次のサンプルコードは、フィルタ適用列の背景色を変更します。
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