Creating a dynamic anonymous types variables

Question

Can I create an anonymous type variable and later on add more Properties?

E.g. var x = new { Name = "Ahmed" }; and want to add Age to it? how can I do this?

Another question: i saw on some blogs a type AnonymousType what is the name space for this class? here is am example http://www.codeproject.com/KB/cs/AnonymousTypesInCSharp.aspx

Answer 1

First question - you can't.

Second question - AnonymousType is the type the author of that article created. You have to download the source for his project to use that type.