demo/src/app/components/+dropdown/demos/nested-dropdowns/nested-dropdowns.html
<div class="btn-group" dropdown [autoClose]="false" container="body">
<button id="button-nested" dropdownToggle type="button" class="btn btn-primary dropdown-toggle"
aria-controls="dropdown-nested">
This dropdown has nested submenu <span class="caret"></span>
</button>
<ul id="dropdown-nested" *dropdownMenu class="dropdown-menu"
role="menu" aria-labelledby="button-nested">
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action</a></li>
<li role="menuitem" dropdown triggers="mouseover" placement="right" container="body">
<a dropdownToggle class="dropdown-item dropdown-toggle"
(click)="false">Hover me for nested dropdown <span class="caret"></span></a>
<ul *dropdownMenu class="dropdown-menu" role="menu">
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action</a></li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action1</a></li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action2</a></li>
</ul>
</li>
<li role="menuitem" dropdown triggers="mouseover" placement="right" container="body">
<a dropdownToggle class="dropdown-item dropdown-toggle"
(click)="false">Hover me for nested dropdown <span class="caret"></span></a>
<ul *dropdownMenu class="dropdown-menu" role="menu">
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action</a></li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action1</a></li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Action2</a></li>
</ul>
</li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Something else here</a></li>
<li class="divider dropdown-divider"></li>
<li role="menuitem"><a class="dropdown-item" href="#/dropdowns#nested">Separated link</a></li>
</ul>
</div>