Adding all numbers in a given list

Question

I have just started C# but I can't figure out how you add all the values in a list.

For example, if you have:

List<int> values = new List<int> { 1, 2, 4, 8, 5, 10 };

How can I add every single value in this list, without manually putting it into a calculator?

`int result = 0; foreach(int item in values) result += item;` if you don't want any Linq at the moment — Dmitry Bychenko, Aug 13 '20 at 09:48
Does this answer your question? [How to sum up an array of integers in C#](https://stackoverflow.com/questions/2419343/how-to-sum-up-an-array-of-integers-in-c-sharp) — Draken, Aug 13 '20 at 09:49

Rudey · Answer 1 · 2022-02-24T10:07:49.140

6

using System.Linq;

// ...

var total = values.Sum();

Don't forget to include using System.Linq at the top of the file.

Or, if you don't want to use LINQ, write a loop.

var total = 0;

foreach (var value in values)
{
    total += value;
}

// total equals 30

edited Feb 24 '22 at 10:07

answered Aug 13 '20 at 09:46

Rudey

score 1 · Answer 2 · answered Aug 13 '20 at 09:50

1

Alternatively to linq, you must loop through the list and add it to a sum:

int sum = 0;
foreach(int nr in values)
{
  sum += nr;
}

answered Aug 13 '20 at 09:50

Carra

2 Answers2