TreeView And TreeViewItem
<Window x:Class="SimpleStyles.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="SimpleStyles"
Background="#F8F8F8">
<ScrollViewer>
<WrapPanel>
<HeaderedItemsControl Header="TreeView">
<StackPanel>
<TreeView Width="150" Height="150" Margin="8">
<TreeViewItem Header="Top One">
<TreeViewItem Header="Sub One" />
<TreeViewItem Header="Sub Two (Longer than Normal)" />
<TreeViewItem Header="Sub Three" />
<TreeViewItem Header="Sub Four">
<TreeViewItem Header="Sub One" />
<TreeViewItem Header="Sub Two" />
<TreeViewItem Header="Sub Three" />
</TreeViewItem>
<TreeViewItem Header="Sub Five" />
</TreeViewItem>
<TreeViewItem Header="Top Two">
<TreeViewItem Header="Sub One" />
<TreeViewItem Header="Checkable" />
<TreeViewItem Header="Sub Three" />
<TreeViewItem Header="Sub Four">
<TreeViewItem Header="Sub One" />
<TreeViewItem Header="Sub Two" />
<TreeViewItem Header="Sub Three" />
</TreeViewItem>
<TreeViewItem Header="Sub Five" />
</TreeViewItem>
<TreeViewItem Header="Top Three" >
<TreeViewItem Header="Sub One" />
<TreeViewItem Header="Sub Two" />
<TreeViewItem Header="Sub Three" />
<TreeViewItem Header="Sub Five" />
</TreeViewItem>
</TreeView>
</StackPanel>
</HeaderedItemsControl>
</WrapPanel>
</ScrollViewer>
</Window>
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