是否有任何简单的方法可以在 Bot Framework SDKv4 中存储先前的意图值以使用当前话语实体？

Question

Can anyone help me with how to proceed with storing of an intent from previous utterance and binding it to the current entities from the current utterance? In short the context management using available state objects? Thank you.

Like in v3

Context.UserData.SetValue("intent_name",intent);
string previousIntent = Context.UserData.GetValue<string>("intent_name");

How is this done in V4?

Answer 1

In v4 you can get the state properties from the turn context.

Sample:

var userStateAccessors = _userState.CreateProperty<UserProfile>(nameof(UserProfile));
var userProfile = await userStateAccessors.GetAsync(turnContext, () => new UserProfile());

That is defined on OnMessageActivityAsync Task event, which derived from ActivityHandler class. You can see more sample details at StateManagementBot.cs from BotBuilder-Sample StateManagement project.

And this is the Differences between the v3 and v4 .NET SDK

v4 doesn't use UserData, ConversationData, and PrivateConversationData properties and data bags to manage state. ​State is managed via state management objects and property accessors. v4 defines UserState, ConversationState, and PrivateConversationState classes that manage state data for the bot.

Hope this helps.