Serialization error when restoring state in Windows Store App

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C#

XAML

Metro-design

Hello all,

When attempting to serialize my application data, in a Windows Store App I get the following error:

{"Type 'MyObject' with data contract name '' is not expected. Consider using a DataContractResolver or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer."}

I have already tried to decorate the class in question using the relevant tags, in the following way:

[DataContract]
public class SimpleObject
{
    [DataMember]
    private string _Name;
    [DataMember]
    public string Name
    {
        //set the person name
        set { this._Name = value; }
        //get the person name
        get { return this._Name; }
    }

}

As well as this, in the SuspensionManager class I explicitly added my custom object to the _knownTypes list inside the SaveAsync() method in the following way:

_knownTypes.Add(typeof(SimpleObject));

However, I am still getting this error. Does anyone have any suggestions?

While researching this problem I have read the following posts:

Storing something other than a string in SuspensionManager.SessionState

SerializationException serializing newtonsoft jobject with DataContractSerializer

Thanks in advance for any suggestions.

Cheers,

Larry


EDIT:

I have found a great article (finally) with a worked example. I've tweaked it so it performs the serialization on termination of the app but the actual serialization code is clean and seems to work well.

Example Metro app /WinRT: Serializing and deseralizing objects using XMLSerializer to StorageFile and LocalFolder using generics and async/await threading