using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Data; using System.Windows.Markup; namespace AntDesignWPF.Converters { public class LessThanConverter : MarkupExtension, IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { double v = value.ExtractDouble(); double p = parameter.ExtractDouble(); return v < p; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } public override object ProvideValue(IServiceProvider serviceProvider) { return this; } } }