Gets or sets a value that indicates whether the list of items (after applying the sort and filters, if any) is already in the correct order for grouping.
Assembly: PresentationFramework (in PresentationFramework.dll)
Setting this property to true informs the view that the list of items is already in the correct order for grouping and allows the view to use a more efficient algorithm to build the groups. The data is in the correct order if:
Available since 3.0