How can I hide the menu of Master page until the user do login in asp.net

Question

I create a master page with a navigation bar. I made index page as a login page, so I use the login control in index.aspx which is registered under the master page.

Now my question is how can I hide the navigation bar which is in master page until the user do login, after the user doing successful login the navigation bar should appear

Answer 1

Use this in the Master Page (C# code)

<% if (HttpContext.Current.User.Identity.IsAuthenticated ) { %>

<div>navigation html when is authenticated</div>

<% } else { %>

<div>navigation html when is NOT authenticated</div>

<% } %>

Answer 2

In webforms you can use the LoginView control to display different content depending on the user's authentication status:

<asp:LoginView ID="LoginView1" Runat="server">
  <LoggedInTemplate>
   <div>Navigation Bar</div>
  </LoggedInTemplate>
  <AnonymousTemplate>
    <div>Unauthenticated content</div>
  </AnonymousTemplate>
</asp:LoginView>

Answer 3

 protected void Page_Load(object sender, EventArgs e)    
{        
        String path = HttpContext.Current.Request.Url.AbsolutePath;

        if (path == "/login.aspx")
        {
            Menu1.Visible = false;
        }       
    }