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Wednesday, October 11, 2017

Getting Started with Hero Card Design Using Microsoft Bot Framework

Getting Started with Hero Card Design Using Microsoft Bot Framework
Introduction:
The Bot Framework has supported the different type of rich cards and provides a richer interaction experience to the user. In this article, I will share about how to integrate Hero card UI design in Bot Application. The Hero card is a multipurpose card, its contains large a image, title text, sub text, multiple buttons, and a card tap action.
Prerequisite:
I have explained about Bot framework Installation, deployment and implementation in the below article


Download Demo Code :

Create New Bot Application:
Let's create a new bot application using Visual Studio 2017. Open Visual Studio > Select File > Create New Project (Ctrl + Shift +N) > Select Bot application.
The Bot application template was created with all the components and all required NuGet references installed in the solutions.
Create New HeroCardDialog Class:
Step 1:
You can Create new HeroCardDialog class for a show the HeroCard dialog. Right Click on project > Select Add New Item > Create a class that is marked with the [Serializable] attribute (so the dialog can be serialized to state) and implement the IDialog interface.
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Connector;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace BotHeroCard.Dialogs
{
   [Serializable]
   public class HeroCardDialog : IDialog<object>
   {
Step 2
IDialog interface has only StartAsync() method. StartAsync() is called when the dialog becomes active. The method is passed the IDialogContext object, used to manage the conversation.
public async Task StartAsync(IDialogContext context)
       {
           context.Wait(this.MessageReceivedAsync);
       }


Step 3:
Create a MessageReceivedAsync method and write following code for the welcome message and show the list of demo options dialog.
 ///
       /// MessageReceivedAsync
       ///
       /// context">
       /// result">
       ///
       public async virtual Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> result)
       {
           var message = await result;
           var welcomeMessage = context.MakeMessage();
           welcomeMessage.Text = "Welcome to bot Hero Card Demo";

           await context.PostAsync(welcomeMessage);
    
          await this.DisplayHeroCard(context);
       }
       ///
       ///
       ///
       /// context">
       ///
       public async Task DisplayHeroCard(IDialogContext context)
       {

           var replyMessage = context.MakeMessage();
           Attachment attachment = GetProfileHeroCard(); ;
           replyMessage.Attachments = new List<Attachment> { attachment };
           await context.PostAsync(replyMessage);
       }


After user enter the first message, bot will reply welcome message like below
Step 4: Design Hero Card:
The Hero card typically contains a large image, one or more buttons, and text. Hero Card class has the following property
  1. Title - Title text of the card
  2. Subtitle -sub title text for the title


  1. Text – Summary text to display on the card
  2. Images – Display large image
  3. Buttons - One or more buttons. The Skype allow only 5 buttons will display on a card. If you have more buttons, you can create two cards.
  4. Tap - An action that is triggered when a user taps on the card.
The following code showing design the user profile message with image, text, subtext and action button. .
     private static Attachment GetProfileHeroCard()
       {
           var heroCard = new HeroCard
           {
               // title of the card
               Title = "Suthahar Jegatheesan",
               //subtitle of the card
               Subtitle = "Microsoft certified solution developer",
               // navigate to page , while tab on card
               Tap = new CardAction(ActionTypes.OpenUrl, "Learn More", value: "http://www.devenvexe.com"),
               //Detail Text
               Text = "Suthahar J is a Technical Lead and C# Corner MVP. He has extensive 10+ years of experience working on different technologies, mostly in Microsoft space. His focus areas are  Xamarin Cross Mobile Development ,UWP, SharePoint, Azure,Windows Mobile , Web , AI and Architecture. He writes about technology at his popular blog http://devenvexe.com",
               // list of  Large Image
               Images = new List<CardImage> { new CardImage("http://csharpcorner.mindcrackerinc.netdna-cdn.com/UploadFile/AuthorImage/jssuthahar20170821011237.jpg") },
               // list of buttons
               Buttons = new List<CardAction> { new CardAction(ActionTypes.OpenUrl, "Learn More", value: "http://www.devenvexe.com") , new CardAction(ActionTypes.OpenUrl, "C# Corner", value: "http://www.c-sharpcorner.com/members/suthahar-j"), new CardAction(ActionTypes.OpenUrl, "MSDN", value: "https://social.msdn.microsoft.com/profile/j%20suthahar/") }
           };

           return heroCard.ToAttachment();
       }


The above code will generate hero card and reply to the user
Run Bot Application
The emulator is a desktop application that lets us test and debug our bot on localhost. Now, you can click on "Run the application" in Visual studio and execute in the browser

Test Application on Bot Emulator
You can follow the below steps to test your bot application.
  1. Open Bot Emulator.
  2. Copy the above localhost url and paste it in emulator e.g. - http://localHost:3979
  3. You can append the /api/messages in the above url; e.g. - http://localHost:3979/api/messages.
  4. You won't need to specify Microsoft App ID and Microsoft App Password for localhost testing, so click on "Connect".

Summary
In this article, you learned how to create a Bot application using Visual Studio 2017 and create hero card design using bot framework. If you have any questions/feedback/ issues, please write in the comment box.


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