New Post: Regarding AdventureWorks.Shopper - SessionStateService.RegisterKnownType?

Hi,

I'm Serializing a ObservableCollection:

private ObservableCollection<Models.WorkSenario> workingSenarios;
public ObservableCollection<Models.WorkSenario> _WorkingSenarios
{
    get { return this.workingSenarios; }
    set
    {
        SetProperty(ref this.workingSenarios, value);
    }
}

...my class:

[System.Runtime.Serialization.DataContract(Name = "WorkSenario")]
public class WorkSenario
{
    public Models.WritingMenu WorkingSenario { get; set; }
    public int MainViewId { get; set; }
    public CoreDispatcher MainDispatcher { get; set; }
    public CoreDispatcher Dispatcher { get; set; }
    public CoreWindow Window { get; set; }
    [System.Runtime.Serialization.DataMember]
    public string Title { get; set; }
    public int ViewId { get; set; }
    [System.Runtime.Serialization.DataMember]
    public bool Released { get; set; }
    [System.Runtime.Serialization.DataMember]
    public bool Consolidated { get; set; }
}

...using:

/// <summary>Serializes an object and write to file in specified storage strategy</summary>
/// <typeparam name="T">Specified type of object to serialize</typeparam>
/// <param name="key">Path to the file in storage</param>
/// <param name="value">Instance of object to be serialized and written</param>
/// <param name="location">Location storage strategy</param>
public static async Task<bool> WriteFileAsync<T>(string key, T value, StorageStrategies location = StorageStrategies.Local)
{
    // create file
    var _File = await CreateFileAsync(key, location, Windows.Storage.CreationCollisionOption.ReplaceExisting);
    // convert to string
    var _String = Serialize(value);
    // save string to file
    await Windows.Storage.FileIO.WriteTextAsync(_File, _String);
    // result
    return await FileExistsAsync(key, location);
}

..and was wondering if this does the same thing:

protected override void OnRegisterKnownTypesForSerialization()
{
    // Set up the list of known types for the SuspensionManager
    .
    ..
    ...
    SessionStateService.RegisterKnownType(typeof(Product));
    SessionStateService.RegisterKnownType(typeof(Collection<Product>));
}

...for the class:

public class Product
{
    public string ProductNumber { get; set; }
    public string Title { get; set; }
    public string Description { get; set; }
    public Uri ImageUri { get; set; }
    public int SubcategoryId { get; set; }
    public double ListPrice { get; set; }
    public double DiscountPercentage { get; set; }
    public double Weight { get; set; }
    public string Color { get; set; }
    public string Currency { get; set; }
}

..without using a DataContract, because I want to use all of Prism's built in capabilities before using standard coding. Secondly) would explain how this works please?

I'm guessing this is how it works?:

public class SearchResultsPageViewModel : ViewModel
{
    .
    ..
    ...
    
    [RestorableState]
    public static Collection<Product> PreviousResults { get; private set; }

Thanks!...