我有一个类:
public class MyObject
{
public string Name;
public int Age;
}
我有一个Myobject对象的列表:
Name Age
ABC 12
BBC 14
ABC 11
如何根据条件对列表进行排序:首先按照姓名排序,其次按照年龄排序。使用以下列表进行排序后的结果:
Name Age
ABC 11
ABC 12
BBC 14
我有一个类:
public class MyObject
{
public string Name;
public int Age;
}
我有一个Myobject对象的列表:
Name Age
ABC 12
BBC 14
ABC 11
Name Age
ABC 11
ABC 12
BBC 14
class Program
{
static void Main(string[] args)
{
var list = new List<MyObject>(new[]
{
new MyObject { Name = "ABC", Age = 12 },
new MyObject { Name = "BBC", Age = 14 },
new MyObject { Name = "ABC", Age = 11 },
});
var sortedList = from element in list
orderby element.Name
orderby element.Age
select element;
foreach (var item in sortedList)
{
Console.WriteLine("{0} {1}", item.Name, item.Age);
}
}
}
System.Linq
,您可以轻松实现它:list = list.OrderBy(e=>e.Name).ThenBy(e=>e.Age);
还可以查看这个答案:使用 Lambda/Linq 对象对列表进行排序。
使用LINQ,您可以执行以下操作:
class Program
{
static void Main(string[] args)
{
List<MyObject> list = new List<MyObject>();
list.Add(new MyObject() { Age = 12, Name = "ABC" });
list.Add(new MyObject() { Age = 11, Name = "ABC" });
list.Add(new MyObject() { Age = 14, Name = "BBC" });
var sorted = list.OrderBy(mo => mo.Name).ThenBy(mo => mo.Age);
foreach (var myObject in sorted)
{
Console.WriteLine(string.Format("{0} - {1}",
myObject.Name, myObject.Age));
}
}
}
你可以传递一个新对象给 Order By,以便它按照该对象排序
class Program
{
static void Main(string[] args)
{
var list = new List<MyObject>(new[]
{
new MyObject { Name = "ABC", Age = 12 },
new MyObject { Name = "BBC", Age = 14 },
new MyObject { Name = "ABC", Age = 11 },
});
var sortedList = list.OrderBy( x => new { x.Name , x.Age });
foreach (var item in sortedList)
{
Console.WriteLine("{0} {1}", item.Name, item.Age);
}
}
}