Question

我有一个具有以下结构的列表：

public class Amendment{
    public string name
    public string groupnumber
    public string edition
    public string destination
}

数据如下

var amendmentOne = new Amendment{
    name = "Apple",
    groupnumber = "A12345",
    edition = "A55600E01"
    phonenumber = "2232132123"
}
var amendmentTwo = new Amendment{
    name = "Apple",
    groupnumber = "AG2222",
    edition = "A55600E02"
    phonenumber = "2232132123"
}
var amendmentThree = new Amendment{
    name = "Apple",
    groupnumber = "AG55555",
    edition = "A55600E03"
    phonenumber = "2232132123"
}

当我遍历列表时，是否有可能以某种方式从列表中获得版本号为A55600E03的列表项？版本号除最后几个字符外都相同，因为它们始终为E [number]

Answer 1

应该和

一样容易

var result = List.Orderby(x => edition).Last();

示例

var list = new List<Amendment>{amendmentThree, amendmentOne, amendmentTwo};
var result = list.OrderBy(x => x.edition).Last();
Console.WriteLine(result.edition);

输出

A55600E03

Full Demo Here

C＃从对象列表中的字段获取最大数字

1 个答案: