How to get breadcrumbs path in li HTML MVC anchor tag

See more:

ASP.NET

C#3.5

MVC5

Here is my example:

<ul>
        <li><a href="GrandParent.html">Grand Parent</a>
            <ul>
                <li><a href="Parent.html">Parent</a>
                    <ul>
                        <li><a href="child.html">child</a></li></ul>
                </li>
            </ul>
        </li>
    </ul>

every li element has a anchor tag next to it (not shown in the code, please assume that).

Now if a select value "Child" from the above code then i should get the below result "Grand Parent/ Parent / Child" and if i select parent then i should get "Grand Parent / Parent"

So basically the i want to get parent with all its child

Here is my code:

@helper GetTreeView(Abacus_CMS.Models.AbacusModel siteMenu, int parentID)
 {
 var url = new System.Web.Mvc.UrlHelper(Context.Request.RequestContext);
 foreach (var i in siteMenu.AbacusMenuList.Where(a => a.ParentCatagoryId.Equals(parentID)))
 {
         <li>
             @{ var submenu = siteMenu.AbacusMenuList.Where(a => a.ParentCatagoryId.Equals(i.Id)).Count();}
             @if (submenu > 0)
             {

             <li style="margin-left: -6px;">
                 <a href="@url.RouteUrl("GettingStarted", new { catname = HttpUtility.UrlEncode(i.Name.Replace(' ', '-'))})" id="@i.Name.Replace(' ', '-').ToLower()" onclick="GetParents()">
                     <i class="fa fa-chevron-right" aria-hidden="true"style="margin-left: 25px; font-size: 10px;">
                     </i><span class="title" style="margin-left: 0px;">@i.Name</span>
                     <span class="arrow " style="height: 4px;"></span>

                 </a>
                 <ul class="sub-menu">
                     @treeview.GetTreeView(siteMenu, i.Id)
                     @* Recursive  Call for Populate Sub items here*@
                 </ul>
             </li>

             @*<span class="collapse collapsible">&nbsp;</span>*@
             }
             else
             {
                 <a href="@url.RouteUrl("GettingStarted", new { catname = HttpUtility.UrlEncode(i.Name.Replace(' ', '-')) })" style="margin-left: 30px;" id="@i.Name.Replace(' ', '-').ToLower()">

                         @i.Name
                     </a>
                     }

                     </li>

             }
             }

how to Get breadcrumb path as text??