prs/prs.desktop/Panels/Invoices/InvoicePanel.xaml

<UserControl x:Class="PRSDesktop.InvoicePanel"
             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"
             d:DesignHeight="600" d:DesignWidth="800">
    <dynamicGrid:DynamicSplitPanel 
        Anchor="Detail" 
        AnchorWidth="600" 
        View="Combined" 
        AllowableViews="Combined, Master" 
        DetailCaption="Invoice Details" 
        MasterCaption="Invoice List"
        DetailHeight="300">
        <dynamicGrid:DynamicSplitPanel.Header>
            <Border BorderThickness="0.75" BorderBrush="Gray" Background="WhiteSmoke" Padding="5,0">
                <!-- <DockPanel> -->
                    <!-- <Label  -->
                    <!--     Content="Include Paid?"  -->
                    <!--     DockPanel.Dock="Right" -->
                    <!--     HorizontalContentAlignment="Center"  -->
                    <!--     VerticalContentAlignment="Center"/> -->
                    <!-- <CheckBox -->
                    <!--     x:Name="_includePaid" -->
                    <!--     DockPanel.Dock="Right" -->
                    <!--     VerticalContentAlignment="Center" -->
                    <!--     Checked="_includePaid_OnChecked" -->
                    <!--     Unchecked="_includePaid_OnChecked"/> -->
                    <Label
                        Content="Invoice List"
                        DockPanel.Dock="Left"
                        HorizontalContentAlignment="Center"
                        VerticalContentAlignment="Center"/>
                <!-- </DockPanel> -->
            </Border>
        </dynamicGrid:DynamicSplitPanel.Header>
        <dynamicGrid:DynamicSplitPanel.Master>
            <local:InvoiceGrid x:Name="Invoices" Grid.Column="0" Grid.Row="0" Grid.RowSpan="2" />           
        </dynamicGrid:DynamicSplitPanel.Master>
        <dynamicGrid:DynamicSplitPanel.DetailHeader>
            <Border BorderThickness="0.75" BorderBrush="Gray" Background="WhiteSmoke">
                <Label Content="Invoice Details" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
            </Border>
        </dynamicGrid:DynamicSplitPanel.DetailHeader>
        <dynamicGrid:DynamicSplitPanel.Detail>
            <local:InvoiceLineGrid x:Name="Lines" Grid.Column="1" Grid.Row="0" Grid.ColumnSpan="2"/>
        </dynamicGrid:DynamicSplitPanel.Detail>
        <dynamicGrid:DynamicSplitPanel.SecondaryDetail>
            <dynamicGrid:DynamicTabControl TabStripPlacement="Top">
                <dynamicGrid:DynamicTabItem Header="Time">
                    <local:InvoiceAssignmentGrid x:Name="Time"/>
                </dynamicGrid:DynamicTabItem>
                <dynamicGrid:DynamicTabItem Header="Materials">
                    <local:InvoiceStockMovementGrid x:Name="Parts"/>
                </dynamicGrid:DynamicTabItem>
            </dynamicGrid:DynamicTabControl>
        </dynamicGrid:DynamicSplitPanel.SecondaryDetail>
    </dynamicGrid:DynamicSplitPanel>
</UserControl>