When to lazy load?

Question

I lazy load all my members. I have been doing this for a while and simply taken lazy load to be a good thing at face value.

Let\'s say we have

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Answer 1

List number = new List { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
        var result = number.Where(x => x % 2 == 0);
        number.Add(20);
        //foreach (int item in result)
        //{
        //    Console.WriteLine("loop1:" + item);
        //}

        foreach (int item in result)
        {
            if (item == 4)
                break;
            Console.WriteLine("loop2:" + item);
        }
        number.Add(40);
        foreach (int item in result)
        {

            Console.WriteLine("loop3:"+item);
        }
        Console.ReadLine();

uncomment first loop and see the difference. very using example to under stand deffred execution and lazy loading.