This is similar to the question asked before . But here it is a side bar i maintain with two menu . When I click the menu item it expands and once I click the submenu , it postbacks and open the correct form. But I want the selected menu item open after post back. Here there are two menu with submenu on the sidebar. Please help how to keep the corresponding submenu open after post back. THE FOLLOWING CODE IS WRITTEN IN MASTER PAGE. How to solve using javascript or any code behind (C#). Please advise .
<div id="sidebar" class="container">
<div id="sidebarColumn" class="col-md-3">
<nav class="navbar " id="sidebar-wrapper" role="navigation">
<ul class="nav sidebar-nav" style="height: auto;">
<li>
<asp:HyperLink href="1" runat="server">Main</asp:HyperLink>
</li>
<li class="dropdown">
<asp:HyperLink href="#" class="dropdown-toggle" data-toggle="dropdown" runat="server" role="button" aria-haspopup="true" aria-expanded="false">Admin</asp:HyperLink>
<ul class="dropdown-menu" role="menu">
<li>
<asp:HyperLink href="2" runat="server">REG1</asp:HyperLink>
</li>
</ul>
</li>
<li class="dropdown">
<asp:HyperLink href="#" class="dropdown-toggle" data-toggle="dropdown" runat="server" role="button" aria-haspopup="true" aria-expanded="false">Masters<span class="caret"></span></asp:HyperLink>
<ul id="ulMaster" class="dropdown-menu" role="menu">
<li>
<asp:HyperLink href="M1" runat="server">Master1</asp:HyperLink>
</li>
<li>
<asp:HyperLink href="M2" runat="server">Master2</asp:HyperLink>
</li>
</ul>
</li>
</ul>
</nav>
</div>
<div class="col-md-9" id="maincontent">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>