public class TrimmedTextBlockVisibilityConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (value == null) return Visibility.Collapsed; FrameworkElement textBlock = (FrameworkElement)value; textBlock.Measure(new System.Windows.Size(Double.PositiveInfinity, Double.PositiveInfinity)); if (((FrameworkElement)value).ActualWidth < ((FrameworkElement)value).DesiredSize.Width) return Visibility.Visible; else return Visibility.Collapsed; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } }
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