Bot Framework C# 中的继续对话框答案

【问题标题】：Continue Dialog in Bot Framework C#Bot Framework C# 中的继续对话框
【发布时间】：2022-11-14 23:22:09
【问题描述】：

我想检查用户输入是否是 (hello) 以启动对话并继续所有对话流程，但是每当我输入问候消息并且流程开始时，机器人的第一个输入将不会进入对话返回到 OnTurn 消息，对话框停止，所以我想要一种方法来检查对话框是否处于活动状态并继续它，如果不是则跳过它。

public override async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken = default)
    {
        var text = turnContext.Activity.Text;
        if (text == "hello")
        {
            await Dialog.RunAsync(turnContext, ConversationState.CreateProperty<DialogState>(nameof(DialogState)), cancellationToken);
        }
        else 
        {
            await turnContext.SendActivityAsync("dialog is not running");
        }
        await base.OnTurnAsync(turnContext, cancellationToken);

        // Save any state changes that might have occurred during the turn.
        await ConversationState.SaveChangesAsync(turnContext, false, cancellationToken);
    }

正如您在用户输入 hello 后的 else 语句中的代码中看到的那样，然后它会说对话框没有运行。如果有一个活跃的，我怎样才能让机器人继续对话。

【问题讨论】：

标签： c# azure dialog botframework chatbot

【解决方案1】：

需要保存当前的更改。当前代码块中缺少它。尝试更换它。

public override async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken = default)
{
    await base.OnTurnAsync(turnContext, cancellationToken);

    // Save any state changes that might have occurred during the turn.
    await ConversationState.SaveChangesAsync(turnContext, false, cancellationToken);
    await UserState.SaveChangesAsync(turnContext, false, cancellationToken);
var text = turnContext.Activity.Text;
        if (text == "hello")
        {
            await Dialog.RunAsync(turnContext, ConversationState.CreateProperty<DialogState>(nameof(DialogState)), cancellationToken);
        }
        else 
        {
            await turnContext.SendActivityAsync("waiting for dailog");
        }
        await base.OnTurnAsync(turnContext, cancellationToken);

}

protected override async Task OnMessageActivityAsync(ITurnContext<IMessageActivity> turnContext, CancellationToken cancellationToken)
{
    Logger.LogInformation("Running dialog with Message Activity.");

    // Run the Dialog with the new message Activity.
    await Dialog.RunAsync(turnContext, ConversationState.CreateProperty<DialogState>(nameof(DialogState)), cancellationToken);
}

【讨论】：