@(Html.Kendo().DropDownList()
                            .Name("CategoryId")
                            .OptionLabel("Selecteer een categorie")
                            .DataSource(ds => ds.Read(read => read.Action("GetQuestionCategories", "Questions").Data("getParentCategoryId")).ServerFiltering(true))
                            .DataValueField("Value")
                            .DataTextField("Text")
                            .Events(events => events.Change("reloadLearningObjectives"))
                            .HtmlAttributes(new { @class = "form-control wide-full" })
                )