Passing object of anonymous type as parameter to a method

Question

I need do something like this:

public class carros 
{
    public int id { get; set; }
    public string nome { get; set; }
}

public void listar_carros()
{
    List<carros> cars = new List<carros>();
    cars.Add(new carros{ id= 1, nome = "Fusca" });
    cars.Add(new carros{ id= 2, nome = "Gol" });
    cars.Add(new carros{ id= 3, nome = "Fiesta" });

    var queryResult = from q in cars 
                      where q.nome.ToLower().Contains("eco") 
                      orderby q.nome 
                      select new { q.nome, q.id };

    doSomething(queryResult)
}

I need to pass the queryResult variable to function doSomething(). I tried use a dynamic type, List<T> object, but nothing works

public void doSomething(???? queryResult)
{
    foreach (carros ca in queryResult)
    {
        Response.Write(ca.nome);
        Response.Write(" - ");
        Response.Write(ca.id);
    }
}

Answer 1

In general, it's almost always a bad idea to pass anonymous types between methods.

You should make a custom type to hold the nome and id values, then construct it instead of an anonymous type.

---

In your case, you already have a class that would work: carros. You can just implement your query to create it instead:

var queryResult = from q in cars 
  where q.nome.ToLower().Contains("eco") 
  orderby q.nome 
  select new carros {q.nome, q.id};

Your method would then be:

public void doSomething(IEnumerable<carros> queryResults)