How to make multiple sorts in one class?

Question

.NET

Actually, subject. How to implement sorting in a class by several fields to choose from. For example, sorting by name, by age, etc.

Answer 1

var orderedUsers = users.OrderBy(o => o.Name).ThenBy(o => o.Age);

Answer 2

public static int CompareToByNameAge(Pers p1, Pers p2)
        {
            int v = p1.Name.CompareTo(p2.Name);

            if (v == 0)
            {
                int t = p1.Age.CompareTo(p2.Age);
                return t;
            }
            return v;
        }

list.Sort(Pers.CompareToByNameAge);