JD2022-TU1/main/tools/framework/JD.WPF/Converters/NullToVisibilityConverter.cs

46 lines
1.5 KiB
C#

using System;
using System.Windows;
using System.Windows.Data;
namespace JD.WPF.Converters
{
public class NullToVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
bool inverted = false;
if (parameter is bool)
inverted = (bool)parameter;
if(inverted)
return value == null ? Visibility.Visible : Visibility.Hidden;
else
return value == null ? Visibility.Hidden : Visibility.Visible;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
public class NullToVisibilityCollapsedConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
bool inverted = false;
if (parameter is bool)
inverted = (bool)parameter;
if (inverted)
return value == null ? Visibility.Visible : Visibility.Collapsed;
else
return value == null ? Visibility.Collapsed : Visibility.Visible;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
}