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MVC Ajax Helper或Jquery異步加載部分視圖

 更新時(shí)間:2015年11月29日 11:00:04   作者:回到印第安  
這篇文章主要介紹了MVC Ajax Helper或Jquery異步加載部分視圖的相關(guān)資料,需要的朋友可以參考下

廢話不多說了,直接給大家貼代碼了。

Model:

namespace MvcApplication1.Models
{
 public class Team
 {
  public string Preletter { get; set; }
  public string Name { get; set; }
 }
}

通過jQuery異步加載部分視圖

Home/Index.cshtml視圖中:

@{
 ViewBag.Title = "Index";
 Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Index</h2>
<div>
 <a href="#" id="a">通過jQuery異步</a> <br/>
</div>
<div id="result">
</div>
@section scripts
{
 <script type="text/javascript">
  $(function() {
   $('#a').click(function() {
    $.ajax({
     url: '@Url.Action("Index","Home")',
     data: { pre: 'B' },
     type: 'POST',
     success: function(data) {
      $('#result').empty().append(data);
     }
    });
    return false;
   });
  });
 </script>
}

HomeController控制器中:

using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using MvcApplication1.Models;
namespace MvcApplication1.Controllers
{
 public class HomeController : Controller
 {
  public ActionResult Index()
  {
   return View();
  }
  [HttpPost]
  public ActionResult Index(string pre)
  {
   var result = GetAllTeams().Where(t => t.Preletter == pre).ToList();
   ViewBag.msg = "通過jQuery異步方式到達(dá)這里~~";
   return PartialView("TeamY", result);
  }
  private List<Team> GetAllTeams()
  {
   return new List<Team>()
   {
    new Team(){Name = "巴西隊(duì)", Preletter = "B"},
    new Team(){Name = "克羅地亞隊(duì)", Preletter = "K"},
    new Team(){Name = "巴拉圭", Preletter = "B"},
    new Team(){Name = "韓國(guó)", Preletter = "K"}
   };
  }
 }
}

部分視圖TeamY.cshtml:

@model IEnumerable<MvcApplication1.Models.Team> 
@{
 var result = string.Empty;
 foreach (var item in Model)
 {
  result += item.Name + ",";
 }
}
@ViewBag.msg.ToString()
<br/>
@result.Substring(0,result.Length - 1)

通過MVC Ajax Helper異步加載部分視圖

Home/Index.cshtml視圖中需要引用jquery.unobtrusive-ajax.js文件,從控制器返回的強(qiáng)類型部分視圖內(nèi)容呈現(xiàn)到UpdateTargetId指定的div中。

@{
 ViewBag.Title = "Index";
 Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Index</h2>
<div>
 @Ajax.ActionLink("通過MVC Ajax Helper","Load","Home", new {pre = "K"}, new AjaxOptions(){UpdateTargetId = "result1"})
</div>
<div id="result1">
</div>

HomeController控制器中:

using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using MvcApplication1.Models;

namespace MvcApplication1.Controllers
{
 public class HomeController : Controller
 {
  public ActionResult Index()
  {
   return View();
  }
  public ActionResult Load(string pre)
  {
   var result = GetAllTeams().Where(t => t.Preletter == pre).ToList();
   ViewBag.msg = "通過MVC Ajax Helper到達(dá)這里~~";
   return PartialView("TeamY", result);
  }
  private List<Team> GetAllTeams()
  {
   return new List<Team>()
   {
    new Team(){Name = "巴西隊(duì)", Preletter = "B"},
    new Team(){Name = "克羅地亞隊(duì)", Preletter = "K"},
    new Team(){Name = "巴拉圭", Preletter = "B"},
    new Team(){Name = "韓國(guó)", Preletter = "K"}
   };
  }
 }
}

部分視圖和上一種方式一樣。

頁(yè)面刷新的方式加載部分視圖方法包括:

Html.RenderPartial()
Html.RenderAction()

下面給大家介紹MVC中實(shí)現(xiàn)部分內(nèi)容異步加載

action中定義一個(gè)得到結(jié)果集的方法

public ActionResult GetItemTree(string title, int itemid, int? page)
  {
   pp = new PagingParam(page ?? 1, VConfig.WebConstConfig.PageSize);
   Common.Page.PagedList<Entity.Res_Item_Resource_R> res_Item_Resource_R = iResourceService.GetRes_Item_Resource_RByItemId(itemid, pp);
   ViewData["res_Item_Resource_R"] = res_Item_Resource_R;
   res_Item_Resource_R.AddParameters = new System.Collections.Specialized.NameValueCollection();
   res_Item_Resource_R.AddParameters.Add("title", title);
   res_Item_Resource_R.AddParameters.Add("itemid", itemid.ToString());

   ViewResult vr = new ViewResult
   {
    ViewData = ViewData,
    MasterName = "",
   };
   return vr;
  }

    在主頁(yè)面使用下面jquery代碼異步調(diào)用上面的action

 $(function () {
  var id = '<%=itemid %>';
  $.ajax({
   type: "POST",
   url: "/Student/GetItemTree",
   data: { title: '<%=Model.Name %>', itemid: id, page: 1 },
   beforeSend: function (data) { //取回?cái)?shù)據(jù)前
    $("#itemTree").html('<span style="padding:5">數(shù)據(jù)加載中...</span>');
   },
   error: function (data) { //發(fā)生錯(cuò)誤時(shí)
//    debugger;
   },
   success: function (data) { //成功返回時(shí)
    $("#itemTree").html(data);
   }
  });

   最后在分部視圖GetItemTree.ascx中寫上你要返回的數(shù)據(jù)結(jié)構(gòu)即可
   注意一點(diǎn)就是,如果涉及到分頁(yè),要用AJAX分頁(yè)方式

<div style="float: left">
  <%=Html.AjaxPager(resItemResourceBefore, "itemTree", "GetItemTree", "Student")%>
 </div>

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