private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
int index = 9;
if (index != comboBox1.SelectedIndex)
{
index = comboBox1.SelectedIndex;
comboBox2.DataSource = itens.tiposBebida(index + 1);
comboBox2.DisplayMember = "nome";
comboBox2.ValueMember = "id";
comboBox2.Enabled = true;
}
comboBox2.Text = "";
}