// ===========================================================================
// ©2013-2026 WebSupergoo. All rights reserved.
//
// This source code is for use exclusively with the ABCpdf product with
// which it is distributed, under the terms of the license for that
// product. Details can be found at
//
// http://www.websupergoo.com/
//
// This copyright notice must not be deleted and must be reproduced alongside
// any sections of code extracted from this module.
// ===========================================================================
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;
using System.Globalization;
namespace WPFTable
{
/** Binding for InvoiceTable, determines the numbers that show up in the right column (quant * price)
of the items table and in the totals table. @see InvoiceTable.xaml for how this converted is used in
multibinding. */
public class InvoiceDataConverter : IMultiValueConverter
{
private Int32 mQuantity;
private Double mUnitPrice;
private Double mSubTotal;
private readonly Int32 mShipping = 500;
private readonly Double mTax = 0.05;
public InvoiceDataConverter()
{
mQuantity = 0;
mUnitPrice = 0;
mSubTotal = 0;
}
/** Return values for the Totals table if a parameter is specified, e.g. "SubTotal". If no
parameter specified then return the right column of the itmes table (quant * price). In this
latter case also increment sub-total. */
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
string name;
/** Totals table */
if (parameter as string == "SubTotal")
{
name = mSubTotal.ToString("n");
}
else if (parameter as string == "Shipping")
{
name = mShipping.ToString("n");
}
else if (parameter as string == "Tax")
{
name = mTax.ToString("n");
}
else if (parameter as string == "Total")
{
Double total = mSubTotal + mShipping + (mTax * mSubTotal);
name = total.ToString("n");
}
else
{/** ItemsTable */
mQuantity = System.Convert.ToInt32(values[0] as string);
mUnitPrice = System.Convert.ToDouble(values[1] as string);
Double value = mQuantity * mUnitPrice;
mSubTotal += value;
name = value.ToString("n");
}
return name;
}
/** Not called */
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
object[] values = new object[2];
values[0] = mQuantity;
values[1] = mUnitPrice;
return values;
}
}
}
