How to send message to Public Group contain my bot already (using your C# code)?
//below only send to myself
Interaction.InputBox("Type some text to send to ourselves\n(Saved Messages)", "Send to self");
How to send message to Public Group contain my bot already (using your C# code)?
//below only send to myself
Interaction.InputBox("Type some text to send to ourselves\n(Saved Messages)", "Send to self");
Read the README and follow its tutorial.
It demonstrate how to send a message in a group you're in.
Note: this library is for controlling user account, it is not recommended for bot account. You should use Telegram.Bot instead