asp.net 4.5入门基础（008）

原创

虾米大王 2021-09-07 09:35:02 ©著作权

文章标签 html c# xml 用户名百度 文章分类 Html/CSS 前端开发

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test6-3

webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_3.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        <table>            <tr>                <td><strong>友情链接：<br /></strong></td>            </tr>            <tr>                <td>                    <asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click">百度</asp:LinkButton>                </td>            </tr>            <tr>                <td>                    <asp:LinkButton ID="LinkButton2" runat="server" OnClick="LinkButton2_Click">网易</asp:LinkButton>                </td>            </tr>            <tr>                <td>                    <asp:LinkButton ID="LinkButton3" runat="server" OnClick="LinkButton3_Click">腾讯</asp:LinkButton>                </td>            </tr>        </table>    </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_3{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){
        }
        protected void LinkButton1_Click(object sender, EventArgs e){            Response.Redirect("http://www.baidu.com");        }
        protected void LinkButton2_Click(object sender, EventArgs e){            Response.Redirect("http://www.163.com");        }
        protected void LinkButton3_Click(object sender, EventArgs e){            Response.Redirect("http://www.qq.com");        }    }}

test6-4

webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_4.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        用户名：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />        密&nbsp;码：<asp:TextBox ID="TextBox2" runat="server" TextMode="Password"></asp:TextBox><br />        <asp:Button ID="Button1" runat="server" Text="登录" OnClick="Button1_Click" />    </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_4{    public partial class WebForm1 : System.Web.UI.Page    {        private static readonly string[] users = new string[] {"admin","user"};
        private int userType(string userid){            if (userid == users[0])            {                return 1;            }            if (userid == users[1])            {                return 2;            }
            return 0;
        }
        protected void Page_Load(object sender, EventArgs e){
        }
        protected void Button1_Click(object sender, EventArgs e){            string userid = TextBox1.Text.ToString();            string pwd = TextBox2.Text.ToString();            ViewState["UserType"] = userType(userid);
            switch(ViewState["UserType"].ToString())            {                case "1":                    Response.Redirect("Admin.aspx?userid=" + userid);                    break;                case "2":                    Response.Redirect("User.aspx?userid=" + userid);                    break;                default:                    Response.Write("<script>alert('不是合法用户');</script>");                    break;
            }        }    }}

User.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_4{    public partial class User : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            string user = Request.QueryString["userid"].ToString();            Response.Write( user +"，登录成功");        }    }}

Admin.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_4{    public partial class Admin : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            string admin = Request.QueryString["userid"].ToString();            Response.Write(admin + "，进入成功");        }    }}

test6-5
webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_5.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_5{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            System.IO.StreamReader reader = new System.IO.StreamReader(System.IO.File.Open(Server.MapPath("WebForm1.aspx"),System.IO.FileMode.Open));            string tmp;            while((tmp = reader.ReadLine()) != null)            {                Response.Write(Server.HtmlEncode(tmp) + "<br>");            }            reader.Close();        }    }}

test6-6
webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_6.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        用户名：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>        <asp:CheckBox ID="CheckBox1" runat="server" Text="记住我" /><br />        密码：<asp:TextBox ID="TextBox2" runat="server" TextMode="Password"></asp:TextBox>        <asp:Button ID="Button1" runat="server" Text="登录" OnClick="Button1_Click"/>    </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_6{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            if (Request.Cookies["ID"] != null && Request.Cookies["PWD"] != null)            {                string id = Request.Cookies["ID"].Value.ToString();                string pwd = Request.Cookies["PWD"].Value.ToString();                Response.Redirect("New.aspx?id=" + id + "&PWD=" + pwd);            }        }
        protected void Button1_Click(object sender, EventArgs e){            if (CheckBox1.Checked)            {                Response.Cookies["ID"].Expires = DateTime.Now;                Response.Cookies["PWD"].Expires = DateTime.Now;                Response.Cookies["ID"].Value = TextBox1.Text;                Response.Cookies["PWD"].Value = TextBox2.Text;
            }
            Response.Redirect("New.aspx?id=" + TextBox1.Text + "&PWD=" + TextBox2.Text);        }    }}

News.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_6{    public partial class New : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            if (Request.QueryString["ID"] != null && Request.QueryString["PWD"] != null)            {                Response.Write("" + Request.QueryString["ID"] + "欢迎登录");            }        }    }}

test6-7

webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_7.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        <asp:Button ID="Button1" runat="server" Text="清空购物车" OnClick="Button1_Click" />&nbsp;        <asp:Button ID="Button2" runat="server" Text="添加" OnClick="Button2_Click" /><br />        <asp:Label ID="Label1" runat="server" Text="" ForeColor="Blue"></asp:Label>    </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_7{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            Label1.Text = "商品数量：0";        }
        protected void Button1_Click(object sender, EventArgs e){            Session["ItemCount"] = 0;            Label1.Text = "商品数量：" + Session["ItemCount"];        }
        protected void Button2_Click(object sender, EventArgs e){            if (Session["ItemCount"] != null)            {                int i = int.Parse(Session["ItemCount"].ToString());                i++;                Session["ItemCount"] = i;            }            else            {                Session["ItemCount"] = 1;            }
            Label1.Text = "商品数量：" + Session["ItemCount"];        }    }}

test6-8
webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="test6_8.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title></head><body>    <form id="form1" runat="server">    <div>        你是本站的第        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>        位访客，欢迎你！    </div>    </form></body></html>

webform1.aspx.cs

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;
namespace test6_8{    public partial class WebForm1 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e){            int count = Convert.ToInt32(Application["Visitors"]);            Label1.Text = count.ToString();
        }    }}