System.Windows.Controlsの紹介 - Expander
<Window x:Class="Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Expander" Height="200" Width="200"
>
<StackPanel>
<Expander Margin="10" Padding="5" Background="LightBlue" IsExpanded="True" Header="PowerTools">
<StackPanel>
<TextBlock Text="ActiveReports"/>
<TextBlock Text="SPREAD"/>
<TextBlock Text="InputMan"/>
</StackPanel>
</Expander>
</StackPanel>
</Window>
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Expander" Height="200" Width="200"
>
<StackPanel>
<Expander Margin="10" Padding="5" Background="LightBlue" IsExpanded="True" Header="PowerTools">
<StackPanel>
<TextBlock Text="ActiveReports"/>
<TextBlock Text="SPREAD"/>
<TextBlock Text="InputMan"/>
</StackPanel>
</Expander>
</StackPanel>
</Window>