[Bug]: citations do not work in c# project.

[xzf0587]

Language

C#

Version

latest

Description

I tried to add citations for ai messages by overriding SayCommandAsync in C# project. And I found that there will be no citation in the messages.
It works fine in js/ts projects. List the code below. Please help me to figure out the problem. Thanks.
Since the citation util class is not exposed yet mentioned in #2309, I copied the CitationUtils code from the library into my project.

using Microsoft.Bot.Builder;
using Microsoft.Bot.Schema;
using Microsoft.Teams.AI.AI.Action;
using Microsoft.Teams.AI.AI.Planners;
using Microsoft.Teams.AI.AI;
using Newtonsoft.Json.Linq;
using Microsoft.Bot.Connector;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace MyTeamsApp021401
{
    public class ActionHandlers
    {
        [Action(AIConstants.SayCommandActionName, isDefault: true)]
        public async Task<string> SayCommandAsync([ActionTurnContext] ITurnContext turnContext, [ActionParameters] PredictedSayCommand command, CancellationToken cancellationToken = default)
        {
            if (command.Response.Content == null || command.Response.GetContent<string>() == string.Empty)
            {
                return "";
            }

            string originalContent = command.Response.GetContent<string>();
            string content = "";
            Root response = null;
            try
            {
                response = JsonSerializer.Deserialize<Root>(originalContent);
            }
            catch (Exception error)
            {
                Console.Error.WriteLine($"Response is not valid json, send the raw text. error: {error}");
                await turnContext.SendActivityAsync(MessageFactory.Text(originalContent), default);
                return "";
            }

            // If the response from the AI includes citations, those citations will be parsed and added to the SAY command.
            List<ClientCitation> citations = new();
            int position = 1;

            if (response.Results != null && response.Results.Count > 0)
            {
                foreach (var contentItem in response.Results)
                {
                    if (!string.IsNullOrEmpty(contentItem.CitationTitle))
                    {
                        var clientCitation = new ClientCitation
                        {
                            Position = position,
                            Appearance = new ClientCitationAppearance
                            {
                                Name = contentItem.CitationTitle ?? $"Document #{position}",
                                Url = contentItem.CitationUrl,
                                Abstract = CitationUtils.Snippet(contentItem.CitationContent, 500)
                            }
                        };
                        content += $"{contentItem.Answer}[{position}]<br>";
                        position++;
                        citations.Add(clientCitation);
                    }
                    else
                    {
                        content += $"{contentItem.Answer}<br>";
                    }
                }
            }
            else
            {
                content = originalContent;
            }

            bool isTeamsChannel = turnContext.Activity.ChannelId == Channels.Msteams;

            if (isTeamsChannel)
            {
                content.Replace("\n", "<br>");
            }


            var contentText = citations.Count < 1 ? content : CitationUtils.FormatCitationsResponse(content);

            var referencedCitations = citations.Count > 0 ? CitationUtils.GetUsedCitations(contentText, citations) : null;

            var message = MessageFactory.Text(contentText);
            message.Type = ActivityTypes.Message;
            if (isTeamsChannel)
            {
                message.ChannelData = new
                {
                    feedbackLoopEnabled = false

                };
            }
            message.Entities = new List<Entity>
             {
                new AIEntity
                {
                    AtType = "Message",
                    AtContext = "https://schema.org",
                    AtId = "",
                    AdditionalType = new List<string> { "AIGeneratedContent" },
                    Citation = referencedCitations,
                    //Citation = "Source: Microsoft Teams Documentation",
                    Type = "https://schema.org/Message"
                }
            };
            await turnContext.SendActivityAsync(message, default);

            return string.Empty;
        }
    }
}

public class Result
{
    [JsonPropertyName("answer")]
    public string Answer { get; set; }
    [JsonPropertyName("citationTitle")]
    public string CitationTitle { get; set; }
    [JsonPropertyName("citationContent")]
    public string CitationContent { get; set; }
    [JsonPropertyName("citationUrl")]
    public string CitationUrl { get; set; }
}

public class Root
{
    // add json property name result
    [JsonPropertyName("results")]
    public List<Result> Results { get; set; }
}

Reproduction Steps

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[Prasad-MSFT]

Hi @xzf0587,
Currently there is no information available regarding the plans to support ai labels, citations, and feedback buttons in C#.
To achieve your requirements, we recommend you give your feedback in Teams Feedback Portal and you can now get latest Teams platform updates by subscribing to the RSS feed

[corinagum]

@Prasad-MSFT, that information is incorrect... Teams AI does support Powered by AI features

This is the correct place to file Teams AI bugs.

@singhk97 Could you please investigate? Thanks.

[Prasad-MSFT]

Apologies @corinagum, when we searched, we could not find any C# references in any of the official documentation.
https://learn.microsoft.com/en-us/microsoftteams/platform/bots/how-to/bot-messages-ai-generated-content?tabs=desktop%2Cbotmessage