问题是这样的.项目采用Nhibernate 返回的都是list 类型的实体类型.
我有一个UpFiles的实体类 和一个Client_Order实体类.他们的关系是多对一 一个客户订单可能会上传多个文件.
这是UpFiles的实体类的属性 property我就不贴了.

Code
      private int _id;
      private string _original_file_name;
      private string _save_file_name;
      private DateTime _updatetime;
      protected Employee _Employee;
      private int _file_state;
      private string _file_url;
      protected Client_Order _Client_Order;
 
 
这是Client_Order的实体类

Code
  private IList _UpFiles;
      private int _id;
      private string _order_id;
      private string _order_type;
      private string _client_add_PCB_PCBA;
      private string _client_PCB_Share;
      private string _client_add_gauge;
      private string _client_add_plane;
      private string _client_add_stencil;
      private string _client_add_dzzl;
      private int _make_description;
      private int _make_downup_request;
      private string _make_downup_thickness;
      private int _make_product_purpose;
      private int _make_method;
      private bool _make_rework;
      private string _make_rework_id;
      private int _uncork_CHIP_class;
      private int _uncork_IC_radiator;
      private int _uncork_testpoint;
      private int _uncork_plugin;
      private int _uncork_other;
      private int _uncork_hpgbk;
      private int _mark_request;
      private int _mark_count;
      private int _mark_jswdwk;
      private int _frame_spec;
      private int _frame_screw;
      private int _frame_color;
      private int _material_thickness;
      private int _material_size;
      private int _panel;
      private int _panel_count;
      private int _stick_method;
      private string _stick_other;
      private int _lettering_request;
      private int _lettering_other;
      private int _press_format;
      private string _press_A;
      private string _press_B;
      private string _press_X;
      private string _press_Y;
      private string _press_unit;
      private int _other_add_film;
      private string _other_PN;
      private string _other_content;
      protected Client _Client;
 
 
  我现在是返回了一个文件Ilist<UpFiles>的列表 里面通过nh的 映射子多获取到与文件对应的 客户订单实体类.
  当我做ui的时候问题出现了.DataList中模板绑定字段的语句是<%# Eval("updatetime" )%>这样的.但是我现在 想拿到Client_Order这个对象 里的 order_name