c# - 如何在对话框之外(如消息 Controller 中)访问 Bot Framework ConversationData？

Question

在我的机器人内的对话框中，我将标志值存储在 ConversationData 中，如下所示:

context.ConversationData.SetValue("SomeFlag", true);

稍后，我需要在将消息分派(dispatch)到对话框之前检查 MessagesController 中的该标志。根据this previous question我尝试通过 StateClient 检索 ConversationData，如下所示:

public async Task<HttpResponseMessage> Post([FromBody] Activity incomingMessage)
{
    StateClient stateClient = incomingMessage.GetStateClient();
    BotData userData = await stateClient.BotState.GetConversationDataAsync(message.ChannelId, message.Conversation.Id);
    bool finishedQuote = userData.GetProperty<bool>("SomeFlag");
    //...
    // do conditional logic, then dispatch to a dialog as normal
}

但是，在运行时，userData 变量保存一个 BotData 对象，其中 userData.Data 为 null，并且我无法通过 检索任何存储的标志获取属性。我在 relevant documentation 中没有看到任何内容这有助于阐明这个问题——我在这里可能做错了什么？难道我有什么误解吗？

Answer 1

以下内容应该可以满足您的需要:

if (activity.Type == ActivityTypes.Message)
{

    var message = activity as IMessageActivity;
    using (var scope = DialogModule.BeginLifetimeScope(Conversation.Container, message))
    {
        var botDataStore = scope.Resolve<IBotDataStore<BotData>>();
        var key = Address.FromActivity(message);

        ConversationReference r = new ConversationReference();
        var userData = await botDataStore.LoadAsync(key, BotStoreType.BotUserData, CancellationToken.None);

        //you can get/set UserData, ConversationData, or PrivateConversationData like below
        //set state data
        userData.SetProperty("key 1", "value1");
        userData.SetProperty("key 2", "value2");
        //get state data
        userData.GetProperty<string>("key 1");
        userData.GetProperty<string>("key 2");

        await botDataStore.SaveAsync(key, BotStoreType.BotUserData, userData, CancellationToken.None);
        await botDataStore.FlushAsync(key, CancellationToken.None);
    }
    await Conversation.SendAsync(activity, () => new Dialogs.RootDialog());
}