如何使用有时相同的条目对List <Person>进行排序？

Question

我有一个关于在C#中排序的问题.

让我们假设有List<Person> personList50个项目.
每个人Person都有string forename, surname.

现在我想对这份人员名单进行排序.
首先,列表应按照排序Forename.
因此我会用这个:
personList.Sort((p1, p2)=>string.Compare(p1.Forename, p2.Forname, true));

在此之后,我想Forname用他们的相同的方式对所有条目进行排序Surname.

我怎样才能做到这一点？

编辑:@Russ Cam:这是一个示例列表.

未排序:

David Johnson
William Black
David Smith
Matthew Edwards
Jayden Anderson
Andrew Connor
Adam Johnson
Daniel Armstrong
Steve Anderson
Daniel Black

排序方式:

Adam Johnson
Andrew Connor
Daniel Armstrong
Daniel Black
David Johnson
David Smith
Jayden Anderson
Matthew Edwards
Steve Anderson
William Black

Answer 1

您可以使用LINQ的OrderBy方法来执行此操作

var sortedPersonList = personList.OrderBy(p => p.Forename).ThenBy(p => p.Surname);

编辑:

这是一个完整的控制台应用程序,用于验证它是否按照您期望的顺序返回结果

static void Main()
{
    var personList = new List<Person>{
        new Person("David Johnson"),
        new Person("William Black"),
        new Person("David Smith"),
        new Person("Matthew Edwards"),
        new Person("Jayden Anderson"),
        new Person("Andrew Connor"),
        new Person("Adam Johnson"),
        new Person("Daniel Armstrong"),
        new Person("Steve Anderson"),
        new Person("Daniel Black")  
    };

    var sortedPersonList = personList.OrderBy(p => p.Forename).ThenBy(p => p.Surname);

    foreach (var person in sortedPersonList)
    {
        Console.WriteLine(person);
    }

    Console.Read();
}

public class Person
{
    public Person(string name)
    {
        var names = name.Split(' ');
        Forename = names[0];
        Surname = names[1];
    }

    public string Forename { get; set; }
    public string Surname { get; set; }

public override string ToString()
{
    return Forename + " " + Surname;
}
}

写出来的

Adam Johnson
Andrew Connor
Daniel Armstrong
Daniel Black
David Johnson
David Smith
Jayden Anderson
Matthew Edwards
Steve Anderson
William Black