private void button1_Click(object sender, EventArgs e) { inputTxt.Focus(); if (string.IsNullOrEmpty(inputTxt.Text)) { return; } string inp = inputTxt.Text; mensagens.Rows.Add(new String[] { "", inp }); inputTxt.Clear(); string resposta = mnham.getResposta(inp); mensagens.Rows.Add(new String[] { resposta, "" }); mensagens.FirstDisplayedScrollingRowIndex = mensagens.RowCount - 1; }