Question

in C# using linq i have a query like:

var result = from p in cart select new { p.Product.Title, p.Product.Price };

now i want to add some another items to result. For example adding:

int weight;
string message;

so that i can have something like:

foreach( var r in result)
{
   dosomething(r.weight;)
   dosomething(r.message);
   dosomething(r.title);
   dosomething(r.price);
  }

is it possible? how should i do it?

Answer 1

You can’t do that. Anonymous types are normal types and they are fixed at compile time. You can’t change them later.

EDIT:
You can create a container class for your result set and then select based on that:
class MyResult

class MyResult
{
    public string Title { get; set; }
    public double Price { get; set; }
    public double Weight { get; set; }
    public string Message { get; set; }
}

And then you can use:

    var query = from t in cart
                select new MyResult
                {
                    Title = t.ProductTitle,
                    Price = t.Product.Price
                };

Later you could do:

foreach( var r in result)
{
   dosomething(r.Wight;)
   dosomething(r.Message);
   dosomething(r.Title);
   dosomething(r.Price);
  }