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  • c# OrderBy 实现List升序降序

    本文转载自:http://blog.csdn.net/chadcao/article/details/8730132

    1)前台代码

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication8.Default" %>
    
    
    <!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></title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
            <asp:GridView ID="GridView1" runat="server">
            </asp:GridView>
        </div>
        </form>
    </body>
    </html>

    2)后台代码

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    
    
    namespace WebApplication8
    {
        public partial class Default : System.Web.UI.Page
        {
            protected void Page_Load(object sender, EventArgs e)
            {
                if (!IsPostBack)
                {
                    BindStudents();
                }
            }
            private void BindStudents()
            {
                List<Student> items = GetStudents().OrderBy(u => u.Name).ToList();//order by name asc
                //List<Student> items = GetStudents().OrderByDescending(u => u.Name).ToList();//order by name desc
                GridView1.DataSource = items;
                GridView1.DataBind();
            }
            private List<Student> GetStudents()
            {
                List<Student> items = new List<Student>();
                items.Add(new Student
                {
                    ID = 2,
                    Name = "abd"
                });
                items.Add(new Student
                {
                    ID = 1,
                    Name = "abc"
                });
                items.Add(new Student
                {
                    ID = 3,
                    Name = "bcd"
                });
                items.Add(new Student
                {
                    ID = 4,
                    Name = "acd"
                });
                return items;
            }
        }
        public class Student
        {
            public int ID { set; get; }
            public string Name { set; get; }
        }
    }
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  • 原文地址:https://www.cnblogs.com/wpcnblog/p/6306545.html
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