modify the designation of a particular element's group

My goal is to create a webpage that features multiple tables with data. To prevent the page from getting too long, I want users to have the ability to collapse these tables by clicking on the header. I intend to use a + icon to signify expandable content and a - icon to indicate collapsible content. This means I need to switch the class name of the i tag that contains the icon. However, since there may be several tables with identical i tags, I need a solution that can cover this scenario.

Here is an example of the HTML code:

<table class="table table-bordered">
        <thead class="heading" id="thead">
      <tr id="tr">
         <th id="th" colspan="3"><i class="icon-plus"></i> Basic info</th>
      </tr>
    </thead>
    <tbody class="content">
        <tr>
          <td>Registration</td>
          <td>ABC 123</td>
          <td>&nbsp;</td>
        </tr>
        </tbody>
</table>

<table class="table table-bordered">
        <thead class="heading" id="thead">
      <tr id="tr">
         <th id="th" colspan="3"><i class="icon-plus"></i> More info</th>
      </tr>
    </thead>
    <tbody class="content">
        <tr>
          <td>Start time</td>
          <td>11:57</td>
          <td>&nbsp;</td>
        </tr>
        </tbody>
</table>

Additionally, here is the JavaScript code for this functionality:

<script type="text/javascript">
jQuery(document).ready(function() {
  jQuery('.content').show();
  jQuery('.heading').click(function()
  {
    jQuery(this).next('.content').slideToggle('0');
    jQuery(this).parent().next("i").removeClass('icon-plus').addClass('icon-minus');
  });
});
</script>

Although the hiding and showing of the tbody elements is working correctly, I'm encountering issues with changing the icon. Any suggestions?

Answer №1

Consider updating

jQuery(this).parent().next("i").removeClass('icon-plus').addClass('icon-minus'); 

with the following:

jQuery(this).find('i').toggleClass('icon-plus icon-minus');

Answer №2

It is crucial to avoid assigning the same ID to multiple elements on a page as it can lead to complications when referencing specific elements.

When it comes to jQuery, make use of addClass and removeClass methods:

jquery('.headingClass').removeClass('.headingclass');
jquery(this + 'i').addClass('.headingclass');

Implement it like this:

<script type="text/javascript">
jQuery(document).ready(function() {
  jQuery('.content').show();
  jQuery('.heading').click(function()
  {
    jquery('.headingClass').removeClass('.headingclass');
    jquery(this + 'i').addClass('.headingclass');
    jQuery(this).next('.content').slideToggle('0');
    jQuery(this).parent().next("i").removeClass('icon-plus').addClass('icon-minus');
  });
});
</script>

Answer №3

Opt for jQuery(this).find("i") over jQuery(this).parent().next("i")

In the scenario at hand, the context of jQuery(this) is the thead element; the target i element should be treated as a descendant, not a sibling. Therefore, using .parent().next("i") attempts to locate an element on the same level as your thead and tbody elements!

Answer №4

Give this a try (without the plus and minus icons)!

Note: I've made a few adjustments to the markup.

CSS

i { padding:4px; cursor:pointer; }
.icon-minus { color:red; }
.icon-minus:before { content:"-"; }
.icon-plus { color:green; }
.icon-plus:before { content:"+"; }

HTML

<table class="table table-bordered">
<thead class="heading" >
    <tr >
        <th colspan="3" ><i class="icon-minus"></i>Basic Info</th>
    </tr>
</thead>
<tbody class="content">
<tr>
    <td>Registration</td>
    <td>ABC 123</td>
    <td>&nbsp;</td>
</tr>
</tbody>
</table>

<table class="table table-bordered">
<thead class="heading" >
    <tr >
        <th colspan="3"> <i class="icon-minus"></i>More Info</th>
    </tr>
</thead>
<tbody class="content">
<tr>
    <td>Start Time</td>
    <td>11:57</td>
    <td>&nbsp;</td>
</tr>
</tbody>
</table>

​jQuery

jQuery('.heading').bind('click',function(){
       jQuery(this).siblings('tbody').slideToggle('0');
       jQuery(this).find('i').toggleClass('icon-minus icon-plus');
});

​​

View Demo

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