using System;
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using System.Collections;
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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 HMI.UI.Converter
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{
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public class CollectionHasItem : 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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if (value is IList collection)
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{
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return collection != null && collection.Count > 0;
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}
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return false;
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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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return null;
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}
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}
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public class CollectionVisibility : 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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if (value is int count)
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{
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return count > 0 ? Visibility.Visible : Visibility.Collapsed;
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}
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if (value is IList collection)
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{
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var flag = collection != null && collection.Count > 0;
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return flag ? Visibility.Visible : Visibility.Collapsed;
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}
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return 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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return null;
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}
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}
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}
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