MVC之Ajax.BeginForm使用详解之更新列表

 

1.首先,请在配置文件设置如下:(该项默认都存在且为true)

<add key="UnobtrusiveJavaScriptEnabled" value="true" />

2.在你的_layout.cshtml中引入JS文件:

<script src="~/Scripts/jquery-1.8.2.min.js"></script>

<script src="~/Scripts/jquery.validate.min.js"></script>

<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>

<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>

3.获取简单的某个值,比如ID,NAME等int,string类型:

数据实体User.cs:

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

 

namespace MvcApplication1.Models

{

    public class User

    {

        public int ID { get; set; }

        public string Name { get; set; }

    }

}

 

 

控制器UserController.cs:(部分代码)

 

      /// <summary>

        /// 定义的用户仓库

        /// </summary>

        private List<User> _userRepository = new List<User> {

        new User{ID=1,Name="ab"},

        new User{ID=2,Name="bc"},

        new User{ID=3,Name="cd"},

        new User{ID=4,Name="ace"}

        };

        #region GetUserID For (获取简单的某个值)

        public ActionResult UserID()

        {

            return View();

        }

        [HttpPost]

        public int UserID(string name)

        {

            User user = _userRepository.FirstOrDefault(x => string.Equals(x.Name, name, StringComparison.CurrentCultureIgnoreCase));

            if (user == null)

            {

                return -1;

            }

            return user.ID;

        }

        #endregion

 

视图UserID.cshtml:

 

@using MvcApplication1.Models;

@model User

@{

    ViewBag.Title = "查询用户ID";

}

@using (Ajax.BeginForm("UserID", "User", new AjaxOptions { HttpMethod = "Post", UpdateTargetId = "div_uid", InsertionMode = InsertionMode.Replace }))

{

    @Html.TextBox("name")

    <button type="submit" name="CX" style="width:80px; height:30px;">查询UserID</button>

}

<div id="div_uid"></div>

<!--如果是异步,则本文本框输入的值不会被刷新掉-->

<input type="text" autocomplete="off" />

 

如果你前面该引入的文件都引了,那么在点击查询时,

div_uid 中就会显示查询到的ID

结果如下:

 

 

4.获取用户列表,用于异步刷新列表:

注意:如果你有一个列表需要异步查询并更新查询结果,那就需要使用分布视图!也就是说你还需要一个View才可以,不可以将结果直接返回到本页!

控制器UserController.cs:(部分代码)

 

     #region GetUserList  (获取用户列表,用于异步刷新列表)

        // GET: /User/

        public ActionResult UserList()

        {

            var result = _userRepository;

            return View(result);

        }

        [HttpPost]

        public ActionResult UserList(string name)

        {

            var result = _userRepository;

            if (!string.IsNullOrWhiteSpace(name))

            {

                result = _userRepository.Where(u => u.Name.Contains(name)).ToList();

            }

            return PartialView("_pview", result);

        }

        #endregion

 

主视图UserList.cshtml:

 

@using MvcApplication1.Models;

@model List<User>

@{

    ViewBag.Title = "Index";

}

@using (Ajax.BeginForm("UserList", "User", new AjaxOptions { HttpMethod = "Post", UpdateTargetId = "tb", InsertionMode = InsertionMode.Replace }))

{

    @Html.TextBox("name")

     <button type="submit"  name="CX" style="width:80px; height:30px;">查询UserList</button>

}

<table>

    <thead>

        <tr>

            <td>用户ID</td>

            <td>用户名称</td>

        </tr>

    </thead>

    <tbody id="tb">

    @Html.Partial("_pview", Model)

    </tbody>

</table>

<!--如果是异步,则本文本框输入的值不会被刷新掉-->

<input type="text" autocomplete="off" />

 

分布视图_pview.cshtml:

 

@using MvcApplication1.Models;

@model List<User>

@{

    Layout = null;

    ViewBag.Title = "_pview";

}

@foreach (User u in Model)

{

    <tr>

        <td>@u.ID</td>

        <td>@u.Name</td>

    </tr>

}

 

结果如下:

 

点击查询后:

 

5.好了,基本上主流的2个用法都有,希望能对大家有帮助!

 

posted @ 2016-05-26 09:26  每天进步多一点  阅读(230)  评论(0编辑  收藏  举报