Alternative way to get variable in code behind without x:Name

Hi All,

Quick question I know it might sound stupid but I've been creating XAML pages a lot but now I want to try to approach it from using a JSON data to create a form based layout. So I have created a JSON and its classes and populated it with dummy data. the JSON has load of questions and a field to determine what the control will be (Entry, Datepicker, Picker, Editor etc etc.) I create the layout on load but when i create a button at the bottom to send that data back into a JSON object to upload to an API I am not sure how to get that form data back as you cant set the x:Name property in code behind and in my save function it can't see the control variable. I hope this makes sense and below is my code i use to bring back the form layout.

`public void LoadFormTemplate()
    {
        var generate = new CreateDummyData().CreateTestData();

        var ParentLayout = new StackLayout();
        foreach (Questions q in generate.Questions)
        {
            if (q.QuestionType == "Entry")
            {
                var ChildLayout = new Grid();

                ChildLayout.Padding = new Thickness(20);

                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.RowDefinitions.Add(new RowDefinition());

                Label label = new Label { Text = q.QuestionName };
                Entry entry = new Entry { StyleId = "Question1Entry" };

                Grid.SetRow(label, 0);
                Grid.SetRow(entry, 0);
                Grid.SetColumn(label, 0);
                Grid.SetColumn(entry, 1);

                ChildLayout.Children.Add(label);
                ChildLayout.Children.Add(entry);

                ParentLayout.Children.Add(ChildLayout);
            }
            else if (q.QuestionType == "Picker")
            {

                var ChildLayout = new Grid();
                ChildLayout.Padding = new Thickness(20);

                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.RowDefinitions.Add(new RowDefinition());

                Label label = new Label { Text = q.QuestionName };
                Picker entry = new Picker();

                foreach (Fields f in q.Fields)
                {
                    entry.Items.Add(f.Field);
                }

                entry.Title = "Please Select";

                Grid.SetRow(label, 0);
                Grid.SetRow(entry, 0);
                Grid.SetColumn(label, 0);
                Grid.SetColumn(entry, 1);

                ChildLayout.Children.Add(label);
                ChildLayout.Children.Add(entry);
                ParentLayout.Children.Add(ChildLayout);

            }
            else if (q.QuestionType == "DatePicker")
            {
                var ChildLayout = new Grid();
                ChildLayout.Padding = new Thickness(20);

                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.RowDefinitions.Add(new RowDefinition());

                Label label = new Label { Text = q.QuestionName };
                DatePicker entry = new DatePicker { };

                Grid.SetRow(label, 0);
                Grid.SetRow(entry, 0);
                Grid.SetColumn(label, 0);
                Grid.SetColumn(entry, 1);

                ChildLayout.Children.Add(label);
                ChildLayout.Children.Add(entry);

                ParentLayout.Children.Add(ChildLayout);

            }
            else if (q.QuestionType == "Editor")
            {
                var ChildLayout = new Grid();
                ChildLayout.Padding = new Thickness(20);

                ChildLayout.ColumnDefinitions.Add(new ColumnDefinition());
                ChildLayout.RowDefinitions.Add(new RowDefinition());
                ChildLayout.RowDefinitions.Add(new RowDefinition());

                Label label = new Label { Text = q.QuestionName };
                Editor entry = new Editor { HeightRequest = 100 };

                Grid.SetRow(label, 0);
                Grid.SetRow(entry, 1);
                Grid.SetColumn(label, 0);
                Grid.SetColumn(entry, 0);
                entry.StyleId = "Editorquestion";

                ChildLayout.Children.Add(label);
                ChildLayout.Children.Add(entry);
                ParentLayout.Children.Add(ChildLayout);
            }
            this.Content = ParentLayout;
        }

        var submit = new Button { Text = "Submit Vehicle Check" };

        ParentLayout.Children.Add(submit);

        submit.Clicked += SaveJson;
    }

    private async void SaveJson(object sender, EventArgs e)
    {
       var result = await DisplayAlert("Farmer","Are you sure you want to submit the vehicle check","Yes","No");

        if (result)
        {

        }
    }`