private void AddNewStrucutries(object items)
        {
            if (items == null)
            {
                return;
            }

            foreach (var item in (IEnumerable)items)
            {
                SelectedProdacts.Add((ProdactObject)item);
            }
        }
        private void RemoveSelectedItems(object items)
        {
            if (items == null)
            {
                return;
            }

            var ItemsToDelete = new ArrayList();

            foreach (var item in (IEnumerable)items)
            {
                ItemsToDelete.Add(item);
            }

            foreach (var item in ItemsToDelete)
            {
                SelectedProdacts.Remove((ProdactObject)item);
            }
        }