Intellisense will not show suggestions, since the data is dynamic, and it doesn't know what to show.
But you know what it contains. So just code and you'll be fine.
Also, you don't need dynamic objects here. Since what you want is well-defined just define your class with necessary properties and methods and then create the list:
List list = new List();
And then Intellisense will become intelligent enough to show the suggestions ;)
