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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="http://www.mamicode.com/true" />

2.在你的_layout.cshtml中引入JS文件:

<script src="http://www.mamicode.com/~/Scripts/jquery-1.8.2.min.js"></script><script src="http://www.mamicode.com/~/Scripts/jquery.validate.min.js"></script><script src="http://www.mamicode.com/~/Scripts/jquery.validate.unobtrusive.min.js"></script><script src="http://www.mamicode.com/~/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:

技术分享

 

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:

技术分享

点击查询后:

技术分享

5.好了,基本上主流的2个用法都有,希望能对大家有帮助!

MVC之Ajax.BeginForm使用详解之更新列表