TreeView event for child re-ordering
The UWP TreeView control lacks an event to notify that child nodes have been re-ordered due to a drag and drop. The DragItemsCompleted event is fired but there is no direct information in the arguments about whether the child ordering has changed or whether a child has been added.
Yulia Klein commented
@sjb - TreeView and other Xaml controls have been open sourced, and the best place to propose changes to controls is now on our https://github.com/Microsoft/microsoft-ui-xaml repo. Would you mind creating a new feature request using the template on GitHub, https://github.com/Microsoft/microsoft-ui-xaml/issues/new/choose
Can you please share more information on the ask: Do you want to know whether the Drag/Drop operation that was completed was a 'Reorder' versus a child added from outside of the current TreeView?