[]
Gets the sort type.
This value indicates that the sort field evaluates cells by icon.
public override SortOnType SortOn { get; }
Public Overrides ReadOnly Property SortOn As SortOnType
IIcon icon = workbook.IconSets[IconSetType.Icon3Arrows][0];
IIconSortField sortField = new IconSortField(worksheet.Range["A2:A4"], icon);
SortOnType sortOn = sortField.SortOn;