private void SetMailToLabel(string value) { if (Label != null) { Label.Controls.Clear(); Control label; if (IsNullOrWhiteSpace(value)) { label = new LiteralControl(Description); } else { var tooltip = (HyperlinkToolTip ?? "Send mail to {email}").Replace("{email}", value); label = new HyperLink { Text = Description, NavigateUrl = VotePage.NormalizeEmailHRef(value), ToolTip = tooltip }.AddCssClasses("tiptip"); } label.AddTo(Label); } }