ConverterTemplate.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;

namespace Azrael.Converters
{
    // Converter templates
    public abstract class TwoWayConverter<Source, Target> : IValueConverter
        where Source : class
        where Target : class
    {
        public abstract Target ToTarget(Source input, object parameter);

        public abstract Source ToSource(Target input, object parameter);

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return ToTarget(value as Source, parameter);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return ToSource(value as Target, parameter);
        }
    }

    public abstract class OneWayConverter<Source, Target> : IValueConverter
        where Source : class
        where Target : class
    {
        public abstract Target ToTarget(Source input, object parameter);

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return ToTarget(value as Source, parameter);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}