private void Conect_btn_Click(object sender, EventArgs e) { var name = Name_tb.Text; if (!string.IsNullOrEmpty(name)) { label3.Text = ""; if (DGV_RoomList.SelectedRows.Count == 0) { label3.Text = "Некуда подключатся"; return; } var room_index = DGV_RoomList.SelectedRows[0].Index; var room_guid = clientEngine.RoomsStat.ElementAt(room_index).Pasport; clientEngine.JOINGame(room_guid, name); } else { label3.Text = "Укажите ваше имя"; } }