public static string Getproduct_all_category()
 {
     try
     {
         PAWDStoreEntities context = new PAWDStoreEntities();
         var Product = context.GetProductMenu().FirstOrDefault();
         if (Product != null)
         {
             var AllData = context.GetProductSubCategory(Product.Menu_ID).ToList();
             return(JsonConvert.SerializeObject(AllData));
         }
         else
         {
             return(null);
         }
     }
     catch (Exception ex)
     {
         throw ex.InnerException;
     }
 }