<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="" Height="300" Width="300">
<Window.Resources>
<x:ArrayExtension Type="{x:Type sys:String}" x:Key="items">
<sys:String>A</sys:String>
<sys:String>B</sys:String>
<sys:String>C</sys:String>
<sys:String>D</sys:String>
</x:ArrayExtension>
</Window.Resources>
<StackPanel DataContext="{StaticResource items}">
<ListBox ItemsSource="{Binding}" ScrollViewer.VerticalScrollBarVisibility="Disabled">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
<ComboBox ItemsSource="{Binding}">
<ComboBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid />
</ItemsPanelTemplate>
</ComboBox.ItemsPanel>
</ComboBox>
</StackPanel>
</Window>
| 
