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Question

// html

<div id="accordion" >
   <h3 class='headAcc' id="head_1">First header</h3>
   <div>First content panel</div>
   <h3 class='headAcc'id="head_2">Second header</h3>
   <div>Second content panel</div>
</div>

// java描述

$('#accordion').accordion({collapsible:true,active:false});

问题：默认情况下关闭所有标签页。所以我需要使用标题元素id获取选项卡的索引。我怎么能这样做。

我试过以下。但没有运气。提前谢谢。

var indexOfheaderOne= $('h3#head_1').index(); //returns 0 which is ok
var indexOfheaderTwo= $('h3#head_2').index(); // returns 2 instead of 1. 

//I think the reason is it will count the indexes based on all sibling elements
//not just from header elements. Is there any workaround for this.

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对@Thusar解决方案的修改很少

假设你的html在手风琴之外包含更多<h3>个元素。然后，下面的解决方法将适用于该类型的场景。

HTML

<h3 id="test1">Example Head 1</h3> 
<h3 id="test2">Example Head 2</h3> 
<h3 id="test3">Example Head 3</h3> 

<div id="accordion" >
   <h3 class='headAcc' id="head_1">First header</h3>
   <div>First content panel</div>
   <h3 class='headAcc'id="head_2">Second header</h3>
   <div>Second content panel</div>
</div>

的JavaScript

alert($('h3#head_1').index('h3.headAcc'));//return 0 as expected
alert($('h3#head_2').index());//return 2 because element is in after first tab div
alert($('h3#head_2').index('h3.headAcc'));//return 1 as expected

Answer 1

DEMO

var indexOfheaderTwo= $('h3#head_2').index('h3'); //returns 1 as index of h3 with respect to parent is traced and it is the 2nd child of parent with tag h3.

索引从0开始。

问题的解释。

var indexOfheaderOne= $('h3#head_1').index(); //returns 0 As it is first child of parent div

var indexOfheaderTwo= $('h3#head_2').index(); // returns 2 As it is third child of parent div

阅读.index()

Answer 2

你对它返回2的假设是正确的。

将索引选择器更改为：

var indexOfheaderOne= $('h3').index($('#head_1')); //returns 0 which is ok
var indexOfheaderTwo= $('h3').index($('#head_2')); // returns 1.

JsFiddle：http://jsfiddle.net/GxQ3c/2/

Answer 3

$("#accordion").accordion("option", "active", i);

你试试这个吗？手风琴可能是内置功能。</ p>

尝试演示this。

使用标题元素ID的jquery accordion选项卡索引

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3 个答案: