{
     protected void Page_Load(object sender, EventArgs e)
      {

      }
   protected void dvWebContent_PreRender(object sender, EventArgs e)
      {
            if (User.Identity.IsAuthenticated)
            {
                  dvWebContent.Rows[0].Visible = true;
                  dvWebContent1.Rows[0].Visible = true;
                  dvWebContent2.Rows[0].Visible = true;
            }
            else
            {
                  dvWebContent.Rows[0].Visible = false;
                  dvWebContent1.Rows[0].Visible = false;
                  dvWebContent2.Rows[0].Visible = false;
            }
      }
}