private async void btnItemOrder_Click(object sender, RoutedEventArgs e)
        {
            Regex  regex            = new Regex("[0-9]");
            string inputtedQuantity = txtOrderQuantity.Text;

            if ((regex.IsMatch(inputtedQuantity)) && txtFirstName.Text != "" && txtSurname.Text != "" && txtEmailAddress.Text != "")
            {
                _Location = new clsLocation();
                _Location = await ServiceClient.GetLocationAsync(_Item.LocationName);

                _UpdatedItem = new clsAllItem();
                _UpdatedItem = _Location.ItemsList.SingleOrDefault(x => x.ItemID == _Item.ItemID);
                pushData(_UpdatedItem);
            }
            else
            {
                txbMessage.Text = "Please enter a number in the quantity field and/or fill in all fields";
            }
        }
        protected async override void OnNavigatedTo(NavigationEventArgs e)
        {
            try
            {
                base.OnNavigatedTo(e);
                if (e.Parameter != null)
                {
                    string lcName = e.Parameter.ToString();
                    _Location = await ServiceClient.GetLocationAsync(lcName);

                    UpdateDisplay();
                }
                else
                {
                    _Location = new clsLocation();
                }
            }
            catch (Exception ex)
            {
                txbMessage.Text = ex.GetBaseException().Message;
            }
        }