如何创建具有动态属性的类（Expandoobject？）

Question

I have a partial class named Exam. The class structure shown as below:

public partial class Exam 
{
    public string ID { set; get; } //default
    public string Name { set; get; } //default
}

After executed the store procedure, the retrieved data should contains one or more test methods as shown as following structure. I would like to put the retrieved data to dynamic object Exam. How can I create a dynamic object for object Exam and how can i bind the data to this dynamic object?

ID, Name, Test1, Test2, Test3....
1, Peter, Y, N, Y
1, John, N, Y, Y

public virtual ObjectResult<Exam> sp_exam()
{
    return  ((IObjectContextAdapter)this).
              ObjectContext.ExecuteFunction<Exam>("ConnectionEntities.sp__exam");
}

Answer 1

AFAIK ExpandoObject is just a syntax sugar for a simple dictionary. So you can write:

public partial class Exam {
    public string ID { set; get; } //default

    public string Name { set; get; } //default

    public readonly Dictionary<string, object> ExtraProperties = new Dictionary<string, object>();
}

but I guess you just have a bad object model.