protected override void RemoveItem(int index)
{
ActiveInventoryObject item = this[index];
UPCDictionary.Remove(item.UPC.ToUpperInvariant());
SKUDictionary.Remove(item.SKU.ToUpperInvariant());
ProductIDDictionary.Remove(item.ProductID);
item.UnSubscribeToChangeEvents(item_UPCChanged, item_SKUChanged);
base.RemoveItem(index);
TotalInvested -= (item.WholeSalePrice + item.AdditionalOverhead) * item.Quantity;
}
void item_UPCChanged(object sender, ItemChangedEventArgs e)
{
string key = e.OldValue as string;
if (!string.IsNullOrEmpty(key))
{
key = key.ToUpperInvariant();
int index = UPCDictionary[key];
UPCDictionary.Remove(key);
key = e.NewValue as string;
AddUPCItem(key, index);
}
}