prs/prs.desktop/Panels/DataEntry/DataEntryPanel.xaml

<UserControl x:Class="PRSDesktop.DataEntryPanel"
             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:dynamic="clr-namespace:InABox.DynamicGrid;assembly=InABox.Wpf"
             xmlns:local="clr-namespace:PRSDesktop"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <dynamic:DynamicSplitPanel View="Combined" AnchorWidth="600" Anchor="Detail" AllowableViews="Combined">
            
            <dynamic:DynamicSplitPanel.Header>
                <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke">
                    <Label Content="Available Documents" HorizontalContentAlignment="Center"
                       VerticalContentAlignment="Center" />
                </Border>
            </dynamic:DynamicSplitPanel.Header>
            
            <dynamic:DynamicSplitPanel.Master>
                <local:ScanPanel x:Name="ScanPanel" OnSelectAppliesTo="ScanPanel_OnSelectAppliesTo"/>
            </dynamic:DynamicSplitPanel.Master>
            
            <dynamic:DynamicSplitPanel.DetailHeader>
                <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke">
                    <DockPanel x:Name="DetailHeader">
                        <Label Content="Type"
                               Margin="5"
                              DockPanel.Dock="Left"/>
                        <ComboBox Name="TypeBox"
                                  Margin="0,5,5,5"
                                  Width="120"
                                  DockPanel.Dock="Left"
                                  VerticalContentAlignment="Center"
                                  SelectionChanged="TypeBox_SelectionChanged"/>
                        <Label Content="Item"
                               Margin="5"
                               DockPanel.Dock="Left"/>                       
                    </DockPanel>
                </Border>
            </dynamic:DynamicSplitPanel.DetailHeader>
            
            <dynamic:DynamicSplitPanel.Detail>
                <Border BorderBrush="Gray" BorderThickness="0.75" x:Name="DetailBorder">
                    <dynamic:EmbeddedDynamicEditorForm x:Name="Editor"/>
                </Border>
            </dynamic:DynamicSplitPanel.Detail>
        </dynamic:DynamicSplitPanel>
    </Grid>
</UserControl>