Ouverture de Panneaux Accordéon Bootstrap en utilisant Javascript

Question

Je fais un accordéon en utilisant Bootstrap que je voudrais ajouter dynamiquement des panneaux. J'ai cette partie qui fonctionne. voir cette fiddle

je peux ajouter des panneaux à la volée et les fonctionne correctement en accordéon (lorsque vous cliquez sur un panneau, il s'effondre et aussi ferme tout panneau précédemment ouvert)

Je voudrais ajouter une fonction supplémentaire que lors de l'ajout de nouveaux panneaux, la fonction expandLast() ouvre automatiquement le dernier panneau ajouté automatiquement (ce qui devrait fermer les panneaux précédemment ouverts). Mais non seulement cela ne fonctionne pas, mais cela brise également la fonctionnalité de l'accordéon; tous les panneaux restent ouverts sauf s'ils sont de nouveau cliqués. Voir le code ci-dessous:

var count = 1; 

$('#myBtn').click(function() { 

    var parent = document.getElementById("accordion"); 
    var wrapper = document.createElement('div'); 
    wrapper.className = "panel panel-default"; 


    var title = document.createElement('div'); 
    title.className = "panel-heading"; 
    title.setAttribute("id", "cartItemTitle"); 
    title.setAttribute("data-toggle", "collapse"); 
    title.setAttribute("data-target", "#collapsible-" + count); 
    title.setAttribute("data-parent", "#accordion"); 
    title.innerHTML = "panel: " + count; 

    var body = document.createElement('div'); 
    body.setAttribute("id", "collapsible-" + count); 
    body.className = "panel-collapse collapse"; 
    //body.className="panel-body"; 
    body.innerHTML = "Lorem ipsum dolor sit amet, habeo novum possim in duo, solet aperiam postulant at eam. Te dolore ullamcorper vim. Semper officiis ad vix. Maluisset aliquando consectetuer ne pro. Mollis docendi at mei, errem dolorem voluptaria sed ea."; 

    wrapper.appendChild(title); 
    wrapper.appendChild(body); 

    parent.appendChild(wrapper); 

    count = count + 1; 

    expandLast(); 
}); 

function expandLast() 
{ 
    var allItems=document.getElementsByClassName("collapse"); 
    var lastItem=allItems[allItems.length-1]; 
    var lastItemSelector="#"+lastItem.getAttribute("id"); 
    $(lastItemSelector).collapse(); 
} 

une idée de ce qui cause cela? -Merci

Answer 1

J'ai refaçonné le JavaScript qui crée les panneaux pour inclure les conteneurs et les balises d'ancrage pour lui donner la structure de panneau appropriée. Vous pouvez modifier si nécessaire.

La partie principale que vous pouvez essayer est le déclenchement du nouveau panneau en utilisant quelque chose comme ce qui suit:

$parent.find('> div:last-of-type a').trigger('click');

Voici un exemple de travail:

var count = 1; 
 

 
$('#myBtn').click(function() { 
 

 
    var $parent = $('#accordion'); 
 
    var $wrapper = $('<div>', { class: 'panel panel-default' }); 
 
    
 
    var $panelHeading = $('<div>', { 
 
    id: 'heading' + count, 
 
    class: 'panel-heading', 
 
    role: 'tab' 
 
    }); 
 

 
    var $titleLink = $('<h4>', { 
 
    class: 'panel-title' 
 
    }).append($('<a>', { 
 
    role: 'button', 
 
    class: 'collapsed', 
 
    'data-toggle': 'collapse', 
 
    'data-parent': '#accordion', 
 
    'href': '#collapsible-' + count, 
 
    'aria-expanded': 'true', 
 
    'aria-controls': 'collapsible-' + count 
 
    }).text('New Panel ' + count)); 
 

 
    var $panelBody = $('<div class="panel-body">') 
 
    .text("Lorem ipsum dolor sit amet, habeo novum possim in duo, solet aperiam postulant at eam. Te dolore ullamcorper vim. Semper officiis ad vix. Maluisset aliquando consectetuer ne pro. Mollis docendi at mei, errem dolorem voluptaria sed ea."); 
 
    
 
    var $panelContainer = $('<div>', { 
 
    id: 'collapsible-'+count, 
 
    class: 'panel-collapse collapse', 
 
    role: 'tabpanel', 
 
    'aria-labelledby': 'heading'+count 
 
    }); 
 

 
    $wrapper.append($panelHeading.append($titleLink)); 
 
    $wrapper.append($panelContainer.append($panelBody)); 
 
    $parent.append($wrapper); 
 
    $parent.find('> div:last-of-type a').trigger('click'); 
 

 
    count++; 
 
});

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/> 
 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> 
 

 
<a id="myBtn" class="btn btn-primary">Add Item</a> 
 

 
<hr> 
 

 
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true"> 
 
    <div class="panel panel-default"> 
 
    <div class="panel-heading" role="tab" id="headingOne"> 
 
     <h4 class="panel-title"> 
 
     <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne"> 
 
      Collapsible Group Item #1 
 
     </a> 
 
     </h4> 
 
    </div> 
 
    <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne"> 
 
     <div class="panel-body"> 
 
     Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. 
 
     </div> 
 
    </div> 
 
    </div> 
 
    <div class="panel panel-default"> 
 
    <div class="panel-heading" role="tab" id="headingTwo"> 
 
     <h4 class="panel-title"> 
 
     <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo"> 
 
      Collapsible Group Item #2 
 
     </a> 
 
     </h4> 
 
    </div> 
 
    <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo"> 
 
     <div class="panel-body"> 
 
     Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. 
 
     </div> 
 
    </div> 
 
    </div> 
 
    <div class="panel panel-default"> 
 
    <div class="panel-heading" role="tab" id="headingThree"> 
 
     <h4 class="panel-title"> 
 
     <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree"> 
 
      Collapsible Group Item #3 
 
     </a> 
 
     </h4> 
 
    </div> 
 
    <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree"> 
 
     <div class="panel-body"> 
 
     Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS. 
 
     </div> 
 
    </div> 
 
    </div> 
 
</div>