MVC Ajax Helper或Jquery异步加载部分视图

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? 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>




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