Facebook C# SDK - .NET 3.5 & Dynamic objects

Question

I have downloaded the Graph C# SDK for facebook, the examples are very helpful and easy to understand however i come unstuck when trying to use the dynamic object type as the re

Answer 1

Building on some of the other answers here, the dynamic objects are really JSON objects that are returned from the facebook api. The SDK uses dynamic type to create a nicer interface to the underlying data.

I didn't like the idea of casting the objects to IDictionary each time so I took it a step further and created a facade object that provides a strongly-typed access method to the data.

public class FBPerson : FBBase
{
    #region constructor
    public FBPerson(object personObject)
        : base(personObject)
    {
    }
    #endregion

    #region Properties
    public string first_name
    {
        get { return ExtractValueAsString("first_name"); }
    }
    public string last_name
    {
        get { return ExtractValueAsString("last_name"); }
    }
    public string name
    {
        get { return ExtractValueAsString("name"); }
    }
    public string email
    {
        get { return ExtractValueAsString("email"); }
    }
    public string id
    {
        get { return ExtractValueAsString("id"); }
    }
    public string link
    {
        get { return ExtractValueAsString("link"); }
    }
    public string username
    {
        get { return ExtractValueAsString("username"); }
    }
    public string location
    {
        get { return ExtractValueAsString("location"); }
    }
    public string gender
    {
        get { return ExtractValueAsString("gender"); }
    }
    public string timezone
    {
        get { return ExtractValueAsString("timezone"); }
    }
    public string locale
    {
        get { return ExtractValueAsString("locale"); }
    }
    public string verified
    {
        get { return ExtractValueAsString("verified"); }
    }
    public string updated_time
    {
        get { return ExtractValueAsString("updated_time"); }
    }
    #endregion

}

And the base class (so you can create facades for other SDK objects)...

public class FBBase
{
    private IDictionary fbCollection = null;
    public FBBase(object collection)
    {
        fbCollection = (IDictionary)collection;
    }

    protected string ExtractValueAsString(string value)
    {
        Validate();
        return fbCollection[value].ToString();
    }
    protected void Validate()
    {
        if (fbCollection == null)
        {
            throw new InvalidOperationException("null collection object");
        }
    }
}