c# - how to use session in hyper link selection -


this code link, want navigate if , if session not null, how can it, please me...

        <asp:hyperlink id="hyperlink1" navigateurl="year1sem1sub1.aspx" runat="server" align="left" onclick=(>cis 11301     fundamentals of information systems</asp:hyperlink>     <img src="images/guestpic.jpg" align="right"/>

this authentication.ascx code

    public partial class webusercontrol1 : system.web.ui.usercontrol {     protected void page_load(object sender, eventargs e)     {         if (session["loggeduser"] == null)         {             response.redirect("logintothesite.aspx");         }      } }

it's not clear want hyperlink, think understand mean

if (session["loggeduser"] != null) {       hyperlink1.navigateurl = "year1sem1sub1.aspx";         //       // or response redirect here       // } else {       hyperlink1.visible = false; }

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