一个简单的ASP.NET Web Forms应用程序

Posted 2021-03-10 书香香鳳金閣紫陽

ASP.NET 支持三种不同的开发模式： Web Pages（Web 页面）、MVC（Model View Controller 模型-视图-控制器）、Web Forms（Web 窗体）

我给大家展示的是Web Forms（Web 窗体）

第一：我们需要了解下，什么是Web Forms。

          Web Forms 是三种创建 ASP.NET 网站和 Web 应用程序的编程模式中的一种。

          Web Forms 是最古老的 ASP.NET 编程模式，是整合了 html、服务器控件和服务器代码的事件驱动网页。

          Web Forms 是在服务器上编译和执行的，再由服务器生成 HTML 显示为网页。

          Web Forms 有数以百计的 Web 控件和 Web 组件用来创建带有数据访问的用户驱动网站。

          详情请查阅：http://www.runoob.com/aspnet/aspnet-intro.html

第二：Web Forms 的搭建

           废话就不多说了，还是来直接操作吧。

           步骤一：确定你的开发环境：vs2015  sql2008。

           步骤二：凡事开发都离不开数据库的搭建，搭建你的数据库，插入一条数据，查看是否有数据，这我就不废话了。

-- 用户表
drop table [User] 
Create Table [User] 
(
 "Theserialnumber" int  IDENTITY   (1,   1)   NOT   NULL ,  
 "UserID"          varchar(50)  NOT   NULL ,
 "UserName"        varchar(30),
 "UserSet"         char(2),
 "Userphone"       char(11),
 "UserworkID"      varchar(50),
 "UserlevelID"       varchar(20),   
 "UserTypeID"      varchar(50),
 "UserCreationtime" dateTime,
 "UserhobbyID"     varchar(50),
 )
 alter table [User] add constraint pk_name primary key ("Theserialnumber","UserID");
 --用户工作表
 drop table Work
 Create Table Work
 (
   "UserworkID" varchar(50) Primary Key  NOT   NULL,
   "UserworkType" varchar(50),
   "WorkDetailsID"  varchar(50)
 )
 --用户工作详情表
 drop table WorkDetails
 Create Table WorkDetails
 (
  "WorkDetailsID" varchar(50) Primary Key,
  "WorkDetailsSituation" varchar(50)
  
 )
 
 --权限表
 drop table [level]
 Create Table [level]
 (
  "UserlevelID" varchar(50)  Primary Key,
  "UserleverlType" varchar(50)  
 )
 
 --类型表
 drop table UserType
 Create Table UserType
 (
 "UserTypeID" varchar(50)  Primary Key,
 "UserType"   varchar(50)
 )
 
 --业余表
 drop table Userhobby
 Create Table Userhobby
 (
  "UserhobbyID" varchar(50) Primary Key,
  "Userhobby"   varchar(50)
 )
 
--增加数据
 insert into [User](UserID,UserName,UserSet,Userphone,UserworkID,
                     UserlevelID,UserTypeID,UserCreationtime,UserhobbyID)
                     values(\'2020020901494949\',\'张三\',\'男\',\'13817475159\',\'1\',
                     \'1\',\'1\',2020/2/9,\'1\')
               
insert into Work(UserworkID, UserworkType, WorkDetailsID)values(\'1\',\'IT\',\'2020020901494949\')


insert into WorkDetails(WorkDetailsID, WorkDetailsSituation)values(\'2020020901494949\',\'开发编码\')

insert into [level] (UserlevelID, UserleverlType)values(\'1\',\'管理员\')
insert into [level] (UserlevelID, UserleverlType)values(\'2\',\'普通用户\')

insert into UserType(UserTypeID, UserType)values(\'1\',\'开发人员\')

insert into Userhobby(UserhobbyID, Userhobby)values(\'1\',\'编码\')
insert into Userhobby(UserhobbyID, Userhobby)values(\'2\',\'吃\')
insert into Userhobby(UserhobbyID, Userhobby)values(\'3\',\'学习\')
insert into Userhobby(UserhobbyID, Userhobby)values(\'4\',\'工作\')

Select Theserialnumber, UserID, UserName, UserSet,
       Userphone, work.UserworkType,Details.WorkDetailsSituation,
       [level].UserleverlType,[type].UserType, UserCreationtime, hobby.Userhobby from [User] 
       inner join Work on Work.UserworkID=[User].UserworkID
       inner join [level] on [level].UserlevelID=[user].UserlevelID
       inner join UserType as [type] on [type].UserTypeID=[USER].UserTypeID
       inner join WorkDetails as Details on Details.WorkDetailsID=Work.WorkDetailsID
       inner join Userhobby as hobby on hobby.UserhobbyID=[user].UserhobbyID

 

           步骤三：打开你的Visual Studio，新建---项目---ASP.NET Web应用程序---空的WebForms应用程序。

           步骤四：建一个类库Model(模型)和一个数据访问层DAL

           步骤五：在Model建一个ADO.NET实体数据模型来自数据库的Code First

           步骤六：建立引用(索引)  

                          DAL索引Model和程序集框架System.Configuration系统配置文件

                          WebForms应用程序索引DAL和Model

                          配置好Web.config文件

            步骤七：在DAL数据访问层中搭建DBbase类，用来处理模型数据的增删改查

        //读取配置文件，连接数据库语句
        public static string strCon = System.Configuration.ConfigurationManager.ConnectionStrings["Family"].ConnectionString;

        //实例化连接对象 con  
        SqlConnection con = new SqlConnection(strCon);

