How do I implement grouping and sorting on multiple fields

Hello Ward,

Thank you for the provided images.

Indeed you can sort the data multiple times. You can use the SortOrder property to define whether you want the items in descending or ascending order.

To sort the items inside a group you can use the following code:

<telerik:RadListView.SortDescriptors>
           <telerik:ListViewPropertySortDescriptor PropertyName="Name" SortOrder="Descending"/>
 </telerik:RadListView.SortDescriptors>

To sort the groups of the ListView use the following code:

<telerik:RadListView.GroupDescriptors>
        <telerik:ListViewPropertyGroupDescriptor PropertyName="Index" SortOrder="Descending"/>
</telerik:RadListView.GroupDescriptors>

For more detailed information about sorting go to the following link leading to our ListView Sorting documentation: 
https://docs.telerik.com/devtools/maui/controls/listview/sorting 

For more details about group sorting follow the link leading to our ListView Grouping documentation:
https://docs.telerik.com/devtools/maui/controls/listview/grouping/property-group-descriptor#propertygroupdescriptor 

I hope the provided information helps.

Regards,
Antoan
Progress Telerik