listview 雙擊 得到第二列的值

string xm;
for (int i = 0; i < listView2.Items.Count; i++)
{
    if (listView2.Items[i].Selected) {
        xm = listView2.Items[i].SubItems[1].Text.ToString().Trim();
        MessageBox.Show(xm);
    }   
}

參考 : http://heisetoufa.javaeye.com/blog/227757