protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { bool wasteInRequest = LinkSearchBuilder.HasWasteTypeFilter(Request) || LinkSearchBuilder.HasWasteTreatmentFilter(Request) || LinkSearchBuilder.HasWasteReceiverFilter(Request); bool collapse = !wasteInRequest; this.cpeWaste.Collapsed = collapse; this.cpeWaste.ClientState = collapse.ToString(); togglePanel(collapse); } }