如何使用Javascript中的值调用ASP.Net方法

Question

我试图.aspx.cs调用testFun()从我的javascript代码调用的页面文件中的C#函数,我想传递2个值.我的javascript代码看起来有点像这样:

var questionsDone = 45;
var questionsCorrect = 23;
var exercisesDone = 65;
var exercisesCorrect = 12;
alert("<%= testFun() %>");

我想要传递值的方法如下所示:

public string testFun(double questionScore, double exerciseScore){
    return "done"; 
}

我想要做的是传递2个值,第一个是正值,(questionsCorrect/questionsDone)秒是正值(exercisesCorrect/exercisesDone).谁能帮我弄清楚怎么做？

Answer 1

有几种不同的方法可以做到这一点,但我喜欢用Ajax来调用"WebMethods"

您需要在主表单中包含一个脚本管理器,并将enablepagemethods设置为true

<asp:ScriptManager ID="scm" runat="server" EnablePageMethods="true" />

CS

[WebMethod]
public static string search()
{
    return "worked";
}

Javascript(JQuery Ajax.你可以使用你想要的任何lib)

   $.ajax({
        type: "POST",
        url: "MyPage.aspx/search",
        data: data,
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (msg) {
            alert(msg)
        }
    });

-编辑

要传递参数,您可以执行类似的操作并将其作为帖子正文发送.ASP.NET引擎会自动将其填充到您的方法参数中,假设您的javascript对象中的名称相同

    var post = {
    questionScore: 5,
    exerciseScore: 5
    }

   $.ajax({
        type: "POST",
        url: "MyPage.aspx/testFun",
        data: post,
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (msg) {
            alert(msg)
        }
    });

CS

public static string testFun(double questionScore, double exerciseScore){ //both params should be 5
    return "done"; 
}