How to achieve submenus - asp.net-mvc

Question

I am coding the following in Bootstrap 3.0 and MVC 5. I am trying to get Submenus to work. I referenced navbar documentation but I can't get the Billing and Payment structure to be a sub dropdown menu with this structure:
Account Info
License Details
Billing and Payment
Invoices
Payments
Billing
Users
User Settings
Here is my HTML. I need to replace the anchor tag on Billing Payment. What do I put in its place?
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>#Html.ActionLink("Home", "Index", "Home")</li>
<li>#Html.ActionLink("About", "About", "Home")</li>
<li>#Html.ActionLink("Free Trial Setup", "Trial", "Home")</li>
<li class="dropdown">
Account Info
<ul class="dropdown-menu">
<li>#Html.ActionLink("License Details", "License", "Home" )</li>
<li class="dropdown-submenu"></li>
Billing and Payment
<li>#Html.ActionLink("Invoices", "Invoices", "Home")</li>
<li>#Html.ActionLink("Payments", "Payments", "Home")</li>
<li>#Html.ActionLink("Billing Information", "Billing", "Home")</li>
</ul>
<li>User Settings</li>
</ul>
</li>
</ul>
#Html.Partial("_LoginPartial")
</div>
</div>

Answer 1

Based on the solution mentioned in snippet you have to do the following:
Add following to your Site.css file
.dropdown-submenu {
position: relative;
}
.dropdown-submenu > .dropdown-menu {
top: 0;
left: 100%;
margin-top: -6px;
margin-left: -1px;
-webkit-border-radius: 0 6px 6px 6px;
-moz-border-radius: 0 6px 6px;
border-radius: 0 6px 6px 6px;
}
.dropdown-submenu:hover > .dropdown-menu {
display: block;
}
.dropdown-submenu > a:after {
display: block;
content: " ";
float: right;
width: 0;
height: 0;
border-color: transparent;
border-style: solid;
border-width: 5px 0 5px 5px;
border-left-color: #ccc;
margin-top: 5px;
margin-right: -10px;
}
.dropdown-submenu:hover > a:after {
border-left-color: #fff;
}
.dropdown-submenu.pull-left {
float: none;
}
.dropdown-submenu.pull-left > .dropdown-menu {
left: -100%;
margin-left: 10px;
-webkit-border-radius: 6px 0 6px 6px;
-moz-border-radius: 6px 0 6px 6px;
border-radius: 6px 0 6px 6px;
}
then change your code in the _Layout.cshtml to be:
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>#Html.ActionLink("Home", "Index", "Home")</li>
<li>#Html.ActionLink("About", "About", "Home")</li>
<li>#Html.ActionLink("Free Trial Setup", "Trial", "Home")</li>
<li class="dropdown">
Account Info
<ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu">
<li>#Html.ActionLink("License Details", "License", "Home")</li>
<li class="dropdown-submenu">
<a tabindex="-1" href="#">Billing and Payment</a>
<ul class="dropdown-menu">
<li>#Html.ActionLink("Invoices", "Invoices", "Home")</li>
<li>#Html.ActionLink("Payments", "Payments", "Home")</li>
<li>#Html.ActionLink("Billing Information", "Billing", "Home")</li>
<li class="dropdown-submenu">
Users
<ul class="dropdown-menu">
<li>User Settings</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
#Html.Partial("_LoginPartial")
</div>