Context.User.Identity.GetUserName()

Hi All,
I have a ASP.Net Web Forms application. I am using EF code first, with Model Binding. Everything is going good. I am ready to start incorporating Authentication. I am using the out of the box Membership Provider. I pointed the Membership provider to my existing Database. All went well, everything was created,  ie. User table, Role table, etc. I have a LoginView control that I am using:
<asp:LoginView ID="LoginView1" runat="server" ViewStateMode="Disabled"> <AnonymousTemplate> <ul class="nav navbar-nav navbar-right"> <li><a id="A5" runat="server" href="~/Account/Register">Register</a></li> <li><a id="A6" runat="server" href="~/Account/Login">Log in</a>&l ...