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    <p>It was not easy,but I realized what shall I do to fix this bug. My idea is to use custom Convertor, but I haven't any clever thoughts How to send ConverterParameter into convertor. But I've found solution. Here is my convertor:</p> <pre><code>public class SeparatorConverter : IValueConverter { private Visibility _visible; public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { var element = (TextBlock) value; element.Loaded += ElementLoaded; return _visible; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return null; //not needed } private static void ElementLoaded(object sender, RoutedEventArgs e) { var element = sender as TextBlock; var parentItemsControl = element.FindParent(x =&gt; x is ItemsControl) as ItemsControl; var parentPanel = element.FindParent(x =&gt; x is Panel) as Panel; if (parentItemsControl == null || element == null || parentPanel== null) return; var itemText = parentPanel.FindName("MyTextBlock") as TextBlock; var collection = parentItemsControl.ItemsSource as IEnumerable&lt;string&gt;; if (itemText == null || collection == null) return; var list = collection.ToList(); if (list.IndexOf(itemText.Text) == list.Count() - 1) // Can be incorrect because we can have two same items element.Visibility = Visibility.Collapsed; } } </code></pre> <p>Find parent function:</p> <pre><code>public static DependencyObject FindParent(this DependencyObject element, Func&lt;DependencyObject, bool&gt; filter) { DependencyObject parent = VisualTreeHelper.GetParent(element); if (parent != null) { if (filter(parent)) { return parent; } return FindParent(parent, filter); } return null; } </code></pre> <p>Here is my XAML code:</p> <pre><code> &lt;Coverters:SeparatorConverter x:Key="SeparatorVisibilityConverter"&gt; &lt;/Coverters:SeparatorConverter&gt; &lt;ItemsControl Grid.Row="1" ItemsSource="{Binding Value, IsAsync=False}"&gt; &lt;ItemsControl.ItemsPanel&gt; &lt;ItemsPanelTemplate&gt; &lt;WrapPanel&gt; &lt;/WrapPanel&gt; &lt;/ItemsPanelTemplate&gt; &lt;/ItemsControl.ItemsPanel&gt; &lt;ItemsControl.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;WrapPanel&gt; &lt;TextBlock x:Name="MyTextBlock" Text="{Binding}" Style="{StaticResource TextBlockInListViewItem}" TextWrapping="WrapWithOverflow"/&gt; &lt;TextBlock x:Name="commaTextBlock" Style="{StaticResource TextBlockInListViewItem}" Text=", " Visibility="{Binding RelativeSource={RelativeSource Self}, Converter={StaticResource SeparatorVisibilityConverter}}"/&gt; &lt;/WrapPanel&gt; &lt;/DataTemplate&gt; &lt;/ItemsControl.ItemTemplate&gt; &lt;/ItemsControl&gt; </code></pre> <p>Ok. Any way, If you have another idea how to fix this bug, you could post your answer here=)</p>
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    1. PO(WPF) How can a separator be added between items in an ItemsControl - Bug Fixing
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    1. PO(WPF) How can a separator be added between items in an ItemsControl - Bug Fixing
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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