Linq SUM on objects?

Question

I\'ve an object that represent a business data.

Basically, it\'s an object agregating some totals:

public class MyClass{
   public double MyDataOne {         


        

Answer 1

Write your own extension method:

public static MyClass Sum(this IEnumerable source)
{
    var result = new MyClass(); // all data will be zeros

    foreach(var item in source)
       result = result + item;

    return result;
}

Usage:

var sum = myClasses.Sum();