ios - MvvmCross UIScrollable を追加

Question

MvvmCross プロジェクトの画面に UIScrollable コントロールを追加する際に問題が発生しています。ビューのサブビューに scrollView コントロールを追加し、その後、助けてくれてありがとうと付け加えました。ビューがロードされたコードは次のとおりです。

 public override void ViewDidLoad()
    {
        View = new UniversalView();

        base.ViewDidLoad();



        this.scrollView = new UIScrollView(new RectangleF(0, 0, this.View.Frame.Width, this.View.Frame.Height - this.NavigationController.NavigationBar.Frame.Height));
        this.View.AddSubview(scrollView);



        var lastName = new UITextField(new RectangleF(0f, 0f, 320f, 40f));
        lastName.Placeholder = "Last Name";
        this.View.AddSubview(lastName);
        var firstName = new UITextField(new RectangleF(0f, 50f, 320f, 40f));
        firstName.Placeholder = "First Name";
        this.View.AddSubview(firstName);
        var middleInitial = new UITextField(new RectangleF(0f, 100f, 320f, 40f));
        middleInitial.Placeholder = "Middle Initial";
        this.View.AddSubview(middleInitial);
        var phoneNumber = new UITextField(new RectangleF(0f, 150f, 320f, 40f));
        phoneNumber.Placeholder = "Phone Number";
        this.View.AddSubview(middleInitial);
        var streetAddress = new UITextField(new RectangleF(0f, 200f, 320f, 40f));
        streetAddress.Placeholder = "Street Address";
        this.View.AddSubview(streetAddress);
        var city = new UITextField(new RectangleF(0f, 250f, 320f, 40f));
        city.Placeholder = "City";
        this.View.AddSubview(city);
        var state = new UITextField(new RectangleF(0f, 200f, 320f, 40f));
        state.Placeholder = "State";
        this.View.AddSubview(state);
        var zip = new UITextField(new RectangleF(0f, 250f, 320f, 40f));
        zip.Placeholder = "Zip Code";
        this.View.AddSubview(zip);
        var date = new UITextField(new RectangleF(0f, 200f, 320f, 40f));
        date.Placeholder = "Date of Appointment";
        this.View.AddSubview(date);
        var agentID = new UITextField(new RectangleF(0f, 250f, 320f, 40f));
        agentID.Placeholder = "Agent ID";
        this.View.AddSubview(agentID);

        var set = this.CreateBindingSet<AddScope, AddScopeViewModel>();
        set.Bind(lastName).To(vm => vm.BeneficiaryLastName);
        set.Bind(firstName).To(vm => vm.BeneficiaryFirstName);
        set.Bind(middleInitial).To(vm => vm.BeneficiaryMiddleInitial);
        set.Bind(phoneNumber).To(vm => vm.BeneficiaryPhone);
        set.Bind(streetAddress).To(vm => vm.BeneficiaryStreetAddress);
        set.Bind(city).To(vm => vm.BeneficiaryCity);
        set.Bind(state).To(vm => vm.BeneficiaryState);
        set.Bind(zip).To(vm => vm.BeneficiaryZip);
        set.Bind(date).To(vm => vm.DateOfAppointment);
        set.Bind(agentID).To(vm => vm.AgentID);
        set.Apply();

    }