C# Bot框架中未显示英雄卡'；s仿真器

我是Bot框架的新手，我正在使用C#编写一个简单的Bot，它应该返回一张英雄卡样本作为回复。问题是英雄卡没有出现在Bot框架通道模拟器中。代码如下：

    public async Task MessageReceivedAsync(IDialogContext context, IAwaitable<object> arg)
    {
        var referenceMessage = await arg as IMessageActivity;
        var msg = (Activity)context.MakeMessage();
        Activity replyToConversation = msg.CreateReply($"Buscando resultados para {referenceMessage.Text}");
        replyToConversation.Recipient = msg.From;
        replyToConversation.Type = "message";
        replyToConversation.ReplyToId = referenceMessage.Id;
        replyToConversation.AttachmentLayout = "carousel";
        replyToConversation.Attachments = new List<Attachment>();
        List<CardImage> CardImages = new List<CardImage>();
        CardImages.Add(new CardImage()
        {
            Url = "https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/BMW-Z4_diagonal_front_at_IAA_2005.jpg/243px-BMW-Z4_diagonal_front_at_IAA_2005.jpg"
        });

        CardAction btnWebsite = new CardAction()
        {
            Type = "openUrl",
            Title = "Open",
            Value = "http://bmw.com"
        };

        HeroCard plCard = new HeroCard()
        {
            Title = $"{referenceMessage.Text}",
            Subtitle = $"Resultados de busqueda para {referenceMessage.Text}",
            Images = CardImages,
            Tap = btnWebsite
        };

        var attachment = plCard.ToAttachment();
        replyToConversation.Attachments.Add(attachment);
        await context.PostAsync(replyToConversation);

        //var connector = new ConnectorClient(new Uri(msg.ServiceUrl));
        //var reply = connector.Conversations.SendToConversationAsync(replyToConversation);
    }

public异步任务消息receivedAsync（IDialogContext上下文，IAwaitable参数）
{
var referenceMessage=wait arg作为IMessageActivity；
var msg=（活动）context.MakeMessage（）；
Activity replyToConversation=msg.CreateReply（$“Buscando resultados para{referenceMessage.Text}”）；
replyToConversation.Recipient=msg.From；
replyToConversation.Type=“message”；
replyToConversation.ReplyToId=referenceMessage.Id；
replyToConversation.AttachmentLayout=“旋转木马”；
replyToConversation.Attachments=新列表（）；
List CardImages=新列表（）；
添加（新的CardImage（）
{
Url=”https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/BMW-Z4_diagonal_front_at_IAA_2005.jpg/243px-BMW-Z4_diagonal_front_at_IAA_2005.jpg"
});
CardAction btnWebsite=新的CardAction（）
{
Type=“openUrl”，
Title=“打开”，
值=”http://bmw.com"
};
HeroCard plCard=新HeroCard（）
{
Title=$“{referenceMessage.Text}”，
Subtitle=$“Resultados de busqueda para{referenceMessage.Text}”，
图像=心脏图像，
Tap=btnWebsite
};
var attachment=plCard.ToAttachment（）；
replyToConversation.Attachments.Add（附件）；
wait context.PostAsync（replyToConversation）；
//var connector=newconnectorclient（新Uri（msg.ServiceUrl））；
//var reply=connector.Conversations.SendToConversationAsync（ReplyToConversationAsync）；
}

如您所见，我一直在尝试使用上下文和连接器，但卡没有显示。我调试了应用程序，可以看到输入信息被正确捕获

---

对此有何想法？

我将发布您可能的解决方案

*如果您的函数在某个IDialog类中，并且希望得到如下结果：

private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> argument)

使用

---

希望有帮助：）

我将发布您可能的解决方案

*如果您的函数在某个IDialog类中，并且希望得到如下结果：

private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> argument)

使用

---

希望有帮助：）

有时问题来自图像的url。将图像url更改为此“”。如果有效，请告诉我们。有时问题来自图像的url。将图像url更改为此“”。如果它有效，让我们知道。嗨，鲍勃，非常感谢你的回答，它非常有效，帮助我简化了代码。干杯听到这个消息很高兴嗨，鲍勃，非常感谢你的回答，它非常有效，帮助我简化了代码。干杯听到这个消息很高兴

replyToConversation.AttachmentLayout = "carousel",

replyToConversation.AttachmentLayout =  AttachmentLayoutTypes.Carousel;