コード例 #1
0
        /// <summary>
        /// Sends a possibly long text message.
        /// Short messages are sent as text messages.
        /// Long messages are sent as text files.
        /// </summary>
        /// <inheritdoc cref="TelegramBotClientExtensions.SendTextMessageAsync(ITelegramBotClient, ChatId, string, ParseMode?, IEnumerable{MessageEntity}?, bool?, bool?, int?, bool?, IReplyMarkup?, CancellationToken)"/>
        public static Task SendPossiblyLongTextMessageAsync(
            this ITelegramBotClient botClient,
            ChatId chatId,
            string text,
            ParseMode?parseMode = null,
            IEnumerable <MessageEntity>?entities = null,
            bool?disableWebPagePreview           = null,
            bool?disableNotification             = null,
            bool?protectContent                 = null,
            int?replyToMessageId                = null,
            bool?allowSendingWithoutReply       = null,
            IReplyMarkup?replyMarkup            = null,
            CancellationToken cancellationToken = default)
        {
            if (text.Length <= 4096)
            {
                return(botClient.SendTextMessageAsync(chatId,
                                                      text,
                                                      parseMode,
                                                      entities,
                                                      disableWebPagePreview,
                                                      disableNotification,
                                                      protectContent,
                                                      replyToMessageId,
                                                      allowSendingWithoutReply,
                                                      replyMarkup,
                                                      cancellationToken));
            }
            else // too large, send as file
            {
                var filename = parseMode switch
                {
                    ParseMode.Markdown => "long-message.md",
                    ParseMode.Html => "long-message.html",
                    ParseMode.MarkdownV2 => "long-message.md",
                    _ => "long-message.txt",
                };

                return(botClient.SendTextFileFromStringAsync(chatId,
                                                             filename,
                                                             text,
                                                             null,
                                                             null,
                                                             parseMode,
                                                             entities,
                                                             null,
                                                             disableNotification,
                                                             protectContent,
                                                             replyToMessageId,
                                                             null,
                                                             replyMarkup,
                                                             cancellationToken));
            }
        }