blocks|key|4964721|text|是的，但这始终是一个手工过程。MVC中没有专门为返回URL构建的内容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4964722|本质上，您的编辑/删除链接将需要包含一个GET+param，通常称为returnUrl，尽管名称并不重要，它将被设置为当前的页面URL。例如：|offset|length|style|CODE|4964723|@Html.ActionLink("Edit",+new+{+id+=+patient.Id,+returnUrl+=+Request.RawUrl+})|code-block|syntax|javascript|4964724|然后，您的编辑/删除GET操作应该接受这个参数，并设置一个ViewBag成员：|4964725|public+ActionResult+Edit(int+id,+string+returnUrl+=+null)
{
++++ViewBag.ReturnUrl+=+returnUrl;
++++return+View();
}|4964726|在编辑表单中，添加一个隐藏字段：|4964727|@Html.Hidden("returnUrl",+ViewBag.ReturnUrl)|4964728|在发布编辑操作中，再次接受param：|4964729|[HttpPost]
public+ActionResult+Edit(int+id,+Patient+model,+string+returnUrl+=+null)|4964730|但在这个行动中，你现在会做一些不同的事情。通常情况下，当您获得一个成功的帖子并保存了对象或其他什么时，您会执行如下操作：|4964731|return+RedirectToAction("Index");|4964732|但是，现在应该检查returnUrl是否有值，如果有，则重定向到该值：|4964733|if+(!string.IsNullOrEmpty(returnUrl))
{
++++return+Redirect(returnUrl);
}
return+RedirectToAction("Index");|4964734|MVC5+with+Identity示例项目有一个很好的助手方法，它使用：|4964735|private+ActionResult+RedirectToLocal(string+returnUrl)
{
++++if+(Url.IsLocalUrl(returnUrl))
++++{
++++++++return+Redirect(returnUrl);
++++}
++++else
++++{
++++++++return+RedirectToAction("Index",+"Home");
++++}
+}|4964736|这将进入您的控制器，基本上与我已经描述过的有两个显著不同之处的操作相同：|4964737|它使用Url.IsLocalUrl来检查返回url实际上是这个站点上的一个URL。这是一个智能检查，因为它最初是在URL的查询字符串中传递的，因此可以由用户操作。|ordered-list-item|4964738|它封装了逻辑，所以您不必记住应该如何处理。当您有一个成功的帖子，您只需返回RedirectToLocal(returnUrl)，如果有一个返回URL集，它将被使用。否则，将使用回退重定向。|4964739|4964740|4964741|entityMap^0|0|Y|9|0|0|T|7|0|0|0|0|0|0|0|0|9|9|0|0|0|0|0|3|E|0|11|Q|0|0|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1M|8|@$D|1N|E|1O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1P|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1Q|8|@$D|1R|E|1S|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|1T|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1U|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|1V|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|1W|8|@]|9|@]|A|$]]|$1|W|3|X|5|J|7|1X|8|@]|9|@]|A|$K|L]]|$1|Y|3|Z|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|10|3|11|5|J|7|1Z|8|@]|9|@]|A|$K|L]]|$1|12|3|13|5|6|7|20|8|@$D|21|E|22|F|G]]|9|@]|A|$]]|$1|14|3|15|5|J|7|23|8|@]|9|@]|A|$K|L]]|$1|16|3|17|5|6|7|24|8|@]|9|@]|A|$]]|$1|18|3|19|5|J|7|25|8|@]|9|@]|A|$K|L]]|$1|1A|3|1B|5|6|7|26|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|1E|7|27|8|@$D|28|E|29|F|G]]|9|@]|A|$]]|$1|1F|3|1G|5|1E|7|2A|8|@$D|2B|E|2C|F|G]]|9|@]|A|$]]|$1|1H|3|-4|5|6|7|2D|8|@]|9|@]|A|$]]|$1|1I|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|1J|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]]|1K|$]]

Yes, but this is always a manual process. There's nothing built into MVC specifically for return URLs.

