Could C# Linq do combinatorics?

Question

I have this data structure:

class Product
{
    public string Name { get; set; }
    public int Count { get; set; }
}

var list = new List(){ { Na         


        

Answer 1

You need the Count extension method

list.Count(p => p.Count <= 100);

EDIT:

If you want the sum of the items, Where and Sum extension methods could be utilized:

list.Where(p => p.Count <= 100).Sum(p => p.Count);