public UdpRawRequestItemModelCollection this[UdpRawRequestItemModel model]
        {
            get
            {
                UdpRawRequestItemModelCollection collection = null;
                string key = model.IPAddress;

                if (!this.ContainsKey(key))
                {
                    this.Add(key, (collection = new UdpRawRequestItemModelCollection()));
                }
                else
                {
                    collection = this[key];
                }
                return(collection);
            }
        }
 public void AddItem(UdpRawRequestItemModel model)
 {
     this[model].Add(model);
 }