Binding Issue WPToolkit ListPicker with SQL Server CE 3.5 DataContext Class Windows Phone 7.5

Question

Well, well, this is my very first question in StackOverflow! I've been using this site since ages but I never had to ask something because I always found the answer in someone else's question lol Apparently this is not the case anymore lol.

Anyway, I'm trying to bind a list of a custom class (that is decorated to be used with the DataContext that manages a local SQL Server CE 3.5 database - natively included in Windows Phone 7.5) to a ListPicker control from the WPToolkit and strangely I can't see the value of the element I bound in the ListPicker (I made sure the list is populated).

Here's the class:

[Table(Name = "Rubriques")]
class Rubrique
{
    [Column(IsPrimaryKey = true, DbType = "TINYINT", CanBeNull = false)]
    public Byte Id { get; set; }

    [Column(DbType = "NVARCHAR(40)")]
    public String Nom { get; set; }
}

Here's the DataContext:

class IntermediaireDataContext : DataContext
{
    public IntermediaireDataContext() : base("Data Source='isostore:/IntermediaireBDD.sdf';")
    {
    }

    public Table<Rubrique> Rubriques
    {
        get { return this.GetTable<Rubrique>(); }
    }
}

Here's the code I use to bind the list to the ListPicker:

using (IntermediaireDataContext context = new IntermediaireDataContext())
{
    rubs = (from x in context.Rubriques select x).ToList<Rubrique>(); //rubs already exists
    RubListPicker.ItemsSource = rubs;
}

Here's the XAML:

<toolkit:ListPicker x:Name="RubListPicker" SelectionMode="Single" FullModeHeader="Rubriques">
    <toolkit:ListPicker.ItemTemplate>
        <DataTemplate>
            <StackPanel>
                <TextBlock Text="{Binding Nom}" FontSize="16"/>
            </StackPanel>
        </DataTemplate>
    </toolkit:ListPicker.ItemTemplate>
    <toolkit:ListPicker.FullModeItemTemplate>
        <DataTemplate>
            <StackPanel>
                <TextBlock Text="{Binding Nom}" FontSize="26" FontWeight="Bold"/>
            </StackPanel>
        </DataTemplate>
    </toolkit:ListPicker.FullModeItemTemplate>
</toolkit:ListPicker>

The list of Rubrique rubs gets populated and is set as ItemsSource to RubListPicker and if I remove the Text="{Binding Nom}" of the TextBlock in the DataTemplate I can see the name of the class MyNamespace.Rubrique in every element in the ListPicker.

I can't figure out what is the problem with the data binding... Any help would be greatly appreciated :)

I'm using the last version of WPToolkit 4.2012.10.30 from NuGet in Visual Studio 2012 Ultimate with the Windows Phone 8 SDK.

Thanks for taking the time to read this!

Regards,

Ali

---

EDIT

I found the solution and it made me laugh hard lol.

I had to change de security level of my class Rubrique; When I did set it to public everything worked fine.

Actually, the ListPicker had access to the List<Rubrique> but could not access the value of each Rubrique.

A good one to remember for the future: Always check the security level of your classes/attributes/methods when using external libraries.

Answer 1

This is my first question ever in StackOverflow and I get to answer it myself: Like A Boss :D

So the trick was to make my class public so it can be accessed by the ListPicker control from WPToolkit ;)

Cheers!