using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Data; namespace ComPDFKit.Controls.Common { public class ShowDefaultCloseButtonConverter : IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture) { var Visible = ( (values[1] == DependencyProperty.UnsetValue ? 0 : (int)values[1]) >= (values[0] == DependencyProperty.UnsetValue ? 0 : (int)values[0]) ? Visibility.Visible : Visibility.Collapsed); return Visible; } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture) { return null; } } }