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    copied!<p>It is a lot of typing (~50 lines) but when you finish the basic functionality you can easily do things like change the item display or add expand/collapse functionality for the groups, here is an example (with expand/collapse, just for fun):</p> <p>First our data objects:</p> <pre><code>public class Item { public string Type { get; set; } public string Name { get; set; } public ImageSource Icon { get; set; } } </code></pre> <p>Create them in your code and set a list of them as the DataContext of the following window:</p> <pre><code>&lt;Window x:Class="ListViewTest.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300" Name="W"&gt; &lt;Window.Resources&gt; &lt;CollectionViewSource x:Key="Items" Source="{Binding}"&gt; &lt;CollectionViewSource.GroupDescriptions&gt; &lt;PropertyGroupDescription PropertyName="Type"/&gt; &lt;/CollectionViewSource.GroupDescriptions&gt; &lt;/CollectionViewSource&gt; &lt;DataTemplate x:Key="ItemTemplate"&gt; &lt;Grid Width="128"&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="40"/&gt; &lt;RowDefinition Height="12"/&gt; &lt;/Grid.RowDefinitions&gt; &lt;Image Source="{Binding Icon}"/&gt; &lt;TextBlock Text="{Binding Name}" Grid.Row="1"/&gt; &lt;/Grid&gt; &lt;/DataTemplate&gt; &lt;ItemsPanelTemplate x:Key="ItemPanel"&gt; &lt;WrapPanel Orientation="Horizontal" Width="{Binding ElementName=W, Path=ActualWidth}"/&gt; &lt;/ItemsPanelTemplate&gt; &lt;DataTemplate x:Key="HeaderTemplate"&gt; &lt;StackPanel Margin="0 15"&gt; &lt;TextBlock Text="{Binding Name}"/&gt; &lt;Rectangle Height="1" Fill="Blue"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;Style x:Key="ContainerStyle" TargetType="{x:Type GroupItem}"&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate&gt; &lt;Expander Header="{Binding Name}" IsExpanded="True"&gt; &lt;ItemsPresenter/&gt; &lt;/Expander&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/Window.Resources&gt; &lt;Grid&gt; &lt;ListBox ItemsSource="{Binding Source={StaticResource Items}}" ItemTemplate="{StaticResource ItemTemplate}" ItemsPanel="{StaticResource ItemPanel}"&gt; &lt;ListBox.GroupStyle&gt; &lt;GroupStyle HeaderTemplate="{StaticResource HeaderTemplate}" ContainerStyle="{StaticResource ContainerStyle}"/&gt; &lt;/ListBox.GroupStyle&gt; &lt;/ListBox&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p>There may be some bugs in there but its a good start.</p>
 

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