dynamic and ExpandoObject

ExpandoObject-example.cs

IDictionary<string, object> expando = new ExpandoObject();
expando["foo"] = "bar";

dynamic d = expando;
Console.WriteLine(d.foo); // bar

//Example use case, convert XML payload. loop over the elements, e.g.

var doc = XDocument.Load(file);
IDictionary<string, object> expando = new ExpandoObject();
foreach (var element in doc.Root.Elements())
{
    expando[element.Name.LocalName] = (string) element;
}