data binding - How can I order Groups in WPF

Question

In WPF, the CollectionViewSource allows for sorting (SortDescriptions) and grouping (GroupDescriptions). However, I can't find a way to order the groups. Is it possible?

Answer 1

<CollectionViewSource x:Key="cvs" Source="{Binding Source={StaticResource animals}, Path=AnimalList}">
    <CollectionViewSource.GroupDescriptions>
        <PropertyGroupDescription PropertyName="Category"/>
    </CollectionViewSource.GroupDescriptions>
    <CollectionViewSource.SortDescriptions>
        <scm:SortDescription PropertyName="Category" />
        <scm:SortDescription PropertyName="Name" />
    </CollectionViewSource.SortDescriptions>
</CollectionViewSource>

Just add two SortDescriptions.Adding two sort descriptions allows us to sort the groups first and then the items within the groups.

For more check here

http://bea.stollnitz.com/blog/?p=17