Create Multi-level Dropdowns In Bootstrap 4

Create Multi-level Dropdowns In Bootstrap 4
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License: MIT
   

A jQuery script to extend the native Bootstrap 4 dropdowns component that allows you to toggle the unlimited level of sub-dropdowns on click or hover.

A great solution to create a multi-level dropdown menu on the Bootstrap navbar without breaking the native HTML markup.

How to use it:

1. To create a click-triggered multi-level dropdown, just insert the JavaScript file bootstrap4-dropdown-ml-hack.js after jQuery & Bootstrap and we're done.

<link rel="stylesheet" href="/path/to/cdn/bootstrap.min.css" />
<script src="/path/to/cdn/jquery.slim.min.js"></script>
<script src="/path/to/cdn/bootstrap.min.js"></script>
<script src="bootstrap4-dropdown-ml-hack.js"></script>
<div class="dropdown mt-3">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
      Dropdown button
  </button>
  <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
      <a class="dropdown-item" href="#">Action</a>
      <div class="dropdown dropright">
          <a class="dropdown-item dropdown-toggle" href="#" id="dropdown-layouts" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Layouts</a>
          <div class="dropdown-menu" aria-labelledby="dropdown-layouts">
              <a class="dropdown-item" href="#">Basic</a>
              <a class="dropdown-item" href="#">Compact Aside</a>
              <div class="dropdown-divider"></div>
              <div class="dropdown dropright">
                  <a class="dropdown-item dropdown-toggle" href="#" id="dropdown-layouts" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Custom</a>
                  <div class="dropdown-menu" aria-labelledby="dropdown-layouts">
                      <a class="dropdown-item" href="#">Fullscreen</a>
                      <a class="dropdown-item" href="#">Empty</a>
                      <div class="dropdown-divider"></div>
                      <a class="dropdown-item" href="#">Magic</a>
                  </div>
              </div>
          </div>
      </div>
      <a class="dropdown-item" href="#">Something else here</a>
  </div>
</div>

2. To create a hover-triggered multi-level dropdown, include the bootstrap4-dropdown-ml-hack-hover.css & bootstrap4-dropdown-ml-hack-hover.js on the page and add the dropdown-hover-all & dropdown dropdown-hover classes to your dropdown as shown below:

<link rel="stylesheet" href="/path/to/cdn/bootstrap.min.css" />
<link rel="stylesheet" href="bootstrap4-dropdown-ml-hack-hover.css" />
<script src="/path/to/cdn/jquery.slim.min.js"></script>
<script src="/path/to/cdn/bootstrap.min.js"></script>
<script src="bootstrap4-dropdown-ml-hack-hover.js"></script>
<div class="dropdown-hover-all">
  <!-- .dropdown elements -->
</div>
<div class="dropdown dropdown-hover">
  <!-- toggle and menu elements -->
</div>

This awesome jQuery plugin is developed by dallaslu. For more Advanced Usages, please check the demo page or visit the official website.