Pass/Receive <list> between pages and fill listview/richtextbox C# Windows Phone 8.1

Question

I'm creating a little app to Win. Phone 8.1, that the user select a number of checkboxes, then, the app does a Foreach to verify which checkbox is selected, then the app gets the checkboxes content (text), fills a <list> and send the list to another page, and in the page 2, fill a listview control.

Page 1

List<ClassDados> lista = new List<ClassDados>();

ClassDados cDados = new ClassDados();
foreach (CheckBox c in checkboxes)
{
    if (c.IsChecked == true)
    {                  
        cDados.Pedido = c.Content.ToString();
        lista.Add(cDados);
    }
}

Frame.Navigate(typeof(Carrinho), (lista));

My Class:

class ClassDados
{
    public string Pedido { get; set; }
    public int Valor { get; set; }
}

Page 2

public sealed partial class Carrinho : Page
{
    List<ClassDados> lista = new List<ClassDados>();

    public Carrinho()
    {
        this.InitializeComponent();
    }

    protected override void OnNavigatedTo(NavigationEventArgs e)
    {
        ClassDados c = e.Parameter as ClassDados;
        Cardapio car = e.Parameter as Cardapio;

    }
    protected override void OnNavigatedTo(NavigationEventArgs e)
    {
        ClassDados c = e.Parameter as ClassDados;
        Cardapio car = e.Parameter as Cardapio;

    }
}

My point is: receive the data of page 1 and fill listview/richtexbox control with the data of page 1, but I can't do this, because my way to do this is the same on C# Windows Forms, but is different to windows phone, anyone can help me?

Answer 1

The problem is that you want to receive an object of type ClassDados on Page 2, although on Page 1 you pass a List of ClassDados List<ClassDados> lista. So on Page 2 write List<ClassDados> lista = e.Parameter as List<ClassDados>. That should do the trick. Also, make sure you check for null when retrieving object from e.Parameter!