hiding a web user control during login

Hello pals,i have got a web user control which has a panel inside it.When i test it and hide on another page it works fine but when i do the same during login,its null really.I need to hide it during login.Here is what am trying to do

LoginView log= (LoginView)Master.FindControl("LoginView1");
            if (log!= null)
            { 
            
            }


            var student = (StudentPanel )log.FindControl("StudentPanel");
            if (student != null)
            { 
                     label1.text="found";    
            }


           

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