Public Sub SetColumnSortIndicator( _
   ByVal column As Integer, _
   ByVal order As SortIndicator _
) 

Dim instance As SheetView
Dim column As Integer
Dim order As SortIndicator
 
instance.SetColumnSortIndicator(column, order)

public void SetColumnSortIndicator( 
   int column,
   SortIndicator order
)

FarPoint.Web.Spread.SheetView sv;
sv = FpSpread1.ActiveSheetView;
sv.AllowSort = true;
sv.SetColumnSortIndicator(1, FarPoint.Web.Spread.Model.SortIndicator.Descending);

Dim sv As FarPoint.Web.Spread.SheetView
sv = FpSpread1.ActiveSheetView
sv.AllowSort = True
sv.SetColumnSortIndicator(1, FarPoint.Web.Spread.Model.SortIndicator.Descending)