public DataTable GetStockByVendor(string Vendor,string Root_No,string LocateSection)
 {
     try
     {
         DBO.QueryItem db = new QueryItem(ref USEDB);
         return db.GetStockByVendor(Vendor, Root_No, LocateSection);
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }