合并多个List类型并通过LINQ按指定属性排序

2023-07-25 20:35:52

后台CS代码：

namespace WebFormTest.TestCollect

{

    public partial class ListTest : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            List<Person> list1 = new List<Person>();

            list1.Add(new Person() { Age = , Name = "张三", Time = Convert.ToDateTime("2013/12/20 13:20") });

            list1.Add(new Person() { Age = , Name = "李四", Time = Convert.ToDateTime("2013/12/20 14:20") });

            list1.Add(new Person() { Age = , Name = "王五", Time = Convert.ToDateTime("2013/12/20 13:40") });

            List<Person> list2 = new List<Person>();

            list2.Add(new Person() { Age = , Name = "张三2", Time = Convert.ToDateTime("2013/12/20 13:20") });

            list2.Add(new Person() { Age = , Name = "李四2", Time = Convert.ToDateTime("2013/12/20 14:20") });

            list2.Add(new Person() { Age = , Name = "王五2", Time = Convert.ToDateTime("2013/12/20 13:40") });

            list1 = list1.Concat(list2).ToList(); //合并多个list<T>

            list1 = list1.OrderByDescending(i => i.Time).ToList(); //降序排列

            //list.OrderBy(i => i.Time);升序排列

            Repeater1.DataSource = list1;

            Repeater1.DataBind();

        }

    }

    public class Person

    {

        private int age;

        public int Age

        {

            get { return age; }

            set { age = value; }

        }

        private string name;

        public string Name

        {

            get { return name; }

            set { name = value; }

        }

        private DateTime time;

        public DateTime Time

        {

            get { return time; }

            set { time = value; }

        }

    }

}

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ListTest.aspx.cs" Inherits="WebFormTest.TestCollect.ListTest" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>无标题页</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <table border="1" cellspacing="0" cellpadding="0" width="100%">

            <asp:Repeater ID="Repeater1" runat="server">

                <ItemTemplate>

                    <tr>

                        <td>

                            <%#Eval("Age") %>

                        </td>

                        <td>

                        <%#Eval("Name") %>

                        </td>

                        <td>

                        <%#Eval("Time") %>

                        </td>

                    </tr>

                </ItemTemplate>

            </asp:Repeater>

        </table>

    </div>

    </form>

</body>

</html>

效果展示：

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