public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
        {
            View itemView = LayoutInflater.From(parent.Context).
                            Inflate(Resource.Layout.class_item, parent, false);
            ClassViewHolder vh = new ClassViewHolder(itemView, OnClick);

            return(vh);
        }
        public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
        {
            ClassViewHolder vh = holder as ClassViewHolder;

            vh.textViewClass.Text = mRoomModels[position].RoomName;
        }