ComboBox的值是多少？

Question

private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{
  label1.Text = comboBox1.SelectedValue
}

Answer 1

private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{
   if(comboBox1.SelectedIndex >0)
       label1.Text = comboBox1.SelectedValue
   else
       label1.Text = ((DataRowView)comboBox1.Items[comboBox1.SelectedIndex]).Row["ID"].ToString()
}

Answer 2

private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{
  label1.Text = comboBox1.SelectedValue
}