What is the point of the StatusBarItem class in WPF?
A StatusBar is an ItemsControl. All ItemsControls have a container class. For ListBoxes, it's ListBoxItem. For StatusBar, it's StatusBarItem. If you don't explicitly wrap your item in a StatusBarItem, it will be implicitly wrapped in one for you.
If you need to set properties of an ItemsControl's containers, you can use the ItemContainerStyle property:
<StatusBar> <TextBlock>One</TextBlock> <TextBlock>Two</TextBlock> <TextBlock>Three</TextBlock> <StatusBar.ItemContainerStyle> <Style TargetType="StatusBarItem"> <Setter Property="HorizontalAlignment" Value="Right"/> </Style> </StatusBar.ItemContainerStyle></StatusBar>Finally, note that the StatusBar uses a DockPanel by default to lay out its children. This can be frustrating when you're doing intricate layouts. See my blog post here on how to swap it out for a Grid.