Video Card, Audio Card And Animation Card In Bot Framework

using Microsoft.Bot.Builder.Dialogs; 
using Microsoft.Bot.Connector; 
using System; 
using System.Collections.Generic; 
using System.Threading.Tasks; 
  
namespace Bot_Application1.Dialogs { [Serializable] 
    public class HeroCardDemo: IDialog < object > { 
        public async Task StartAsync(IDialogContext context) { 
            context.Wait(MessageReceivedAsync); 
        } 
  
        private async Task MessageReceivedAsync(IDialogContext context, IAwaitable < IMessageActivity > result) { 
            var message = context.MakeMessage(); 
            var activity = await result; 
            message.Attachments.Add(GetCard(activity.Text)); 
            await context.PostAsync(message); 
  
        } 
  
        private Attachment GetCard(string title) { 
            string imageUrl = "http://gyansangrah.com/ArticleImages/basic_silverlight_example_one.jpg"; 
  
            var card = new VideoCard() { 
                Title = "Gyansangrah Videos", 
                Subtitle = "Range input element in HTML5", 
                Text = "Subscribe", 
                Image = new ThumbnailUrl { 
                    Url = imageUrl 
                }, 
                Media = new List < MediaUrl > { 
                    new MediaUrl("https://www.youtube.com/watch?v=XqqFeRQHG1c") 
                } 
            }; 
  
            return card.ToAttachment(); 
        } 
    } 
} 

private Attachment GetCard(string title) { 
    string imageUrl = "http://gyansangrah.com/ArticleImages/basic_silverlight_example_one.jpg"; 
  
    var card = new AudioCard() { 
        Title = "My Audio", 
        Subtitle = "Sample Audio", 
        Text = "Subscribe", 
        Image = new ThumbnailUrl { 
            Url = imageUrl 
        }, 
        Media = new List < MediaUrl > { 
            new MediaUrl("https://www.ee.columbia.edu/~dpwe/sounds/music/africa-toto.wav") 
        } 
    }; 
  
    return card.ToAttachment(); 
} 

private Attachment GetCard(string title) { 
    string imageUrl = "http://gyansangrah.com/ArticleImages/basic_silverlight_example_one.jpg"; 
  
    var card = new AnimationCard() { 
        Title = "My Audio", 
        Subtitle = "Sample Audio", 
        Text = "Subscribe", 
        Image = new ThumbnailUrl { 
            Url = imageUrl 
        }, 
        Media = new List < MediaUrl > { 
            new MediaUrl("http://gyansangrah.com/ArticleImages/marquee_tag_html_two.gif") 
        } 
    }; 
  
    return card.ToAttachment(); 
} 

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