如何将JQuery变量传递给Razor？ [英] How to pass JQuery variables to Razor?

问题描述

我有JQuery代码：

I have the JQuery code:

$(document).ready(function() {
    $('.LikeArea').click(function() {
        var num = parseInt(this.html());
        num++;
        elem.html(num);     
    });
});

现在我想将jQuery变量 num 传递给Razor所以我可以使用新值更新数据库。

Now I want to pass the jQuery variable num to Razor so I can update the database with the new value.

推荐答案

Razor是一个视图引擎。当你说你想把一个jQuery变量传递给Razor时，不确定你是什么意思，因为Razor在任何javascript之前在服务器上运行。您可以使用AJAX向服务器端模板发送请求：

Razor is a view engine. Not really sure what you mean when you say that you want to pass a jQuery variable to Razor because Razor runs on the server before any javascript. You could use AJAX though to send a request to a server side template:

$(document).ready(function() {
    $('.LikeArea').click(function () {
        var num = parseInt(this.html());
        num++;
        elem.html(num);     
        $.ajax({
            url: '/foo.cshtml',
            type: 'POST',
            data: { num: num },
            success: function(result) {
                // TODO: do something with the result returned by the 
                // foo.cshtml template
            }
        });
    });
});

会向 /foo.cshtml发送一个AJAX请求模板，你可以在其中获取这样的变量：

which would send an AJAX request to the /foo.cshtml template in which you can fetch the variable like this:

@{
    var num = Request["num"];
}
...

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