protected void btnclearall_Click(object sender, EventArgs e) { using (cart obj = new cart()) { if (Session["UserID"] != null) { if (Session["UserID"] != "") { obj._userid = Convert.ToInt64(Session["UserID"].ToString()); obj._sessionid = Session["Current"].ToString(); obj._orderid = Convert.ToInt64("0"); obj.cart_clear(); FillRepeater(); lblMsg.Text = "Your Cart is Clear"; lblMsg.Visible = true; } } else { obj._userid = Convert.ToInt64("0"); obj._sessionid = Session["Current"].ToString(); obj._orderid = Convert.ToInt64("0"); obj.cart_clear(); FillRepeater(); lblMsg.Text = "Your Cart is Clear"; lblMsg.Visible = true; } } }