19 lines
562 B
C#
19 lines
562 B
C#
using System.Globalization;
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using System.Windows;
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using System.Windows.Data;
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namespace SHH.CameraDashboard;
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// 1. 对象为空时隐藏，不为空时显示
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public class NullToVisibilityConverter : IValueConverter
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{
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public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
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{
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return value == null ? Visibility.Collapsed : Visibility.Visible;
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}
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public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
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{
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throw new NotImplementedException();
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}
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} |