Public ReadOnly Property Column As Integer

Dim instance As AutoFilteringColumnEventArgs
Dim value As Integer
 
value = instance.Column

public int Column {get;}

private void fpSpread1_AutoFilteringColumn(object sender, FarPoint.Win.Spread.AutoFilteringColumnEventArgs e) 
{ 
e.Sheet.Columns(e.Column).BackColor = Color.Yellow;
} 

Private Sub FpSpread1_AutoFilteringColumn(ByVal sender As Object, ByVal e As
FarPoint.Win.Spread.AutoFilteringColumnEventArgs) Handles FpSpread1.AutoFilteringColumn
e.Sheet.Columns(e.Column).BackColor = Color.Yellow
End Sub