Ooui-tws-port/Samples/TipCalc/DoubleRoundingConverter.cs

34 lines
932 B
C#
Raw Normal View History

2017-12-12 20:25:56 +00:00
using System;
using System.Globalization;
using Xamarin.Forms;
namespace TipCalc
{
public class DoubleRoundingConverter : IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
return Round((double)value, parameter);
}
public object ConvertBack(object value, Type targetType,
object parameter, CultureInfo culture)
{
return Round((double)value, parameter);
}
double Round(double number, object parameter)
{
double precision = 1;
// Assume parameter is string encoding precision.
if (parameter != null)
{
precision = Double.Parse((string)parameter);
}
return precision * Math.Round(number / precision);
}
}
}