รายการงานแบบ generic

using System;
using System.Collections.Generic;
record TaskItem(string Title, bool Done);
class Program
{
    static void Main()
    {
        var tasks = new List<TaskItem> { new("Learn LINQ", true), new("Learn events", false) };
        foreach (var task in tasks.FindAll(task => !task.Done)) Console.WriteLine(task.Title);
    }
}