protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (Session["UserName"] == null) { // Logout.Visible = false; Response.Redirect("Login.aspx"); } if (!string.IsNullOrEmpty(Request.QueryString["role"])) { string roleid = Request.QueryString["role"].ToString(); } DataTable dt = pl.GetAllProduct(); datalist.DataSource = dt; datalist.DataBind(); } }