是否页面重载曾经引起帖子？ [英] Does page reload ever cause post?

问题描述

快速的问题，我已经尝试弄清这一点我自己，而是想弄清楚为什么或如何一个页面重新加载，做/没有做它应该做的时候使用Session变量可能会造成混淆。

Quick question, I have tried figuring this out myself, but the use of Session Variables can be confusing when trying to figure out why or how a page is reloading and doing/not doing what it is supposed to do.

是否重新加载页面（使用JavaScript，F5，Ctrl + F5，浏览器的刷新按钮等）以往，在任何（非脚本）的情况引起的形式重新发布？

Does a page reload (with JavaScript, f5, ctrl+f5, browser reload button, etc) ever, under any (non-scripted) circumstance cause a form repost?

（这涉及到使用C＃code类的例子code以下内IfPost分支）：

(This pertains to using IfPost branches within C# code like the example code below):

if(IsPost)
{
    //stuff that only executes if the previous request was a post.
}

我只是那种需要知道在这里会发生什么，所以我可以正确诊断我的会话状态的问题。

I just kind of need to know what to expect here so I can properly diagnose my session state problems.

感谢您的帮助！

（同样，对不起，如果我是过于简单化了这个问题。我知道这'可能'会复杂得多，一个简单的答案可以提供）。

(Also, sorry if I am oversimplifying this question. I realize that it 'may' be more complicated than a simple answer can provide).

******UPDATE**********
另外，我看了这个问题的副本在这里，在计算器上，但我没有看到任何东西，因此，如果这是一个重复的问题，我很抱歉。

******UPDATE********** Also, I looked for copies of this question here, on StackOverflow, but I didn't see anything, so if this is a duplicate question, I apologize.

无论这里的答案都是很好的答案。我承认，也提供了一个解决我的问题的答案，虽然PRG是不是唯一的方式做到这一点，就好像它可能是最好的。它也似乎越来越多的方法来处理客户端的用户友好性，恕我直言，似乎将是一个伟大的习惯进入。

Both of the answers here are good answers. I accepted the answer that also offered a solution to my question, and while PRG is not the 'only' way to do it, it seems like it may be the best. It also seems a growing way to handle client-side user-friendliness, and imho, seems like it would be a great habit to get into.

谢谢显示我！

推荐答案

是的。如果页面使用POST数据加载，这将发生。以prevent这一点，你需要实现 POST /重定向/ GET 模式。

Yes. If the page was loaded using POST data this will occur. To prevent this you need to implement the POST/REDIRECT/GET pattern.

邮政/重定向/获取（PRG）是一个Web开发设计模式prevents一些重复的表单提交，从而为用户代理（用户）更直观的界面。 PRG支持在不创建重复的表单提交一个predictable方式书签和刷新按钮。

Post/Redirect/Get (PRG) is a web development design pattern that prevents some duplicate form submissions, creating a more intuitive interface for user agents (users). PRG supports bookmarks and the refresh button in a predictable way that does not create duplicate form submissions.

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