protected void CancelBTN_Click(object sender, EventArgs e) { try { //gets order num from querystring NameValueCollection coll = Request.QueryString; int po_id = Convert.ToInt32(coll["Po_id"]); DBservices.DeleteOrder(po_id); Response.Redirect("OrderList.aspx", false); } catch (Exception ex) { ErrHandler.WriteError(ex.Message); Response.Write("ארעה שגיאה"); } }