38 lines
1.3 KiB
C#
38 lines
1.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Data;
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namespace UIShare.Converters
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{
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public class StringToVisibilityConverter : 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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// 是否反转结果（字符串非空时返回 Collapsed），用于需要“有值则隐藏”的场景，如展开全屏时隐藏台架标签页
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bool inverse = string.Equals(parameter?.ToString(), "Inverse", StringComparison.OrdinalIgnoreCase);
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if(value is string str)
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{
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if (string.IsNullOrEmpty(str))
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{
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return inverse ? Visibility.Visible : Visibility.Collapsed;
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}
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else
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{
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return inverse ? Visibility.Collapsed : Visibility.Visible;
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}
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}
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return inverse ? 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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}
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