Question

我有一个IReliableDictionary，需要把字典中的项目移到IList中，然后从我可靠的服务中返回。

似乎我做不了。任何类型的列表，所以我确定我接近它错了。

public async Task<IList<CustomerOrderItem>> GetOrdersAsync()
{   


   IReliableDictionary<CustomerOrderItemId, CustomerOrderItem> orderItems =
   await this.StateManager.GetOrAddAsync<IReliableDictionary<CustomerOrderItemId, CustomerOrderItem>>(CustomerOrderItemDictionaryName);

   Dictionary<KeyValuePair<CustomerOrderItemId, CustomerOrderItem>, KeyValuePair<CustomerOrderItemId, CustomerOrderItem>> items = orderItems.ToDictionary(v => v);

   IList<CustomerOrderItem> list = orderItems.ToList(); ???

   ...
}

关于如何从字典中取出项目并将它们放入列表的任何想法？

Answer 1

IReliableDictionary（就像一个IDictionary）是IEnumerable的键值对，所以你可以这样：

public async Task<IList<CustomerOrderItem>> GetOrdersAsync()
    {
        IReliableDictionary<CustomerOrderItemId, CustomerOrderItem> orderItems =
        await this.StateManager.GetOrAddAsync<IReliableDictionary<CustomerOrderItemId, CustomerOrderItem>>(CustomerOrderItemDictionaryName);

        var list = orderItems.Select(kvp => kvp.Value).ToList();
        return list;
    }

Answer 2

IReliableDictionary<K,V>实施IEnumerable<KeyValuePair<K, V>>，因此您可以执行ToList。

也许确保导入名称空间。

将IReliableDictionary转换为IList

2 个答案: