prs/prs.desktop/Panels/Jobs/Requisitions/JobRequisitionPanel.xaml

<UserControl
    x:Class="PRSDesktop.JobRequisitionPanel"
    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="450" d:DesignWidth="800">
    
    <dynamicgrid:DynamicSplitPanel 
        x:Name="SplitPanel"  
        AnchorWidth="500"
        MasterCaption="Requisition List"
        View="Combined" 
        AllowableViews="Detail,Combined"
        OnChanged="SplitPanel_OnChanged">

        <dynamicgrid:DynamicSplitPanel.Header>
            <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke" Height="25">
                <Label Content="Requisitions" HorizontalContentAlignment="Center"
                       VerticalContentAlignment="Center" />
            </Border>
        </dynamicgrid:DynamicSplitPanel.Header>

        <dynamicgrid:DynamicSplitPanel.Master>
            <local:JobRequisitionGrid x:Name="Requisitions" OnSelectItem="Requisitions_OnSelectItem" />
        </dynamicgrid:DynamicSplitPanel.Master>
        
        <dynamicgrid:DynamicSplitPanel.DetailHeader>
            <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke" Height="25">
                <Label Content="Requisition Items" HorizontalContentAlignment="Center"
                       VerticalContentAlignment="Center" />
            </Border>
        </dynamicgrid:DynamicSplitPanel.DetailHeader>

        <dynamicgrid:DynamicSplitPanel.Detail>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition x:Name="RequisitionsColumn" Width="0" />
                    <ColumnDefinition x:Name="SummaryColumn" Width="0" />
                </Grid.ColumnDefinitions>
                <local:JobRequisitionItemGrid 
                    x:Name="Items"
                    Grid.Column="0"/>
                <local:ReservationManagementItemGrid  
                    x:Name="Summary" 
                    ColumnsTag="JobRequisitionSummary"
                    Grid.Column="1"
                    ShowColors="True"/>
            </Grid>
        </dynamicgrid:DynamicSplitPanel.Detail>

    </dynamicgrid:DynamicSplitPanel>

</UserControl>