Sub Swap( _
   ByVal fromRow As Integer, _
   ByVal fromColumn As Integer, _
   ByVal toRow As Integer, _
   ByVal toColumn As Integer, _
   ByVal rowCount As Integer, _
   ByVal columnCount As Integer _
) 

Dim instance As IRangeSupport
Dim fromRow As Integer
Dim fromColumn As Integer
Dim toRow As Integer
Dim toColumn As Integer
Dim rowCount As Integer
Dim columnCount As Integer
 
instance.Swap(fromRow, fromColumn, toRow, toColumn, rowCount, columnCount)

void Swap( 
   int fromRow,
   int fromColumn,
   int toRow,
   int toColumn,
   int rowCount,
   int columnCount
)

private void Button1Click(object sender, System.EventArgs e)
{
    FarPoint.Web.Spread.Model.IRangeSupport irs;
    irs = (FarPoint.Web.Spread.Model.IRangeSupport)FpSpread1.ActiveSheetView.DataModel;
    irs.Swap(0, 0, 2, 2, 2, 2); 
}

Private Sub Button1Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim irs As FarPoint.Web.Spread.Model.IRangeSupport
    irs = FpSpread1.ActiveSheetView.DataModel
    irs.Swap(0, 0, 2, 2, 2, 2)
End Sub