DockPanel контейнер компоновки WPF

DockPanel— Выстраивает элементы по краю контейнера.

<DockPanel LastChildFill="True">

        <TextBlock DockPanel.Dock="Top"
                   Background="LightBlue"
                   Padding="10">
            DockPanel.Dock="Top"</TextBlock>

        <TextBlock DockPanel.Dock="Top"
                   Background="LightBlue" 
                   Padding="10"><Run Text="Toolbar"/></TextBlock>

        <TextBlock DockPanel.Dock="Bottom"
                   Background="LightGreen" 
                   Padding="10">
            DockPanel.Dock="Bottom"</TextBlock>

        <TextBlock DockPanel.Dock="Right"
                   Background="LightCyan"
                   Padding="10">
            DockPanel.Dock="Right"</TextBlock>

        <TextBlock DockPanel.Dock="Left"
                   Background="LightCoral"
                   Padding="10">
    
            DockPanel.Dock="Left"</TextBlock>


    </DockPanel>