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public class Person
{
public int Age { get; set; }
public string Name { get; set; }
}
protected void Page_Load(object sender, EventArgs e)
{
DropDownList ddl = new DropDownList();
List<Person> persons = new List<Person>();
persons.Add(new Person() { Age = 12, Name = "ll" });
persons.Add(new Person() { Age = 12, Name = "l2" });
persons.Add(new Person() { Age = 12, Name = "l3" });
ddl.DataTextField = "Name";
ddl.DataValueField = "Age";
ddl.DataSource = persons;
ddl.DataBind();
ddl.Items.Add(new ListItem("全部", "-1"));
}