19 lines
596 B
C#
19 lines
596 B
C#
|
using System.Globalization;
|
|||
|
|
using System.Windows;
|
|||
|
|
using System.Windows.Data;
|
|||
|
|
|
|||
|
|
namespace SHH.CameraDashboard;
|
|||
|
|
|
|||
|
|
// 2. 对象为空时显示，不为空时隐藏 (用于显示提示文字)
|
|||
|
|
public class InverseNullToVisibilityConverter : IValueConverter
|
|||
|
|
{
|
|||
|
|
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
return value == null ? Visibility.Visible : Visibility.Collapsed;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
throw new NotImplementedException();
|
|||
|
|
}
|
|||
|
|
}
|