protected void lbtnSignOut_Click(object sender, EventArgs e) { adpOrd.DeleteNullOrder((int)Session["orderToday"]); Session["cartToday"] = null; Session["BuyerID"] = null; Session["orderToday"] = null; Session["cartItems"] = null; Session["selid"] = null; Session["pName"] = null; Session["pPrice"] = null; FormsAuthentication.SignOut(); Response.Redirect("~/landingPage.aspx"); }