If I have a collection of classes how can I return a collection of a single attribute of all the classes?

Imagine I have 20 People objects.

IQueryable<Person> People;

How could I return a List of all 开发者_Python百科the Peoples names using a linq query?

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IEnumerable<String> names = People.Select(p => p.Name);

This assumes that a the property is of type String and is called Name.

edit: If you specifically want a list, you can add a ToList() call on the end:

List<String> names = People.Select(p => p.Name).ToList();

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var names = from person in People select person.Name