using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Data; namespace ListSample.Converter { [ValueConversion(typeof(int), typeof(string))] internal class AgeToRangeConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) return null; return (int)value >= 40 ? "OB Group" : "YB Group"; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { return null; } } }