public async Task <bool> DeleteShoppingListAsync(string id) { var oldItem = ShoopingLists.Where((ShoppingList arg) => arg.Id == id).FirstOrDefault(); ShoopingLists.Remove(oldItem); return(await Task.FromResult(true)); }
public async Task <bool> UpdateShoppingListAsync(ShoppingList shoppingList) { var oldItem = ShoopingLists.Where((ShoppingList arg) => arg.Id == shoppingList.Id).FirstOrDefault(); ShoopingLists.Remove(oldItem); ShoopingLists.Add(shoppingList); return(await Task.FromResult(true)); }