private void UpdateRoom(Room updatedRoom) { var roomListItem = Rooms.First(listItem => listItem.RoomId == updatedRoom.Id); roomListItem.Name = updatedRoom.Name; roomListItem.DisplayedColor = updatedRoom.DisplayedColor; SelectedRoomObject = updatedRoom; var updatedPractice = SelectedMedicalPracticeObject.UpdateRoom(updatedRoom); UpdateMedicalPractice(updatedPractice); }