Sum using from clause (linq)

Question

I've got a following command:

var sum = myList.Sum(p => p.Field);

Is it possible to write the same command using from clause? eg.

var sum = from myList ...

Answer 1

There is no expression for sum in this notation. Here is as close as you can get:

var sum = (from p in myList select p.Field).Sum();

Answer 2

Yep. See below.

var sum = (from p in myList
           select p.Field).Sum();

Answer 3

var sum = (from p in myList
           select p.Field).Sum();

• Enumerable.Sum Method