关于重用PartialView以及View层次

关于重用PartialView以及View层次

分类： Nop Commerce 2012-02-24 23:12  8人阅读  评论(0)  收藏  举报

自带数据控件@html.Action/PartialView(model)/@html.Partial

在默认访问页面中有如下代码：利用ChildActionOnly以及PartialView显示类似自带数据用户控件的作用

 <div class="clear">

 div>

 @Html.Action("HomePageNews","News")

 <div class="clear">

 div>

 @Html.Action("HomePagePolls","Poll")



 -   - - - --

  [ChildActionOnly]

         public ActionResultHomePagePolls()

         {

             var polls =_pollService.GetPolls(_workContext.WorkingLanguage.Id, true,0, int.MaxValue);

 // IPagedList<Poll>GetPolls(int languageId, bool loadShownOnHomePageOnly,

              int pageIndex, int pageSize, boolshowHidden = false);

 //只显示在Homepage，默认showHidden=false//

             var model = polls.Select(x =>PreparePollModel(x)).ToList();

 ////内部的函数，处理Poll到PollModel的,把IpagedList<Poll>--IPagedList<PollModel>

         protected PollModelPreparePollModel(Poll poll)

 //

             returnPartialView(model);- -- -- --- ---HomepagePolls对应HomepagePools.cshtml

         }

 parialView的render如下：

 @model IList<PollModel>

 @using Nop.Web.Framework;

 @using Nop.Web.Models.Polls;

 @if (Model.Count > 0)

 {<div class="todays-poll-box">

     <div class="todays-poll-box-block">

         @foreach(var poll inModel)

         {

             @Html.Partial("_Poll", poll) //又继续使用了Control Template  _Poll

         }

     div>

     div>

 }

 

 

_Pool.cshtml的内容，从中可以看到@Html.Partial(“_Poll”,poll)这个方式不需要Controller Action的，适合最简的Control template展示。Html.Action("HomePageNews","News")是要经过Controller的。

@model PollModel

@using Nop.Web.Framework;

@using Nop.Web.Models.Polls;

    @Model.Name

    @if(Model.AlreadyVoted)

{ …

 

@Html.Raw(addToCartWarningsSb.ToString())è直接输出后台变量

 

 

 

@Html.Action("HomePageNews","News")->Actioni(HomepageNews)->View(Action对应的View)->Partialview(subdata)->partialview(withoutAction)-Partialview(without Action)。。。。

从逻辑假设来看，模版View可以无穷细化下去.