public ReturnPage()
{
InitializeComponent();
PageReturns.Focus();
PopulateItemList();
FillCategoryCombo();
FillItemList(itemDTOs);
cartController.CancelTransaction();
}
/// <summary>
/// Check for barcode reader key combinations when keys are pressed is entered
/// </summary>
/// <param name="sender">Object that triggered the event</param>
/// <param name="e">Event details</param>
private void HandleBarcodeScan(object sender, KeyEventArgs e)
{
// leftCtrl + B focus upcText and set reading to true
if (Keyboard.IsKeyDown(Key.LeftCtrl) && Keyboard.IsKeyDown(Key.B))
{
PageReturns.Focus();
scannerUPCString = "";
reading = true;
}
// leftCtrl + J take the UPC from UPCText and find the item if it exists
// otherwise clear fields and prepare for new item entry
else if (Keyboard.IsKeyDown(Key.LeftCtrl) && Keyboard.IsKeyDown(Key.J))
{
if (reading)
{
// find the item associated with the upc entered
ItemDTO item = itemDTOs
.Cast <ItemDTO>()
.Where(x => x.UPC.Equals(scannerUPCString)).FirstOrDefault();
if (item != null)
{
cartController.AddItem(item);
UpdateTransactionView();
UpdateTotal();
}
else
{
MessageBox.Show("Item Not Found!!!");
}
}
reading = false;
}
else if (reading && !Keyboard.IsKeyDown(Key.LeftCtrl))
{
// get the character from the event item and add it to the current upc
scannerUPCString += e.Key.ToString()[1];
}
}
