listview和dropdownlist的结合

namespace dropdownlist
{
    public partial class dropdownlist : System.Web.UI.Page
    {


        protected void ListView1_ItemUpdating(object sender, ListViewUpdateEventArgs e)
        {
            
            DropDownList ddl=(DropDownList)ListView1.Items[e.ItemIndex].FindControl("DropDownList1");
            e.NewValues["gender"] = ddl.SelectedItem.Value;
        }

        protected void ListView1_ItemCreated(object sender, ListViewItemEventArgs e)
        {
            DropDownList ddl = (DropDownList)e.Item.FindControl("DropDownList1");
            if (ddl != null)
            {
                DataRowView lvi = (DataRowView)e.Item.DataItem;
                if (lvi != null)
                {
                    var lvi2 = (DataSet1.T_genderRow)lvi.Row;
                    ddl.SelectedValue = lvi2.gender;
                }
            }
        }

        protected void ListView1_ItemInserting(object sender, ListViewInsertEventArgs e)
        {
            DropDownList ddl=(DropDownList)e.Item.FindControl("DropDownList1");
            e.Values["gender"] = ddl.SelectedValue;
        }

    }
}