MVC Ajax Helper或Jquery异步加载部分视图

网络编程 2025/10/30 佚名

3 2 1

废话不多说了，直接给大家贴代码了。

Model:

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

通过jQuery异步加载部分视图

Home/Index.cshtml视图中：

@{
 ViewBag.Title = "Index";
 Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Index</h2>
<div>
 <a href="#" id="a">通过jQuery异步</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 = "通过jQuery异步方式到达这里~~";
   return PartialView("TeamY", result);
  }
  private List<Team> GetAllTeams()
  {
   return new List<Team>()
   {
    new Team(){Name = "巴西队", Preletter = "B"},
    new Team(){Name = "克罗地亚队", Preletter = "K"},
    new Team(){Name = "巴拉圭", Preletter = "B"},
    new Team(){Name = "韩国", Preletter = "K"}
   };
  }
 }
}

部分视图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)

通过MVC Ajax Helper异步加载部分视图

Home/Index.cshtml视图中需要引用jquery.unobtrusive-ajax.js文件，从控制器返回的强类型部分视图内容呈现到UpdateTargetId指定的div中。

@{
 ViewBag.Title = "Index";
 Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Index</h2>
<div>
 @Ajax.ActionLink("通过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 = "通过MVC Ajax Helper到达这里~~";
   return PartialView("TeamY", result);
  }
  private List<Team> GetAllTeams()
  {
   return new List<Team>()
   {
    new Team(){Name = "巴西队", Preletter = "B"},
    new Team(){Name = "克罗地亚队", Preletter = "K"},
    new Team(){Name = "巴拉圭", Preletter = "B"},
    new Team(){Name = "韩国", Preletter = "K"}
   };
  }
 }
}

部分视图和上一种方式一样。

页面刷新的方式加载部分视图方法包括：

Html.RenderPartial()
Html.RenderAction()

下面给大家介绍MVC中实现部分内容异步加载

action中定义一个得到结果集的方法

public ActionResult GetItemTree(string title, int itemid, int"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;
  }

在主页面使用下面jquery代码异步调用上面的action

 $(function () {
  var id = '<%=itemid %>';
  $.ajax({
   type: "POST",
   url: "/Student/GetItemTree",
   data: { title: '<%=Model.Name %>', itemid: id, page: 1 },
   beforeSend: function (data) { //取回数据前
    $("#itemTree").html('<span style="padding:5">数据加载中...</span>');
   },
   error: function (data) { //发生错误时
//    debugger;
   },
   success: function (data) { //成功返回时
    $("#itemTree").html(data);
   }
  });

最后在分部视图GetItemTree.ascx中写上你要返回的数据结构即可
注意一点就是，如果涉及到分页，要用AJAX分页方式

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

mvc异步加载视图,jquery_ajax异步请求

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