ASP.NET Menu Items

Hi

I have an interesting issue.  I am using ASP.NET 4.0 navigation menu and I hide tabs based on a users level.  All seems to work well besides that all of the tabs seems to appear all by themselves after awhile.  The following is my my code to hide the tabs.

public partial class SiteMaster : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            LoginView cp = (LoginView)FindControl("HeadLoginView");
            Label lbl = (Label)FindControl("Label1");
            if (cp.Page.User.Identity.IsAuthenticated == true)
            {
               // string lvl = "";
                if (Session["Level"] != null)
                {
                    lbl.Text = Session["Level"].ToString();
                    if (lbl.Text == "2")
                    {
                        NavigationMenu.Items.RemoveAt(0);
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));

                    }
                    else if (lbl.Text == "1")
                    {
                        NavigationMenu.Items.RemoveAt(0);
                    }
                    else
                    {
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("HR"));
                    }
                }
                             
            }
            else
            {
                NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));
                NavigationMenu.Items.Remove(NavigationMenu.FindItem("HR"));              

            }          
        }
    }
thomasm1948Asked:
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thomasm1948Author Commented:
it seems to be appearing if the page is refreshed
thomasm1948Author Commented:
Hi just modified my code.  I think this should work but still not sure

public partial class SiteMaster : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            LoginView cp = (LoginView)FindControl("HeadLoginView");
            Label lbl = (Label)FindControl("Label1");
            if (cp.Page.User.Identity.IsAuthenticated == true)
            {
               // string lvl = "";
                if (Session["Level"] != null)
                {
                    lbl.Text = Session["Level"].ToString();
                    if (lbl.Text == "2")
                    {
                        NavigationMenu.Items.RemoveAt(0);
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));

                    }
                    else if (lbl.Text == "1")
                    {
                        NavigationMenu.Items.RemoveAt(0);
                    }
                    else
                    {
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));
                        NavigationMenu.Items.Remove(NavigationMenu.FindItem("HR"));
                    }
                }
                else
                {
                    NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));
                    NavigationMenu.Items.Remove(NavigationMenu.FindItem("HR"));  
                }
                             
            }
            else
            {
                NavigationMenu.Items.Remove(NavigationMenu.FindItem("Admin"));
                NavigationMenu.Items.Remove(NavigationMenu.FindItem("HR"));              

            }          
        }
    }
Jesus RodriguezIT ManagerCommented:
Do this on the first time that the page do a postback

If not IsPostback then
 '--Your menu code here
 '--
End If

The other possible cause is that a user belongs to 2 groups and the gets remove for the first condition but reinstate by the second one

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