How to apply sorting by Summary along with sorting by the Column

This example shows how to sort group summary items along with the column that the summary is aligned with.

To add this functionality, you can use the proposed helper class (GroupSummaryOptions) in your solution. Just set the attached property of the Grid to "True".

Note that currently, DXGrid doesn't support sorting by multiple summaries in a single column out of the box. To implement it manually, handle the CustomColumnSort event.