C#如何对List中的Object进行排序

首先定义一个List类，这个类里面包含了Name和Total两个属性变量，下面就是针对这两个变量进行排序。

public class Player
{
    public string Name { get; set; }
    public int Total { get; set; }

    public Player(string name, int total)
    {
        Name = name;
        Total = total;
    }
}

然后我们创建一个List，这个List是Player对象的一个List集，创建好List后，需要为List添加一些节点，下面添加了6条数据。

List<Player> lst = new List<player>();
lst.Add(new Player("John", 100));
lst.Add(new Player("Smith", 120));
lst.Add(new Player("Cait", 97));
lst.Add(new Player("Irene", 100));
lst.Add(new Player("Ben", 100));
lst.Add(new Player("Deniel", 88));

我们通过List.Sort() 方法来进行排序
1：通过Total变量来进行升序排序

lst.Sort(delegate(Player x, Player y)
{
    return x.Total.CompareTo(y.Total);
});

2：通过Total进行降序排序

lst.Sort(delegate(Player x, Player y)
{
    return y.Total.CompareTo(x.Total);
});

3：通过多个元素进行排序

lst.Sort(delegate(Player x, Player y)
{
    // Sort by total in descending order
    int a = y.Total.CompareTo(x.Total);

    // Both player has the same total.
    // Sort by name in ascending order
    if (a == 0)
        a = x.Name.CompareTo(y.Name);

    return a;
});

4：通过Linq进行排序

var result1 = lst.OrderBy(a => a.Total);

var result3 = lst.OrderBy(a => a.Total).ThenBy(a => a.Name);

var result2 = lst.OrderByDescending(a => a.Total).ThenByDescending(a => a.Name);