Public ReadOnly Property Sheet As SheetView

Dim instance As AutoFilteringColumnEventArgs
Dim value As SheetView
 
value = instance.Sheet

public SheetView Sheet {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