botFramework v4如何在LUIS调用后处理对话框响应

Question

I have a bot written in C# that is using LUIS to determine intents. I have a method that makes a call to the LUIS service and then looks for an 'Open_Case' intent. The model has a CaseNumber entity defined which may or may not be included in the response from the LUIS service. If the response doesn't have a case number entity I start a dialog to ask the user for the case number. Once I have a case number I then want to return a card with case information.

Here's the code I have:-

/// <summary>
/// Dispatches the turn to the requested LUIS model.
/// </summary>
private async Task DispatchToLuisModelAsync(ITurnContext context, string appName, DialogContext dc, CancellationToken cancellationToken =
default (CancellationToken)) {
var result = await botServices.LuisServices[appName].RecognizeAsync(context, cancellationToken);
var intent = result.Intents ? .FirstOrDefault();

    string caseNumber = null;

    if (intent ? .Key == "Open_Case") {
    if (!result.Entities.ContainsKey("Case_CaseNumber")) {
    var dialogResult = await dc.BeginDialogAsync(CaseNumberDialogId, null, cancellationToken);
     } else {
      caseNumber = (string)((Newtonsoft.Json.Linq.JValue) result.Entities["Case_CaseNumber"].First).Value;
      var cardAttachment = botServices.CaseInfoServices.LookupCase(caseNumber);
      var reply = context.Activity.CreateReply();
      reply.Attachments = new List < Attachment > () {
       cardAttachment
      };
      await context.SendActivityAsync(reply, cancellationToken);
     }
    }
   }

What I'm struggling with is where the code send the card response should sit. In the code I currently have I send the card if the number was returned in the LUIS response, but if there was no number and I start the dialog then I only get access to the number either in the final step of the dialog or in the dialog result in the root turn handler. I've currently duplicated the reply inside the final step in the dialog, but it feels wrong and inelegant. I'm sure there must be a way that I can collect the number from LUIS or the dialog and THEN send the response from a single place instead of duplicating code.

Any suggestions gratefully received...

Answer 1

我得出的结论是，我需要将显示卡的代码放入bot类的方法中，然后在dialogTurnStatus等于Complete时从代码片段中的else以及转弯处理程序中调用它