false; btnSave.Enabled = true; List <facility> facilitynames = new List <facility>(); foreach (facility f in bfc.getFacilities().ToList <facility>()) { FacilityNamecombobox.Items.Add(f.FacilityId + " " + f.FacilityName); } }