prs/prs.desktop/Panels/Customers/CustomerPanel.xaml

<UserControl x:Class="PRSDesktop.CustomerPanel"
             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:dynamicGrid="clr-namespace:InABox.DynamicGrid;assembly=InABox.Wpf"
             xmlns:local="clr-namespace:PRSDesktop"
             mc:Ignorable="d"
             d:DesignHeight="300" d:DesignWidth="1000">
    <dynamicGrid:DynamicSplitPanel x:Name="SplitPanel" View="Combined" AnchorWidth="500" Anchor="Detail" MasterCaption="Customer List"
                                   DetailCaption="Customer Details" OnChanged="SplitPanel_OnChanged">

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

        <dynamicGrid:DynamicSplitPanel.Master>
            <local:CustomerGrid Grid.Column="0" Grid.Row="1" Grid.RowSpan="2" x:Name="Customers" OnSelectItem="Customers_OnOnSelectItem" />
        </dynamicGrid:DynamicSplitPanel.Master>

        <dynamicGrid:DynamicSplitPanel.Detail>

            <dynamicGrid:DynamicTabControl x:Name="CustomerDetails" SelectionChanged="CustomerDetails_SelectionChanged"
                                           BorderThickness="0" Background="WhiteSmoke" >
                
                <dynamicGrid:DynamicTabItem x:Name="Contacts" Header="Contacts">
                    <local:CustomerContactGrid x:Name="CustomerContacts" />
                </dynamicGrid:DynamicTabItem>
                
                <dynamicGrid:DynamicTabItem x:Name="Spreadsheets" Header="Spreadsheets">
                    <local:CustomerSpreadsheetGrid x:Name="CustomerSpreadsheets" />
                </dynamicGrid:DynamicTabItem>                
                
                <dynamicGrid:DynamicTabItem x:Name="Activities" Header="Activities">
                    <local:CustomerActivityGrid x:Name="CustomerActivities" />
                </dynamicGrid:DynamicTabItem>
                
                <dynamicGrid:DynamicTabItem x:Name="Products" Header="Products">
                    <local:CustomerProductGrid x:Name="CustomerProducts" />
                </dynamicGrid:DynamicTabItem>

            </dynamicGrid:DynamicTabControl>

        </dynamicGrid:DynamicSplitPanel.Detail>

    </dynamicGrid:DynamicSplitPanel>
</UserControl>