c# - 发送照片电报 API

Question

我想使用 Telegram.Bot 发送照片图书馆，但它不工作!

这是我的代码:

private void btnSendImage_Click(object sender, RoutedEventArgs e)
    {
        var Bot = new Telegram.Bot.Api(token);

        Task<Telegram.Bot.Types.Update[]> res = Bot.GetUpdates();

        List<string> users = GetIds();
        foreach (var update in res.Result)
        {
            if (!users.Contains("" + update.Message.Chat.Id))
            {
                AddId("" + update.Message.Chat.Id);

            }
        }
        users = GetIds();
        foreach (var item in users)
        {
            if (item.Length > 0)
            {

                var rep = Bot.SendPhoto(Convert.ToInt32(item), txtImagePath.Text, txtMessage.Text);
            }
        }

    }

and txtImagePath.text= "D:\Projects\Telegram Bot\Telegram Bot\bin\Debug\4.jpg";

我用 Bot.SendMessage 测试了它，它工作正常，但我不能发送照片!

Answer 1

我使用了这段代码，它成功了!

var FileUrl = @"C:\\Users\\User\\Documents\\20160201_204055.jpg";
using (var stream = System.IO.File.Open(FileUrl, FileMode.Open))
        {
            FileToSend fts = new FileToSend();
            fts.Content = stream;
            fts.Filename = FileUrl.Split('\\').Last();
            var test = await bot.SendPhoto("@channel Name or chat_id", fts, "My Text");
        }