prs/prs.desktop/Panels/Shipments/ShippingPanel.xaml

<UserControl x:Class="PRSDesktop.DispatchPanel"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:PRSDesktop"
             xmlns:dynamicgrid="clr-namespace:InABox.DynamicGrid;assembly=InABox.Wpf"
             mc:Ignorable="d"
             Focusable="True"
             d:DesignHeight="600" d:DesignWidth="800">
    <dynamicgrid:DynamicSplitPanel Margin="0,5,0,0" View="Combined" MasterCaption="Shipments" DetailCaption="Items">

        <dynamicgrid:DynamicSplitPanel.Master>
            <local:ShipmentGrid x:Name="Shipments" />
        </dynamicgrid:DynamicSplitPanel.Master>

        <dynamicgrid:DynamicSplitPanel.Detail>
            <local:ShipmentItemGrid x:Name="Items" />
        </dynamicgrid:DynamicSplitPanel.Detail>

    </dynamicgrid:DynamicSplitPanel>

</UserControl>