Item TypeReports seem to have two qualifiers for sorting: order and priority.
When we design a Report interactively we can set the sort order to be ascending or descending...
Note that the dialog does not refer to priority.
A SortingGroupNode class is qualfied with a SortingRule (WCharCP columnName, int priority). It makes no mention of sort order.
How are the user's sort order and the programmer's sort priority related?