数据绑定错误
错误:DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'N_tid'. 
Line 73: <asp:TemplateField HeaderText="新闻类型">
Line 74: <EditItemTemplate>
Line 75: <asp:DropDownList ID="DropDownList1" runat="server" 
Line 76: DataSourceID="AccessDataSource2" DataTextField="N_type"  
Line 77: DataValueField="N_tid" SelectedValue='<%# Bind("N_tid") %>'>

是一个DetailsView编辑模式下的下拉框里面的内容,有问题的代码:
  <asp:TemplateField HeaderText="新闻类型">
  <EditItemTemplate>
  <asp:DropDownList ID="DropDownList1" runat="server" 
  DataSourceID="AccessDataSource2" DataTextField="N_type"  
  DataValueField="N_tid" SelectedValue='<%# Bind("N_tid") %>'>
  </asp:DropDownList>
  <asp:AccessDataSource ID="AccessDataSource2" runat="server" 
  DataFile="~/hdu.mdb" SelectCommand="SELECT * FROM [ntype]">
  </asp:AccessDataSource>  
  </EditItemTemplate>
但是用了同样语句的另一个模块却没有问题:
  <InsertItemTemplate>
  <asp:DropDownList ID="DropDownList2" runat="server" 
  DataSourceID="AccessDataSource3" DataTextField="N_type"  
  DataValueField="N_tid" SelectedValue='<%# Bind("N_tid") %>'>
  </asp:DropDownList>
  <asp:AccessDataSource ID="AccessDataSource3" runat="server" 
  DataFile="~/hdu.mdb" SelectCommand="SELECT * FROM [ntype]">
  </asp:AccessDataSource>
  </InsertItemTemplate>

------解决方案--------------------
那你看下你从数据库中取到了这个字段吗？