C# Anonymous Type To Expando

AnonymousTypeToExpando.cs

public class ObjectExtensions
{
    public static IDictionary<string, object> AnonymousTypeToExpando( this object obj )
    {
       IDictionary<string, object> retVal = new ExpandoObject( );

       if ( obj != null )
       {
         foreach ( PropertyDescriptor prop in TypeDescriptor.GetProperties( obj.GetType( ) ) )
         {
           retVal.Add( prop.Name, prop.GetValue( obj ) );
         }
       }

      return retVal;
    }
}