ASP.NET MVC3 URL 和隐藏 Id
我有一堆由 ID 作为键控的实体。在一个屏幕中，我根据 ID 加载“主题”，如下所示： "/Results/Subject/53" 在同一屏幕上，我有一个组合框，用于维护所有主题的列表。用户可以将此组合中的选择更改为另一个主题，然后我使用 ajax 加载该主题的结果。当我执行此操作时，浏览器中的 URL 已过时，因为我现在可能正在查看 /Results/Subject/45 如果用户重新加载，我会重新加载原始文档，而不是新文档。
我要么想更新 URL（听起来很老套），要么想将导航基于除 ID 之外的其他内容作为 URL 的一部分。我该怎么做？如何加载特定项目的控制器而不将 ID 指定为 URL 的一部分。
I have a heap of entities that are keyed by ID. In one screen I load a "Subject" based on the ID like so: "/Results/Subject/53" On that same screen I have a combo box that maintains a list of all subjects. The user can change the selection in this combo to another subject and I load the results for that subject using ajax. When I do this the URL in the browser is stale as I might be now be looking at /Results/Subject/45 If a user reloads I reload the original document and not the new one.
I would either like to update the URL (which sounds hacky as) or I would like to base my navigation on something else besides the Id as part of the URL. How can I do this? How can I load controllers for specific items without specifying the Id as part of the URL.
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您还可以通过 HTTP GET 参数传递 ID：
/Results/Subject?id=45或 HTTP POST 参数。但是，我怀疑这能否回答您的问题。
我的一位同事遇到了类似的问题，他通过更改浏览器 URL 字符串（通过附加特定的#anchor）解决了这个问题。
You can also pass the id via the HTTP GET parameter:
/Results/Subject?id=45or HTTP POST parameter.However, I doubt that this will answer your question.
A colleague of mine has encountered the similar problem, and he solved it by altering the browser URL string (by attaching a specific #anchor to it).
最简单的方法是当下拉列表发生变化时放弃 ajax，只导航到新的 url (/Results/Subject/NewID)。
如果你想保留ajax，你可以把key放在url的末尾，并加上#，如“/Results/Subject#53”，然后通过Ajax加载它（#53不会传递到服务器） ）。这样，当用户更改下拉列表时，您可以导航到“/Results/Subject#NewID”，而无需重新加载页面。
Easiest way would be to ditch the ajax when that drop-down changes, and just navigate to a new url (/Results/Subject/NewID).
If you want to keep the ajax, you could just put the key at the end of the url with a # like "/Results/Subject#53", then load it via Ajax (the #53 will not be passed over to the server). That way, when the user changes the drop-down, you can navigate to "/Results/Subject#NewID" without it reloading the page.