using System; using System.Globalization; using System.Linq; using System.Windows; using System.Windows.Data; namespace ComPDFKit.Controls.Common { public class HomePageHeightConverter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { if (values[0] == null || values[1] == null) { return false; } else { return (double)values[0] - (double)values[1]; } } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) { return null; } } }