SortPosition determines the place of this control in the sort order
Member of List Label Column (PRIM_MD.ListLabel)
Data Type - Integer
SortPosition determines how the data is sorted within the list. The control with a SortPosition of 1 will be the primary sort. The sort heirarchy is dynamic. If a new control is added to the sort at position 1, all existing SortPositions will increment by 1. Setting SortPosition to 0 will remove a control from the sort hierarchy.
Febuary 18 V14SP2