Public ReadOnly Property NumberToCopy As Integer

Dim instance As DragFillBlockCompletedEventArgs
Dim value As Integer
 
value = instance.NumberToCopy

public int NumberToCopy {get;}

private void fpSpread1DragFillBlockCompleted(object sender, FarPoint.Win.Spread.DragFillBlockCompletedEventArgs e) 
{
     MessageBox.Show(e.NumberToCopy.ToString());
}

Private Sub FpSpread1DragFillBlockCompleted(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.DragFillBlockCompletedEventArgs)
Handles FpSpread1.DragFillBlockCompleted
     MessageBox.Show(e.NumberToCopy.ToString())
End Sub