// initializers protected void Page_Load(object sender, EventArgs e) { NinaSubscriptionsMaster master = this.Master as NinaSubscriptionsMaster; master.setHeaderTitle(settingsHelper.get("title_beheer_cursussen")); userProfile user = master.getLoggedInUserProfile(); if (user == null || user.isAdmin == false) { Response.Redirect("~/Pages/Public/bekijkAanbod.aspx"); }; crud crud = new crud(); locations = crud.getAllLocations(); courseTypes = crud.getAllCourseTypes(); if (IsPostBack) { try { selectedCourseType = crud.selectCourseType(Convert.ToInt32(ddNewCourseType.SelectedValue)); selectedLocation = crud.selectLocation(Convert.ToInt32(ddNewLocation.SelectedValue)); } catch { // objecten blijven null, hierop wordt later gecontroleerd } } else { fillCoursesList(crud); } }