Essentially, your links to edit/delete will need to include a GET param, usually called <code>returnUrl</code>, though the name doesn't matter, which will be set to the current page URL. For example:

<pre><code>@Html.ActionLink("Edit", new { id = patient.Id, returnUrl = Request.RawUrl })
</code></pre>

Then, your edit/delete GET action should accept this parameter, and set a <code>ViewBag</code> member:

<pre><code>public ActionResult Edit(int id, string returnUrl = null)
{
 ViewBag.ReturnUrl = returnUrl;
 return View();
}
</code></pre>

In your edit form, add a hidden field:

<pre><code>@Html.Hidden("returnUrl", ViewBag.ReturnUrl)
</code></pre>

In your POST edit action, again, accept the param:

<pre><code>[HttpPost]
public ActionResult Edit(int id, Patient model, string returnUrl = null)
</code></pre>

But inside this action is where you'll do something different now. Typically, when you've got a successful post and have saved the object or whatever, you then do something like:

<pre><code>return RedirectToAction("Index");
</code></pre>

However, instead, you should now check to see if <code>returnUrl</code> has a value, and if it does, redirect to that instead:

<pre><code>if (!string.IsNullOrEmpty(returnUrl))
{
 return Redirect(returnUrl);
}
return RedirectToAction("Index");
</code></pre>

The MVC5 with Identity sample project has a nice helper method that it uses:

<pre><code>private ActionResult RedirectToLocal(string returnUrl)
{
 if (Url.IsLocalUrl(returnUrl))
 {
 return Redirect(returnUrl);
 }
 else
 {
 return RedirectToAction("Index", "Home");
 }
 }
</code></pre>

That would just go into your controller and basically does the same as I've already described with two notable differences:

<ol>
<li>It uses <code>Url.IsLocalUrl</code> to check that the return url is actually a URL on this site. That's a smart check, as since this is initially passed in the query string of the URL, it's open to be manipulated by a user.</li>
<li>It encapsulates the logic, so you don't have to remember how to this should be handled. When you have a successful POST, you simply return <code>RedirectToLocal(returnUrl)</code>, and if there's a return URL set, it will be used. Otherwise, the fallback redirect will used.</li>
</ol>

blocks|key|4964762|text|在我的一个项目中，我就是这样做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4964763|public+ActionResult+Edit(int+id,+string+returnUrl)
{
++++//+find+the+model+(code+not+shown)
++++return+View(model);
}|code-block|syntax|javascript|4964764|在Edit视图中，您不需要做任何特殊的事情，在“后操作”中|offset|length|style|CODE|4964765|[HttpPost]
public+ActionResult+Edit(Model+model)
{
++++if+(ModelState.IsValid)
++++{
++++++++//+save+Model...++++

++++++++return+Redirect(Request.Params["returnUrl"]);
++++++++//+Request.Query+will+work+as+well+since+it+is+in+the+querystring
++++++++//+of+course+you+should+check+and+validate+it+as+well...
++++}
++++//+else+return+the+View+as+usual,+not+shown
}|4964766|要使用它，在从页面创建“编辑”链接时，只需指定额外的returnUrl参数：|4964767|@Html.ActionLink("Edit",+"Edit",
++++new+{+controller+=+"YourController",+
++++++++++returnUrl+=+Url.Action("Index",+"ThisController",)+
++++++++})|4964768|希望能帮上忙。|4964769|entityMap^0|0|0|1|4|0|0|Q|9|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|12|8|@$I|13|J|14|K|L]]|9|@]|A|$]]|$1|Q|3|R|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|V|$]]

This is how I did it in one of my projects:

<pre><code>public ActionResult Edit(int id, string returnUrl)
{
 // find the model (code not shown)
 return View(model);
}
</code></pre>

In the <code>Edit</code> view you don't need to do anything special, in the Post Action you have

<pre><code>[HttpPost]
public ActionResult Edit(Model model)
{
 if (ModelState.IsValid)
 {
 // save Model... 

 return Redirect(Request.Params["returnUrl"]);
 // Request.Query will work as well since it is in the querystring
 // of course you should check and validate it as well...
 }
 // else return the View as usual, not shown
}
</code></pre>

To use it, when creating the "Edit" link from your pages you simply need to specify the extra <code>returnUrl</code> parameter:

<pre><code>@Html.ActionLink("Edit", "Edit",
 new { controller = "YourController", 
 returnUrl = Url.Action("Index", "ThisController",) 
 })
</code></pre>

Hope it helps.

I have an MVC5 application which has several controllers, scaffolded with EF6 CRUD actions and associated views. One of these controller/view sets is used for managing a table of patient identifiers, and on completion of an edit or delete, the controller returns an action link to the identifiers index view, as expected.

However, the patient identifiers are also displayed on the various views of the patients controller, and from the Patient.Edit view I have Html.ActionLink calls to the identifier controller's edit or delete actions. When the latter are called from the Patient.Edit view, I would like them to return to that on completion.

Is there any way I can accomplish this?

Can I pass an alternative return link to an MVC controller action?

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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问我是否可以将另一个返回链接传递给MVC控制器操作？
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问我是否可以将另一个返回链接传递给MVC控制器操作？EN