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 PDF_Master.DataConvert { public class VisibleToBoolConvert : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) { return false; } else { if ((Visibility)value==Visibility.Visible) { return true; } else { return false; } } } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) { return Visibility.Collapsed; } else { if ((bool)value) { return Visibility.Visible; } else { return Visibility.Collapsed; } } } } public class UnVisibleToBoolConvert : IValueConverter { public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) { return false; } else { if ((Visibility)value==Visibility.Collapsed) { return true; } else { return false; } } } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) { return Visibility.Visible; } else { if ((bool)value) { return Visibility.Collapsed; } else { return Visibility.Visible; } } } } }