Question

In C# 3.0 you can create anonymous class with the following syntax

var o = new { Id = 1, Name = 'Foo' }; 

Is there a way to add these anonymous class to a generic list?

Example:

var o = new { Id = 1, Name = 'Foo' }; var o1 = new { Id = 2, Name = 'Bar' };  List<var> list = new List<var>(); list.Add(o); list.Add(o1); 

Another Example:

List<var> list = new List<var>();  while (....) {     ....     list.Add(new {Id = x, Name = y});     .... } 

Answer 1

You could do:

var list = new[] { o, o1 }.ToList(); 

There are lots of ways of skinning this cat, but basically they’ll all use type inference somewhere – which means you’ve got to be calling a generic method (possibly as an extension method). Another example might be:

public static List<T> CreateList<T>(params T[] elements) {      return new List<T>(elements); }  var list = CreateList(o, o1); 

You get the idea 🙂