DataGrid中绑定DropDownList

 1protected void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
 2    {
 3
 4        if (e.Item.ItemType == ListItemType.EditItem)
 5        {
 6            DropDownList ddl = new DropDownList();
 7            ddl = ((DropDownList)(e.Item.FindControl("ddlRatingClass")));
 8            ddl.DataSource = RatingClass.getRatingClass().DefaultView;
 9            ddl.DataTextField = "RatingClassName";
            ddl.DataValueField = "RatingClassName";
            ddl.DataBind();
        }
    }