/// <summary>
/// update an existing product item.
/// </summary>
/// <param name="obj"></param>
public void UpdateSelected(object obj)
{
IsDirty = true;
ProductsList.Remove(selectedItem);
Product newItem = new Product(selectedItem.ProductName, selectedItem.ProductPrice);
if (_IsValue)
{
newItem.ProductPrice = currentValue;
}
else if (_IsPercentage)
{
newItem.ProductPrice = newItem.UpdateByPercentage(currentValue);
}
// little bit work around for making the observable collection to refresh on the list view.
// if found a better solution to do this, shouls update this method accordingly.
ProductsList.Add(newItem);
selectedItem = newItem;
IsDirty = false;
IsValue = false;
IsPercentage = false;
currentValue = 0.0;
}
