//自定义了Person类(有Name,Age,Heigth等属性)

List<Person> persons=new List<Person>();
persons.Add(new Person("WuMiao",18,175));
persons.Add(new Person("YeXinYv",20,170));
persons.Add(new Person("WuDong",18,175));//ListBox控件实现
lb_PersonsList.DataSource=persons;        //指定数据源
lb_PersonList.DisplayMember="Name";    //界面显示的是人的名字//ComboBox控件实现  (与ListBox的实现类似)
cmb_PersonList.DataSource=persons;
cmb_PersonList.DisplayMember="Name";

/// <summary>
/// 为ComboBox绑定数据源并提供下拉提示
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="combox">ComboBox</param>
/// <param name="list">数据源</param>
/// <param name="displayMember">显示字段</param>
/// <param name="valueMember">隐式字段</param>
/// <param name="displayText">下拉提示文字</param>
public static void Bind<T>(this ComboBox combox, IList<T> list, string displayMember, string valueMember, string displayText)
{AddItem(list, displayMember, displayText);combox.DataSource = list;combox.DisplayMember = displayMember;if (!string.IsNullOrEmpty(valueMember))combox.ValueMember = valueMember;
}
private static void AddItem<T>(IList<T> list, string displayMember, string displayText)
{Object _obj = Activator.CreateInstance<T>();Type _type = _obj.GetType();if (!string.IsNullOrEmpty(displayMember)){PropertyInfo _displayProperty = _type.GetProperty(displayMember);_displayProperty.SetValue(_obj, displayText, null);}list.Insert(0, (T)_obj);
}

ListBox listBox;
listBox.DataSource = ds;
listBox.DataTextField = "要显示的字段名";
listBox.DataValueField = "id";
listBox.DataBind();

listBox.DataSource = ds.Tables[0];
listBox.DisplayMember = "carsnumber";
listBox.ValueMember = "id";

for( int i = 0; i < listBox.Items.Count; i++ )
{
DataRowView drv = listBox.Items[i] as DataRowView;
if( drv != null )
{
MessageBox.Show( "Text:" + drv[listBox.DisplayMember].ToString() );
MessageBox.Show( "Value:" + drv[listBox.ValueMember].ToString() );
}
}