private void LvCheckOut_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
//display values to user
listViewIndex = lvCheckOut.SelectedIndex;
tbProductName.Text = StaticCheckOutList.GetByIndex(listViewIndex).ProductName;
tbChangeQty.Text = StaticCheckOutList.GetByIndex(listViewIndex).Quntity.ToString();
}
public Checkout()
{
DataContext = this;
InitializeComponent();
//load items into list view from static object
lvCheckOut.ItemsSource = StaticCheckOutList.GetList();
for (var i = 0; i < StaticCheckOutList.Count(); ++i)
{
subtotal += StaticCheckOutList.GetByIndex(i).ProductTotal;
}
//load sub-total tax and grand total
tbSubTotal.Text = string.Format("${0:0.00}", subtotal);
tbTax.Text = string.Format("${0:0.00}", (subtotal * 0.13));
tbTotal.Text = string.Format("${0:0.00}", (subtotal * 1.13));
//set mail address from static user
tbMailAddress.Text = StaticUser.Address;
}
private void UpdateOnClick(object sender, RoutedEventArgs e)
{
if (tbChangeQty.Text != "")
{
// if the user types a letter or anything else don't crash
bool isNumeric = int.TryParse(tbChangeQty.Text, out int n);
if (isNumeric)
{
//if user puts number 0 or negative
if (Convert.ToInt32(tbChangeQty.Text) <= 0)
{
StaticCheckOutList.EditQty(listViewIndex, 0);
}
else
{
StaticCheckOutList.EditQty(listViewIndex, Convert.ToInt32(tbChangeQty.Text));
}
lvCheckOut.Items.Refresh();
//load sub-total tax and grand total
subtotal = 0;
for (var i = 0; i < StaticCheckOutList.Count(); ++i)
{
subtotal += StaticCheckOutList.GetByIndex(i).ProductTotal;
}
tbSubTotal.Text = string.Format("${0:0.00}", subtotal);
tbTax.Text = string.Format("${0:0.00}", (subtotal * 0.13));
tbTotal.Text = string.Format("${0:0.00}", (subtotal * 1.13));
}
else
{
// show the user the error
tbProductName.Text = "Not a number";
}
}
}