async void getDispatcherList()
        {
            try
            {
                ItemsList <NamedValue> result = await server.GetDispatcherList();

                dispList       = result.Data;
                BindingContext = null;
                BindingContext = new DispListModel()
                {
                    AllDisp      = dispList,
                    hex          = HexColor,
                    SelectedDisp = dispList[0]
                };
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }
        }