Gets or sets the property by which search results should be sorted.
An OntolicaProperty object that represents the sorting to use on the search results.
Although that you can specify any property here then you should stick to simple properties like Author, Date, Rank, Size and Title. There is no guarantee that other properties will work. The SharePoint portal search engine does not support any other properties for sorting the search results.
OntolicaQuery Class | NavigoSystems.Ontolica.SharePoint.Custom Namespace