2017-7-28 MVC 项目一

项目一：在界面输出 helloworld

controllers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using mvc1.Models;

namespace mvc1.Controllers
{
    public class HomeController : Controller
    {
        //action
        public string Index()
        {
            return "Hello World!!";
        }

        public string test1()
        {
            return "<html><head></head><body><h1>这里是Test1，呵呵</h1></body></html>";
        }

        public string test2()
        {
            string s = "";
            List<Users> ulist = new UsersData().SelectAll();
            foreach (Users u in ulist)
            {
                s += u.NickName + " | ";
            }

            return s;

        }

    }
}

Models

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace mvc1.Models
{
    public class UsersData
    {
        /// <summary>
        /// 返回全部Users表数据
        /// </summary>
        /// <returns></returns>
        public List<Users> SelectAll()
        {
            using (DataClasses1DataContext con = new DataClasses1DataContext())
            {
                return con.Users.ToList();
            }
        }


    }
}

Views

项目二：

controllers层：

using mvc2.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace mvc2.Controllers
{
    public class HomeController : Controller
    {

        public ActionResult Index()
        {
            return View();
        }

        public ActionResult Insert()
        {
            return View();
        }

        public ActionResult Insert1(string username, string password, string nickname, string sex, string birthday, string nation)
        {
            Users u = new Users();
            u.UserName = username;
            u.PassWord = password;
            u.NickName = nickname;
            u.Sex = Convert.ToBoolean(sex);
            u.Birthday = Convert.ToDateTime(birthday);
            u.Nation = nation;

            bool ok = new UsersData().Insert(u);
            Session["InsertOK"] = ok;

            return RedirectToAction("Index", "Home");
        }

        public ActionResult Delete(string id)
        {
            bool ok = new UsersData().DeleteUser(id);

            return RedirectToAction("Index");
        }

        public ActionResult Update(string id)
        {
            Users u = new UsersData().SelectUser(id);

            ViewBag.hehe = u;

            return View();
        }

    }
}

Models层：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace mvc2.Models
{
    public class UsersData
    {
        DataClasses1DataContext con = new DataClasses1DataContext();
        public List<Users> SelectAll()
        {
            return con.Users.ToList();
        }

        public bool Insert(Users u)
        {
            bool ok = false;
            try
            {
                con.Users.InsertOnSubmit(u);
                con.SubmitChanges();
                ok = true;
            }
            catch { }

            return ok;
        }

        public bool DeleteUser(string ids)
        {
            bool ok = false;

            Users u = con.Users.Where(r => r.Ids.ToString() == ids).FirstOrDefault();
            if (u != null)
            {
                con.Users.DeleteOnSubmit(u);
                con.SubmitChanges();
                ok = true;
            }

            return ok;
        }

        public Users SelectUser(string ids)
        {
            return con.Users.Where(r => r.Ids.ToString() == ids).FirstOrDefault();
        }



    }
}

views层：

index：

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>

<%@ Import Namespace="mvc2.Models" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <div>
        <% if (Convert.ToBoolean(Session["InsertOK"]) == true)
           {%>

        <script type="text/javascript">
            alert('添加成功！');

        </script>
        <%
               Session["InsertOK"] = null;
           } %>

        <table style=" 100%; text-align: center; background-color: navy;">
            <tr style="color: white;">
                <td>用户名</td>
                <td>密码</td>
                <td>昵称</td>
                <td>性别</td>
                <td>生日</td>
                <td>民族</td>
                <td>操作</td>
            </tr>
            <%
                List<Users> ulist = new UsersData().SelectAll();

                foreach (Users u in ulist)
                {
            %>
            <tr style="background-color: white;">
                <td><%=u.UserName %></td>
                <td><%=u.PassWord %></td>
                <td><%=u.NickName %>同学</td>
                <td><%=u.Sex.Value?"男":"女" %></td>
                <td><%=u.Birthday.Value.ToString("yyyy年MM月dd日") %></td>
                <td><%=u.UserNation.NationName %></td>
                <td>
                    <a href="Home/Update/<%=u.Ids %>">修改</a> | 
                    <a href="Home/Delete/<%=u.Ids %>">删除</a>

                </td>
            </tr>
            <%
                }
            %>
        </table>
        <input type="button" value="添加" onclick="window.open('Home/Insert', '_blank');" />

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

insert：

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Insert</title>
</head>
<body>
    <div>
        <h1>添加用户</h1>

        <form action="Insert1" method="post">
            用户名：
        <input type="text" name="username" /><br />
            密码：
        <input type="text" name="password" /><br />
            昵称：
        <input type="text" name="nickname" /><br />
            性别：
        <input type="text" name="sex" /><br />
            生日：
        <input type="text" name="birthday" /><br />
            民族：
        <input type="text" name="nation" /><br />
            <input type="submit" value="保存" />
        </form>

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

update：

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>

<%@ Import Namespace="mvc2.Models" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Update</title>
</head>
<body>
    <h1>修改用户</h1>

    <%  Users u = ViewBag.hehe;  %>
    <form action="Update1" method="post">
        用户名：
        <input type="text" name="username" value="<%=u.UserName %>" /><br />
        密码：
        <input type="text" name="password" value="<%=u.PassWord %>" /><br />
        昵称：
        <input type="text" name="nickname" value="<%=u.NickName %>" /><br />
        性别：
        <input type="text" name="sex" value="<%=u.Sex %>" /><br />
        生日：
        <input type="text" name="birthday" value="<%=u.Birthday %>" /><br />
        民族：
        <input type="text" name="nation" value="<%=u.Nation %>" /><br />
        <input type="submit" value="保存" />
    </form>

</body>
</html>