{} in linq result

Question

var query = from c in customers
                join o in orders on c.ID equals o.ID
                select new { c.ID, c.City, SalesBefore = c.Sales, NewOrder = o.Amount, SalesAfter = c.Sales + o.Amount };

    foreach (var item in query)
    {
        Console.WriteLine(item);
    }

I was running above code in console application. When it generates the result, it is displayed in the {}. Why is the result in the {}?

Example result

{ ID=1, City=New York.....}

There is nothing crucial. Just curious to know.

Answer 1

That's just the default .ToString implementation of anonymous types. Nothing more or less.

Answer 2

That code uses the Console.WriteLine(object) overload, which under the hood calls the .ToString() method on the object given. The .ToString() method, in turn, renders an anonymous type in that way.