blocks|key|6129219|text|使用web+api控制器而不是mvc控制器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|6129220|除非另行指定，否则Mvc控制器将返回呈现的视图。你不能在实体框架上返回对象，因为循环引用，所以你应该有dtos。|6129221|然而，web+api控制器将这些操作与out+dto一起使用。另外，你可以创建query+string+parameter，然后你会收到你的jsons|offset|length|6129222|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/q/32971977/492258^0|0|0|13|M|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Use web api controller instead of mvc controller. 

Mvc controller returns rendered views unless you specified otherwise.
You cannot return object on entity framework because cyclic references thus you should have dtos.

However web api controller will these operations with out dto. plus you can create <a href="https://stackoverflow.com/q/32971977/492258">query string parameter</a> then you will receive your jsons

blocks|key|1595017|text|实际上我要看你的需要了。事实上，你所有的想法都是正确的，可以根据上下文的需要来使用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1595018|例如，如果您需要直接执行CRUD操作，则可以只使用视图模型并绑定到表单。如果您需要更复杂的结构，您可以创建包含多个视图模型的复合视图模型，并且您仍然可以使用默认的model行为。此外，您还可以使用ViewBag/ViewData字典对象将数据传递给视图。|1595019|如果需要异步，可以使用AJAX+(Get/Post)调用|1595020|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I depends on your need actually. In fact, all your thoughts are correct and could be used accoding to the context needs. 

For example; if you need to do straighforward CRUD ops, you can use just a viewmodel and bind to the form. If you need more complex structures, you can create composite view models that contain more than one view model and you can still use the default Model behaviour. 
Moreover, you can use ViewBag/ViewData dictionary objects to pass data to views. 

If you need async needs, you can use AJAX (Get/Post) calls

blocks|key|1594701|text|我可能是个守旧的人，但我尽可能多地使用view+models。我通常做的是在控制器的操作方法中填充视图模型，然后将此视图模型传递给视图：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1594702|public+async+Task<ActionResult>+Details(int+brandId)
{
+++++BrandViewModel+model+=+await+brandTask.DetailsAsync(brandId);
+++++if+(model+==+null)
+++++{
++++++++++throw+new+HttpException(404,+"404");
+++++}

+++++return+View(model);
}|code-block|syntax|javascript|1594703|有时候，我需要首先加载一个页面，然后通过返回JSON格式的数据来用数据填充某些控件。不久前，我在一个项目中工作，在表单加载后，我需要用JSON数据填充datatable：|1594704|public+ActionResult+GetApplicationNotes(DataTableParameterViewModel+parameterViewModel,+int+id)
{
+++++IEnumerable<Note>+notes+=+noteService.FindAllByApplicationId(id);

+++++var+result+=
++++++++++from+note
++++++++++in+notes
++++++++++orderby+note.Id+descending
++++++++++select+new[]
++++++++++{
+++++++++++++++note.Body,
+++++++++++++++note.CreatedDate.FormatDate()
++++++++++};

+++++return+Json(new
+++++{
++++++++++sEcho+=+parameterViewModel.sEcho,
++++++++++iTotalRecords+=+notes.Count(),
++++++++++iTotalDisplayRecords+=+notes.Count(),
++++++++++aaData+=+result
+++++},
+++++JsonRequestBehavior.AllowGet);
}|1594705|这一切都归结为你需要在你的场景中实现什么。如果我不需要做任何花哨的事情，那么我总是会先使用视图模型。如果我需要更新网页的某些部分，那么我会做一个AJAX调用并返回JSON格式的数据。|1594706|entityMap|0|LINK|mutability|MUTABLE|url|https://datatables.net/^0|J|B|0|0|M|4|23|9|0|0|0|20|4|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|M|3|N|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

I might be old school but I try to use <code>view models</code> as much as possible. What I normally do is to populate the view model in my controller's action method and then pass on this view model to the view:

<pre><code>public async Task&lt;ActionResult&gt; Details(int brandId)
{
 BrandViewModel model = await brandTask.DetailsAsync(brandId);
 if (model == null)
 {
 throw new HttpException(404, "404");
 }

 return View(model);
}
</code></pre>

There are times that I will need to first load a page and then populate certain controls with data by returning data in <code>JSON</code> format. A while back I worked on a project where I needed to fill a <a href="https://datatables.net/" rel="nofollow">datatable</a> with JSON data after the form was loaded:

<pre><code>public ActionResult GetApplicationNotes(DataTableParameterViewModel parameterViewModel, int id)
{
 IEnumerable&lt;Note&gt; notes = noteService.FindAllByApplicationId(id);

 var result =
 from note
 in notes
 orderby note.Id descending
 select new[]
 {
 note.Body,
 note.CreatedDate.FormatDate()
 };

 return Json(new
 {
 sEcho = parameterViewModel.sEcho,
 iTotalRecords = notes.Count(),
 iTotalDisplayRecords = notes.Count(),
 aaData = result
 },
 JsonRequestBehavior.AllowGet);
}
</code></pre>

It all goes down as to what you need to achieve in your scenario. If I don't need to do anything fancy then I will always use view models first. If I need to update certain parts of a web page then I will do an <code>AJAX</code> call and return data in JSON format.

I have recently finished an education within ASP.NET MVC and I need some guidelines and good advices.

If I need data from several models, I have learned to build <code>View Models</code>, but recently I heard that instead of <code>View Models</code> it's better to use <code>JSON</code> objects and return the object as a model to the <code>View</code> or just get all the data from the <code>JSON</code> object from the <code>Controller</code> via <code>AJAX</code> calls to the <code>View</code> and then show the data with <code>jQuery</code> within the <code>HTML</code>.

Is this the best way today instead of common <code>View Models</code> and refreshing page with POST/GET requests in the URL?

In the <code>Controller</code>, do I create a <code>JSON</code> object and fill it with data like a list for each <code>Model</code> or how does it work?

JSON instead of View Models

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我最近完成了ASP.NET MVC的培训，我需要一些指导和好的建议。如果我需要来自多个模型的数据，我已经学会了构建View Models，但最近我听说，与View Models相比，使用JSON对象并将对象作为模型返回给View更好，或者只是通过对View的AJAX调用从Controller获取JSON对象的所有数据，...

问JSON而不是视图模型
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