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| 1 | using System; | |
| 2 | using System.Collections.Generic; | |
| 3 | using System.Linq; | |
| 4 | using System.Web; | |
| 5 | using System.Web.UI; | |
| 6 | using System.Web.UI.WebControls; | |
| 7 | ||
| 8 | namespace redditTest | |
| 9 | {
| |
| 10 | ||
| 11 | public partial class Students : System.Web.UI.Page | |
| 12 | {
| |
| 13 | ||
| 14 | ||
| 15 | public List<Student> testList = new List<Student>() | |
| 16 | {
| |
| 17 | new Student("Steve", 5),
| |
| 18 | new Student("Steve", 2),
| |
| 19 | new Student("Steve", 4),
| |
| 20 | new Student("Steve", 1),
| |
| 21 | new Student("Steve", 5),
| |
| 22 | ||
| 23 | }; | |
| 24 | protected void Page_Load(object sender, EventArgs e) | |
| 25 | {
| |
| 26 | ||
| 27 | } | |
| 28 | ||
| 29 | protected void Button1_Click(object sender, EventArgs e) | |
| 30 | {
| |
| 31 | GridView1.DataSource = testList; | |
| 32 | GridView1.DataBind(); | |
| 33 | } | |
| 34 | ||
| 35 | protected void Button2_Click(object sender, EventArgs e) | |
| 36 | {
| |
| 37 | //LINQ way | |
| 38 | var goodStudent = from c in testList | |
| 39 | where c.studentGrade <= 4 | |
| 40 | select c; | |
| 41 | goodStudent.ToList(); | |
| 42 | ||
| 43 | GridView1.DataSource = goodStudent; | |
| 44 | //GridView1.DataSource = goodList; | |
| 45 | GridView1.DataBind(); | |
| 46 | ||
| 47 | ||
| 48 | } | |
| 49 | ||
| 50 | protected void Button3_Click(object sender, EventArgs e) | |
| 51 | {
| |
| 52 | List<Student> badList = new List<Student>(); | |
| 53 | foreach(Student s in testList) | |
| 54 | {
| |
| 55 | if (s.studentGrade <= 4) | |
| 56 | {
| |
| 57 | badList.Add(s); | |
| 58 | } | |
| 59 | } | |
| 60 | GridView1.DataSource = badList; | |
| 61 | GridView1.DataBind(); | |
| 62 | } | |
| 63 | } | |
| 64 | public class Student | |
| 65 | {
| |
| 66 | public string studentName { get; set; }
| |
| 67 | public int studentGrade { get; set; }
| |
| 68 | ||
| 69 | public Student(string name, int grade) | |
| 70 | {
| |
| 71 | studentName = name; | |
| 72 | studentGrade = grade; | |
| 73 | } | |
| 74 | ||
| 75 | ||
| 76 | ||
| 77 | } | |
| 78 | - | } |
| 78 | + | } |
| 79 | ||
| 80 | //aspx | |
| 81 | <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Students.aspx.cs" Inherits="redditTest.Students" %> | |
| 82 | ||
| 83 | <!DOCTYPE html> | |
| 84 | ||
| 85 | <html xmlns="http://www.w3.org/1999/xhtml"> | |
| 86 | <head runat="server"> | |
| 87 | <title></title> | |
| 88 | </head> | |
| 89 | <body> | |
| 90 | <form id="form1" runat="server"> | |
| 91 | <div> | |
| 92 | <asp:Button ID="Button1" runat="server" Text="Show All Students" OnClick="Button1_Click" /> | |
| 93 | ||
| 94 | <asp:Button ID="Button2" runat="server" Text="Show Top Performers" OnClick="Button2_Click" /> | |
| 95 | ||
| 96 | <asp:Button ID="Button3" runat="server" Text="Show Dunces" OnClick="Button3_Click" /> | |
| 97 | ||
| 98 | <asp:GridView ID="GridView1" runat="server"> | |
| 99 | </asp:GridView> | |
| 100 | </div> | |
| 101 | ||
| 102 | </form> | |
| 103 | </body> | |
| 104 | </html> |
