将可见性属性（视图）与布尔属性（ViewModel）绑定

Posted 2021-02-25

<!-- XAML VisibilityConverter Usage -->
 
 
<Window.Resources>
    <vw:VisibilityConverter x:Key="VisibilityConverter" />
</Window.Resources>
 
<Grid Visibility="{Binding MyBoolean, Converter={StaticResource VisibilityConverter}}">
  ...
</Grid>
 
 
// C# VisibilityConverter implementation
 
public class VisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Visibility rv = Visibility.Visible;
            try
            {
                var x = bool.Parse(value.ToString());
                if (x)
                {
                    rv = Visibility.Visible;
                }
                else
                {
                    rv = Visibility.Collapsed;
                }
            }
            catch (Exception)
            {
            }
            return rv;
        }
 
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return value;
        }
    }