TeleBotDotNet is a Telegram Bot API for the .NET Framework. It is written in C# and fully object-oriented.
To send a message:
var teleBot = new TeleBot("YOUR_API_KEY_HERE", false);
teleBot.SendMessage(new SendMessageRequest
{
ChatId = updateResponse.Message.UserChat == null ?
updateResponse.Message.GroupChat.Id : updateResponse.Message.UserChat.Id,
Text = "This is a test.",
ReplyToMessageId = updateResponse.Message.MessageId
});For more see Naxiz/TeleBotDotNetExamples.