public List<Stationary_Catalogue> getItemDescription(string category)
 {
     StationaryCatalogueEnt ent = new StationaryCatalogueEnt();
     Stationary_Catalogue searchCat = new Stationary_Catalogue();
     searchCat.Category = category;
     List<Stationary_Catalogue> desc = ent.getStatCat(searchCat);
     return desc;
 }
 public List<Stationary_Catalogue> getItemCode(string description)
 {
     StationaryCatalogueEnt ent = new StationaryCatalogueEnt();
     Stationary_Catalogue searchCat = new Stationary_Catalogue();
     searchCat.Description = description;
     List<Stationary_Catalogue> code = ent.getStatCat(searchCat);
     return code;
 }