Microsoft Bot Service - setting up greeting message

Question

Today, I wanted to implement greeting message to my chatbot when users enter chat. I looked to some tutorial and saw that it seems to be easy. The chatbot works when I run on WebChat on Microsoft Azure Bot Service. Here is the screenshot picture that show what I have done. In the first picture you can see I put code in ConversationUpdate activity, and when I run build.cmd command in terminal, it shows an error which you can see on the second picture. Have in mind that I am new into Microsoft Bot Service. Can anyone please tell me what am I doing wrong? Thank you

https://prnt.sc/k7vl8h https://prnt.sc/k7vl1l

Answer 1

from your first image error message, it states that your 'Activity' is not defined. You should declare your Activity message and replace with activity.

Update your HandleSystemMessage method so it looks like the following:

private Activity HandleSystemMessage(Activity activity)
{
    if (activity.Type == ActivityTypes.DeleteUserData)
    {
        // Implement user deletion here
        // If we handle user deletion, return a real message
    }
    else if (activity.Type == ActivityTypes.ConversationUpdate)
    {
        // Handle conversation state changes, like members being added and removed

        IConversationUpdateActivity update = activity;
        var client = new ConnectorClient(new Uri(activity.ServiceUrl), new MicrosoftAppCredentials());
        if (update.MembersAdded != null && update.MembersAdded.Any())
        {
            foreach (var newMember in update.MembersAdded)
            {
                if (newMember.Id != activity.Recipient.Id)
                {
                    var reply = activity.CreateReply();
                    reply.Text = $"Welcome {newMember.Name}!";
                    client.Conversations.ReplyToActivityAsync(reply);
                }
            }
        }
    }
    else if (activity.Type == ActivityTypes.ContactRelationUpdate)
    {
        // Handle add/remove from contact lists
    }
    else if (activity.Type == ActivityTypes.Typing)
    {
        // Handle knowing tha the user is typing
    }
    else if (activity.Type == ActivityTypes.Ping)
    {
    }

    return null;
}