24 lines
764 B
C#
24 lines
764 B
C#
using System;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Data;
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namespace DMS.WPF.Converters
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{
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/// <summary>
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/// Null值到可见性转换器。当绑定的值不为null时，返回Visible，否则返回Collapsed。
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/// </summary>
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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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// 如果值不为null，则可见
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return value != null ? Visibility.Visible : Visibility.Collapsed;
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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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}
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} |