如何将 HashSet 类型传递给方法

Question

I have two different classes Student and Teacher in C#. Instances of these classes are stored in separated HashSets. Both classes are interited from class Human.

HashSet<Student> students
HashSet<Teacher> teachers

I would like to pass them into one method to sort them/print them, like

Sort(students);
Sort(teachers);
private void SortPeople<T>(HashSet<T> people)
{
  // ... sorting function
}

But that does not work, the collection people in sorting function does not recognize it (cannot see atributes of Students/Teachers). What would be the right solution? Thank you.

Answer 1

My sugestion is for you to use an interface for the generic ...

void SortPeople<T>(HashSet<T> people) 
    where T : IPeople
{
    
}




public class Student : IPeople
{
    public string Name { get; set; }
    public int Id { get; set; }
}

public class Teacher : IPeople
{
    public string Name { get; set; }
    public int Id { get; set; }
}

public interface IPeople
{
    string Name { get; set; }
    int Id { get; set; }
}