Aqui o código do datagrid com linha em detalhes, gostaria de adc tanto a linha como o detalhes dela, mas não fica disponivel o detalhes p/ adicionar dados
<Window x:Class="WpfApplication2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:dg="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit"
xmlns:primitives="clr-namespace:Microsoft.Windows.Controls.Primitives;assembly=WPFToolkit"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" PreviewKeyDown="Window_PreviewKeyDown" WindowState="Maximized" Loaded="Window_Loaded">
<Window.Resources>
<Style TargetType="primitives:DataGridColumnHeader" x:Key="columnHeaderStyle">
<Setter Property="Background">
<Setter.Value>
<LinearGradientBrush StartPoint="0.5,0"
EndPoint="0.5,1" >
<LinearGradientBrush.GradientStops>
<GradientStop Color="Navy" Offset="0" />
<GradientStop Color="LightBlue" Offset="1" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="White" />
</Style>
</Window.Resources>
<dg:DataGrid x:Name="dataGrid" AutoGenerateColumns="False"
AlternationCount="2" SelectionChanged="dataGrid_SelectionChanged">
<dg:DataGrid.Columns>
<dg:DataGridTextColumn Header="Cod Produto"
Binding="{Binding Path=TESTE1}" />
<dg:DataGridTextColumn Header="Descricao"
Binding="{Binding Path=TESTE2}" />
</dg:DataGrid.Columns>
<dg:DataGrid.RowDetailsTemplate>
<DataTemplate>
<dg:DataGrid
AutoGenerateColumns="False"
CanUserAddRows="True" CanUserDeleteRows="True"
AlternationCount="2"
ColumnHeaderStyle="{StaticResource
columnHeaderStyle}"
HeadersVisibility="All"
ColumnWidth="100"
HorizontalGridLinesBrush="#DDDDDD"
VerticalGridLinesBrush="#DDDDDD">
<dg:DataGrid.Columns>
<dg:DataGridTextColumn Header="Lote"
Binding="{Binding Path=TESTE1}"
IsReadOnly="False"/>
</dg:DataGrid.Columns>
</dg:DataGrid>
</DataTemplate>
</dg:DataGrid.RowDetailsTemplate>
</dg:DataGrid>