public bool AddEntries(Entries entries)
 {
     using (var ctx = new FoodCaloriesEntities())
     {
         ctx.Entries.Add(entries);
         ctx.SaveChanges();
     }
     return true;
 }
 public bool DeleteEntrie(DateTime dairyid, int entrieid)
 {
     using (var ctx = new FoodCaloriesEntities())
     {
         var entity = ctx.Entries.FirstOrDefault(b => b.IdEntry == entrieid);
         ctx.Entries.Remove(entity);
         ctx.SaveChanges();
     }
     return true;
 }
 public void UpdateEntrie(Entries entity,DateTime dairyid, int entrieid )
 {
     using (var ctx = new FoodCaloriesEntities())
     {
         var entrie = ctx.Entries.Include("Diary").FirstOrDefault(b=>b.IdEntry==entrieid && b.Diary.CurrentDate==dairyid);
         entrie.Quantity = entity.Quantity;
         ctx.SaveChanges();
     }
 }