Public ReadOnly Property ShowIndicator As Boolean

Dim instance As AutoSortedColumnEventArgs
Dim value As Boolean
 
value = instance.ShowIndicator

public bool ShowIndicator {get;}

private void button1Click(object sender, System.EventArgs e)
{
     fpSpread1.ActiveSheet.AutoSortColumn(0);
}

private void fpSpread1AutoSortedColumn(object sender, FarPoint.Win.Spread.AutoSortedColumnEventArgs e)
{
     MessageBox.Show(e.ShowIndicator.ToString());
}

Private Sub Button1Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
     FpSpread1.ActiveSheet.AutoSortColumn(0)
End Sub

Private Sub FpSpread1AutoSortedColumn(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.AutoSortedColumnEventArgs) Handles
FpSpread1.AutoSortedColumn
     MessageBox.Show(e.ShowIndicator.ToString())
End Sub