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Home Backend Development PHP Tutorial javascript - 下拉框change事件能在初始化的时候调用吗?

javascript - 下拉框change事件能在初始化的时候调用吗?

Jun 06, 2016 pm 08:12 PM
html javascript node.js php

一个下拉列表,值改变调用jquery的change事件请求ajax数据
我现在想页面在载入时得到某个option下的ajax数据,想实现这样一个功能,请问有什么好的办法吗?

回复内容:

一个下拉列表,值改变调用jquery的change事件请求ajax数据
我现在想页面在载入时得到某个option下的ajax数据,想实现这样一个功能,请问有什么好的办法吗?

页面载入时用jquery选择器找到相应的option对其进行点击。

<code>$(function(){
    $(option).click();
})</code>
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可以用jQuery的trigger()方法触发

$(document).ready(function(){
    $('select').find('option:eq(0)').select(function(){
        alert('加载ajax');
    });
    $('select').find('option:eq(0)').trigger('select');
});
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html页

js
function Change(){

<code>var strvalue=$("#sel").val();
$.ajax({     
    url: "/Main/Func?valu="+strvalue,
    type: "POST",
    dataType: "json",
    success: function (jdata, stat) {
        alert("成功");
    }
});</code>
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}

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