The Office themes are located in the ThemePack assemblies (Xceed.Wpf.DataGrid.ThemePack.[#].dll), which must be included in your references. You can then apply them to the grid by setting the View.Theme property using property element syntax:
<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid">
<Grid.Resources>
<xcdg:DataGridCollectionViewSource x:Key="cvs_orders"
Source="{Binding Source={x:Static Application.Current},
Path=Orders}"/>
</Grid.Resources>
<xcdg:DataGridControl x:Name="OrdersGrid"
ItemsSource="{Binding Source={StaticResource cvs_orders}}">
<xcdg:DataGridControl.View>
<xcdg:CardView>
<xcdg:CardView.Theme>
<xcdg:Office2007BlueTheme/>
</xcdg:CardView.Theme>
</xcdg:CardView>
</xcdg:DataGridControl.View>
</xcdg:DataGridControl>
</Grid>
You can look in the documentation under Basic Concepts\Appearance\Views and Themes for a list of the theme names. Also note that the themes located in the theme packs require a Pro license key (either trial or registered).
Technical Writer - Xceed Software
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