模拟javascript以从下拉菜单中选择 [英] Simulate javascript to choose from dropdown

问题描述

我试图模拟一个javascript来从下面的下拉列表中进行选择。我在这里尝试这个代码，但它不工作。

I am trying to simulate a javascript to choose from the dropdown list below. I am trying this code here but its not working.

$('select[name="srctype"]').val(2).trigger('change');

我在这里做错了什么？我的JavaScript搞砸了以下代码布局吗？

Am i doing something wrong here? Is my javascript messed up for this layout of code below?

我试图选择 value =single

<select name="srctype" class="formselect" onchange="typesel_change()">
    <option value="any" selected="selected">any</option>
    <option value="single">Single host or alias</option>
    <option value="network">Network</option>
    <option value="pptp">PPTP clients</option>
    <option value="pppoe">PPPoE clients</option>
    <option value="l2tp">L2TP clients</option>
    <option value="wan">WAN subnet</option>
    <option value="wanip">WAN address</option>
    <option value="lan">LAN subnet</option>
    <option value="lanip">LAN address</option>
</select>

推荐答案

试试：

$('select[name="srctype"]').val('single')

或

$('select[name="srctype"] option:eq(1)').prop('selected',1)

你的评论，这为你工作：

As you noted in your comment, this worked for you:

(function ($) {
    $('select[name="srctype"]').val('single');
}).call(this, jQuery);

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