如何使用jQuery.ajax [英] how to use jQuery.ajax

问题描述

大家好，

我对jQuery非常陌生，并尝试使用jQuery.ajax做简单的例子
但这每次都向我显示以下消息

"Microsoft JScript运行时错误:"myMethod"未定义"

请指导我缺少的地方.


我有以下HTML代码.

Hello Everyone,

I am very new to jQuery and trying to do simple examples using jQuery.ajax
but every time this is showing me the following message

"Microsoft JScript runtime error: ''myMethod'' is undefined"

Please guide me where I am lacking.


I have the following HTML code.

<input type="button" onclick="callServer()" value="Test Button" />
    <asp:Label ID="lblTest" runat="server">

服务器端代码

the server side code

[WebMethod]
    public void myMethod()
    {
        lblTest.Text = DateTime.Now.ToString();
    }

jQuery代码

the jQuery code

function callServer() {
    $.ajax(
    {
    url: "~/jQuery.aspx.cs/"+myMethod,
    contenType:"application/json; charset=utf-8",
    dataType :"json",
    success:onSuccess,
    fail:onFail
    });
}

function onSuccess() {
    alert("Success!!");
}
function onFail() {
    alert("Failed!!");
}

推荐答案

.ajax( { 网址:〜/jQuery.aspx.cs/" + myMethod， contenType:"application/json; charset = utf-8"， dataType:"json"， 成功:成功， 失败:失败 }); } 函数onSuccess(){ alert(成功！"); } 函数onFail(){ alert(失败！"); }

.ajax( { url: "~/jQuery.aspx.cs/"+myMethod, contenType:"application/json; charset=utf-8", dataType :"json", success:onSuccess, fail:onFail }); } function onSuccess() { alert("Success!!"); } function onFail() { alert("Failed!!"); }

看看下面有关此主题的提示/技巧文章.(不是广告:))
简化Asp.Net Core Ajax

更新-或者，尝试如下更改网址.
url: "~/jQuery.aspx/myMethod",

Have a look at my Tips/Tricks Article on this topic below.(not an advertisement :))
Simplifying Asp.Net Core Ajax

Update - Alternatively, try by changing your url as below.
url: "~/jQuery.aspx/myMethod",

您必须在代码中进行一些修改

Hi,

you have to change some little bit in your code

function callServer() {

这篇关于如何使用jQuery.ajax的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！