对其中一个对象的属性排序对象列表

Question

我有一个对象列表List<MyObject>，我希望根据MyObject的一个属性对此列表进行排序。所以，例如

MyObject obj1, obj2, obj3 = new MyObject();
obj1.Value = 0.2;
obj2.Value = 2.2;
obj3.Value = 1.3;

.. List＆lt;＆gt;的顺序会是

List[0] = obj2;
List[1] = obj3;
List[2] = obj1;

我可以使用.NET本机功能执行此操作，还是必须编写自己的搜索？

Answer 1

1选项OrderBy

yourList = yourList.OrderBy(x=>x.PropertyName).ToList();

降

yourList = yourList.OrderByDescending(x=>x.PropertyName).ToList();

2选项List.Sort

yourList.Sort((x,y)=>x.PropertyName.CompareTo(y.PropertyName));

降

yourList.Sort((x,y)=>-x.PropertyName.CompareTo(y.PropertyName));

Answer 2

使用OrderBy：

var ordered = list.OrderBy(v => v.Value).ToList();

还有OrderByDescending。

Answer 3

您应首先为对象定义array并尝试此

 MyObject[] myObjList = new MyObject[]{obj1,Obj2,Obj3};   
    var myRes =myObjList.OrderByDescending(obj => obj.Value);