Quickly create a Dictionary using Linq to Objects

When working with collections or lists, sometimes you just need to get a simple dictionary.

There are a number of ways to do this, but the ToDictionary method seems promising.

For isntance:

   1:  IList<Person> people = new List<Person>();

   2:  people.Add(new Person 

   3:      {

   4:          FirstName = "Jim", 

   5:          LastName="Schubert", 

   6:          Age=29, 

   7:          Phone="123-333-4444"

   8:      });

   9:  people.Add(new Person 

  10:      {

  11:          FirstName = "Joe", 

  12:          LastName="Schubert", 

  13:          Age=25, 

  14:          Phone="800-999-1111"

  15:      });

  16:      

  17:  Dictionary<int,string> names = people.ToDictionary(k => k.Age, v => v.FirstName);

There may not be many uses for this type of syntax, but simple transformations like this make Linq fun.