Public ReadOnly Property DataOnly As Boolean

Dim instance As DragFillBlockCompletedEventArgs
Dim value As Boolean
 
value = instance.DataOnly

public bool DataOnly {get;}

private void fpSpread1DragFillBlockCompleted(object sender, FarPoint.Win.Spread.DragFillBlockCompletedEventArgs e) 
{
     fpSpread1.ActiveSheet.Cells[0, 0].Text = e.DataOnly.ToString();
}

Private Sub FpSpread1DragFillBlockCompleted(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.DragFillBlockCompletedEventArgs)
Handles FpSpread1.DragFillBlockCompleted
     FpSpread1.ActiveSheet.Cells(0, 0).Text = e.DataOnly.ToString()
End Sub