<data:DataGrid x:Name="dataGrid5" 
    Height="125" Margin="0,5,0,10"
    AutoGenerateColumns="False"
    RowBackground="Azure"
    AlternatingRowBackground="LightSteelBlue">
    <data:DataGrid.Columns>
        <!-- Name Column -->
        <data:DataGridTemplateColumn Header="Name">
            <data:DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
                        <TextBlock Padding="5,0,5,0"
                            Text="{Binding FirstName}"/>
                        <TextBlock Text="{Binding LastName}"/>
                    </StackPanel>
                </DataTemplate>
            </data:DataGridTemplateColumn.CellTemplate> 
            <data:DataGridTemplateColumn.CellEditingTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBox Text="{Binding FirstName}" BorderThickness="0"/>
                        <TextBox Text="{Binding LastName}" BorderThickness="0"/>
                    </StackPanel>
                </DataTemplate>
            </data:DataGridTemplateColumn.CellEditingTemplate> 
        </data:DataGridTemplateColumn>              
        <!-- Address Column -->
        <data:DataGridTextColumn
            Header="Address" Width="300"
            Binding="{Binding Address}" />
    </data:DataGrid.Columns>
</data:DataGrid>