基本AJAX的例子在ASP.NET MVC？ [英] Basic AJAX example with ASP.NET MVC?

问题描述

我在做一个演示ASP.NET MVC应用程序用于教育目的的过程。

I'm in the process of making a demo ASP.NET MVC app for educational purposes.

我有一个图像/链接标志后作为进攻。我想从服务器通过AJAX请求来标记进攻和检查，以确保用户有这个能力。

I have an image/link that flags a post as offensive. I would like to request from the server via AJAX to flag offensive and check to make sure that the user has this ability.

如果用户的话，那么我想标记后作为进攻中的数据库，并返回该标志经历。如果用户最终不必标志商品的权利话，我想返回一个负面的信息给客户端，所以我可以弹出一个漂亮的jQuery的框，说明它没有通过。

If the user does, then I want to flag the post as offensive in the database and return that the flag went through. If the user ends up NOT having the right to flag items then I would like to return a negative message to the client so I can popup a nice jQuery box stating that it didn't go through.

我想要做的这一切，没有一个完整的回发/刷新。

I'm trying to do this all without a full postback/refresh.

没有人有简单的AJAX请求正在与MVC例子任何联系？

Does anyone have any links to examples of simple AJAX requests being made with MVC?

推荐答案

这其实是pretty的易于使用jQuery。比方说，你的链接是这样的：

It is actually pretty easy with jQuery. Let's say your link is something like this:

<a href="javascript:flagInappropriate(<%=Model.PostId%>);">Flag as inappropriate</a>

创建一个JavaScript，调在你的控制器动作，检查和标记：

Create a javascript to call the action in your controller to check and flag as necessary:

function flagInappropriate(postId) {
    var url = "<CONTROLLER>/<ACTION>/" + postId;
    $.post(url, function(data) {
        if (data) {
            // callback to show image/flag
        } else {
            // callback to show error/permission
        }
    });
}

在你的控制器，你的操作方法很可能是这样的：

In you action method in your controller will probably look like this:

[AcceptVerbs("POST")]
public bool FlagAsInappropriate(int id) {
    // check permission
    bool allow = CheckPermission();

    // if allow then flag post
    if (allow) {
        // flag post

        return true;
    } else {
        return false;
    }
}

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