Activity.Text null 的抓取卡片按钮点击

Question

我创建了一张新卡片。当用户点击按钮时应该被捕获。

 var card = new HeroCard
                {
                    Title = "Welcome ",
                    Text = "Click the buttons below to update this card",
                    Buttons = new List<CardAction>
                    {
                        new CardAction
                        {
                            Type= ActionTypes.MessageBack,
                            Title = "Update Card",
                            Text = "UpdateCardAction",
                            DisplayText = "UpdateCardAction",
                            Value =  new JObject { { "count", 0 } }
                        },
                        new CardAction(ActionTypes.OpenUrl, "Get an overview", null, "Get an overview", "Get an overview", "https://docs.microsoft.com/en-us/azure/bot-service/?view=azure-bot-service-4.0"),

                    }
                };

                await turnContext.SendActivityAsync(MessageFactory.Attachment(card.ToAttachment()));

检查按钮的方法

protected override async Task OnMessageActivityAsync(ITurnContext<IMessageActivity> turnContext, CancellationToken cancellationToken)
        {
            turnContext.Activity.RemoveRecipientMention();

            switch (turnContext.Activity.Text.Trim())
            {

             ................

问题

为什么它没有捕捉到，因为当用户单击按钮时 turnContext.Activity.Text 始终为 null。

Answer 1

当使用ActionTypes.MessageBack时，似乎无法获取Text 属性

要获取值，您可以通过转至 turnContext.Activity.Value 访问它，在本例中它将是JObject { { "count", 0 } }
如果您希望获得 DisplayText，您可以执行以下操作

var channelData = JObject.FromObject(turnContext.Activity.ChannelData); var displayText = channelData["messageBack"]["displayText"].ToString();

Activity.Text null 的抓取卡片按钮点击

Catching card button click with Activity.Text null

c#

botframework

azure-bot-service

检查按钮的方法

问题