        //检测连接是否打开  
        public void Connection()
        {
            if (this.con.State == ConnectionState.Closed)
            {
                this.con.Open();
            }
        }
        //根据提供的strSQL语句 访问数据库，返回List集合
        public List<User> GetDataSet(string strSQL)
        {
            Connection();
            try
            {
                SqlDataAdapter da = new SqlDataAdapter(strSQL, con);
                DataSet ds = new DataSet();
                da.Fill(ds);
                List<User> list = new List<User>();
                if (ds.Tables.Count > 0)
                {
                    for (int i = 0; i < ds.Tables.Count; i++)
                    {
                        foreach (DataRow dr in ds.Tables[i].Rows)
                        {
                            User obj = new User();
                            if (ds.Tables[i].Columns.Contains("UserID")) obj.UserID = Convert.ToString(dr["UserID"]);
                            if (ds.Tables[i].Columns.Contains("UserName")) obj.UserName = Convert.ToString(dr["UserName"]);
                            if (ds.Tables[i].Columns.Contains("UserSet")) obj.UserSet = Convert.ToString(dr["UserSet"]);
                            if (ds.Tables[i].Columns.Contains("Userphone")) obj.Userphone = Convert.ToString(dr["Userphone"]);
                            if (ds.Tables[i].Columns.Contains("UserworkType")) obj.UserworkType = Convert.ToString(dr["UserworkType"]);
                            if (ds.Tables[i].Columns.Contains("WorkDetailsSituation")) obj.WorkDetailsSituation = Convert.ToString(dr["WorkDetailsSituation"]);
                            if (ds.Tables[i].Columns.Contains("UserleverlType")) obj.UserleverlType = Convert.ToString(dr["UserleverlType"]);
                            if (ds.Tables[i].Columns.Contains("UserType")) obj.UserType = Convert.ToString(dr["UserType"]);
                            if (ds.Tables[i].Columns.Contains("UserCreationtime")) obj.UserCreationtime = Convert.ToDateTime(dr["UserCreationtime"]);
                            if (ds.Tables[i].Columns.Contains("Userhobby")) obj.Userhobby = Convert.ToString(dr["Userhobby"]);
                            list.Add(obj);
                        }
                    }
                }
                return list;
            }
            catch (Exception)
            {

                throw;
            }
        }

namespace DAL
{
    public class Family
    {
        //实例化一个DBbase对象
        static DBbase db = new DBbase();

        //查询用户数据 
        public static List<User> User()
        {
            //通过实体中的属性访问 拼接一个你需要的SQL语句
            StringBuilder strSQL = new StringBuilder();
            strSQL.Append("Select Theserialnumber, UserID, UserName, UserSet, Userphone, work.UserworkType,Details.WorkDetailsSituation,[level].UserleverlType,[type].UserType, UserCreationtime, hobby.Userhobby from [User]  ");
            strSQL.Append("inner join Work on Work.UserworkID=[User].UserworkID  ");
            strSQL.Append("inner join [level] on [level].UserlevelID=[user].UserlevelID  ");
            strSQL.Append("inner join UserType as [type] on [type].UserTypeID=[USER].UserTypeID  ");
            strSQL.Append("inner join WorkDetails as Details on Details.WorkDetailsID=Work.WorkDetailsID  ");
            strSQL.Append("inner join Userhobby as hobby on hobby.UserhobbyID=[user].UserhobbyID");
            return db.GetDataSet(strSQL.ToString());
        }
    }
}

 

            步骤八：创建一个Web窗体aspx文件 设为启动项，在窗体前端编写HTML你需要展示的东西

 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HomePage.aspx.cs" Inherits="WebForms.HomePage" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <style type="text/css">
        table {
            margin: auto;
            border-style: dotted;
            border-color: #adabab;
            text-align: center;
            width: 80%;
        }
    </style>
    <title>WebForms</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <p>直接绑定</p>
            <ul>
                <li><%=UserID %></li>
                <li><%=UserName %></li>
            </ul>

            <p>循环遍历对象</p>
            <table>
                <tr>
                    <td>用户编号</td>
                    <td>用户姓名</td>
                    <td>用户性别</td>
                    <td>用户电话</td>
                    <td>工作类型</td>
                    <td>工作详情</td>
                    <td>用户权限</td>
                    <td>用户类型</td>
                    <td>入户时间</td>
                    <td>用户性趣</td>
                </tr>
                <%for (int i = 0; i < User.Count; i++)
                    {
                        foreach (var item in User)
                        {%>
                <tr>
                    <td><%=item.UserID%></td>
                    <td><%=item.UserName%></td>
                    <td><%=item.UserSet%></td>
                    <td><%=item.Userphone%></td>
                    <td><%=item.UserworkType%></td>
                    <td><%=item.WorkDetailsSituation%></td>
                    <td><%=item.UserleverlType%></td>
                    <td><%=item.UserType%></td>
                    <td><%=item.UserCreationtime%></td>
                    <td><%=item.Userhobby%></td>
                </tr>
                <% }
                    } %>
            </table>

        </div>
    </form>
</body>
</html>

using Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebForms
{
    public partial class HomePage : System.Web.UI.Page
    {
        public List<User> User=new List<Model.User>();
        public string UserID = "";
        public string UserName = "";
        /// <summary>
        /// 首页加载
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Page_Load(object sender, EventArgs e)
        {
             User = DAL.Family.User();
             UserID = User[0].UserID;
             UserName = User[0].UserName;
        }
       
    }
}

           步骤九：展示页面效果

总体来说：万变不离其中。

  总结一下：其实挺简单的。