.net 一个嵌套问题
<%@ Import Namespace= "System.Data " %>
<%@ Page language= "c# " Codebehind= "PbAdd.aspx.cs " AutoEventWireup= "false " Inherits= "CrownRealty.PoliceFire.PbAdd " %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN " >
<HTML>
<HEAD>
<title> PbAdd </title>
<meta name= "GENERATOR " Content= "Microsoft Visual Studio .NET 7.1 ">
<meta name= "CODE_LANGUAGE " Content= "C# ">
<meta name= "vs_defaultClientScript " content= "JavaScript ">
<meta name= "vs_targetSchema " content= "http://schemas.microsoft.com/intellisense/ie5 ">
<LINK href= "../css/default.css " type= "text/css " rel= "stylesheet ">
</HEAD>
<body>
<form id= "Form1 " method= "post " runat= "server ">
<table class= "page_place " cellSpacing= "0 " cellPadding= "0 " width= "100% " border= "0 ">
<tr>
<td vAlign= "middle " align= "center " width= "32 " height= "24 "> <IMG height= "16 " src= "../images/page/page_place.gif " width= "16 "> </td>
<td> 当前位置：治安消防 > <asp:label id= "lblPositionName " runat= "server "> 岗位排班 </asp:label> >排班信息浏览 </td>
</tr>
</table>
<br>
<table height= "0 " cellSpacing= "0 " cellPadding= "0 " width= "95% " align= "center " border= "0 ">
<tr>
<td> <a href= 'PbAdd.aspx?ID= <%=Request.QueryString[ "ID "].ToString().Trim()%> '> 岗位排班 </a>
</td>
</tr>
</table>
<br>
<table cellSpacing= "0 " cellPadding= "0 " width= "95% " align= "center " border= "0 ">
<tr>
<td> <TABLE id= "Table3 " cellSpacing= "0 " cellPadding= "0 " width= "100% " border= "0 ">
<TR>
<TD width= "20 " height= "25 "> <IMG height= "25 " src= "../images/page/table_tit_l.gif " width= "20 "> </TD>
<TD class= "title1 " noWrap> <a href= 'PbUserShow.aspx?ID= <%=Request.QueryString[ "ID "].ToString().Trim()%> '> 按人员查询 </a> </TD>
<TD width= "10 "> <IMG height= "25 " src= "../images/page/table_tit_r.gif " width= "10 "> </TD>
<TD width= "20 " height= "25 "> <IMG height= "25 " src= "../images/page/table_tit_l.gif " width= "20 "> </TD>
<TD class= "title1 " noWrap> <a href= 'PbShow.aspx?ID= <%=Request.QueryString[ "ID "].ToString().Trim()%> '> 按日期查询 </a> </TD>
<TD width= "10 "> <IMG height= "25 " src= "../images/page/table_tit_r.gif " width= "10 "> </TD>
<TD width= "20 " height= "25 "> <IMG height= "25 " src= "../images/page/table_tit_l.gif " width= "20 "> </TD>
<TD class= "title1 " noWrap> <a href= 'PbGwShow.aspx?ID= <%=Request.QueryString[ "ID "].ToString().Trim()%> '> 按岗位查询 </a> </TD>
<TD width= "10 "> <IMG height= "25 " src= "../images/page/table_tit_r.gif " width= "10 "> </TD>
<TD class= "tdimages " align= "right " width= "99% "> </TD>
</TR>
</TABLE>
<TABLE class= "tableclass1 " id= "Table4 " cellSpacing= "0 " cellPadding= "0 " width= "100% " border= "0 ">
<TR>
<TD class= "table_top "> </TD>
</TR>
<TR>
<TD> <table class= "tableclass " id= "Table1 " cellSpacing= "0 " cellPadding= "3 " width= "100% " align= "center ">
<tr>
<td> <asp:DataGrid id= "DataGrid1 " runat= "server " Width= "100% " BorderStyle= "None " BorderColor= "#CCCCCC "
BorderWidth= "1px " BackColor= "White " CellPadding= "3 " AutoGenerateColumns= "False ">
<SelectedItemStyle Font-Bold= "True " ForeColor= "White " BackColor= "#669999 "> </SelectedItemStyle>
<ItemStyle ForeColor= "#000066 "> </ItemStyle>
<HeaderStyle Font-Bold= "True " ForeColor= "White " BackColor= "#006699 "> </HeaderStyle>
<FooterStyle ForeColor= "#000066 " BackColor= "White "> </FooterStyle>
<Columns>
<asp:TemplateColumn>
<HeaderTemplate>
<FONT face= "宋体 "> 选择 </FONT>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox id= "Checkbox1 " runat= "server "> </asp:CheckBox>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField= "name " HeaderText= "岗位 "> </asp:BoundColumn>
<asp:TemplateColumn HeaderText= "包含班次 ">
<ItemTemplate>
<asp:DataGrid id= "DataGrid2 " runat= "server " Width= "100% " BorderStyle= "None " BorderColor= "#CCCCCC " BorderWidth= "1px " BackColor= "White " CellPadding= "3 " AutoGenerateColumns= "False " DataSource= ' <%# ((DataRowView)Container.DataItem).Row.GetChildRows( "myrelation ") %> '>
<SelectedItemStyle Font-Bold= "True " ForeColor= "White " BackColor= "#669999 "> </SelectedItemStyle>
<ItemStyle ForeColor= "#000066 "> </ItemStyle>
<HeaderStyle Font-Bold= "True " ForeColor= "White " BackColor= "#006699 "> </HeaderStyle>
<FooterStyle ForeColor= "#000066 " BackColor= "White "> </FooterStyle>
<Columns>
<asp:BoundColumn DataField= "bcname " HeaderText= "班次 "> </asp:BoundColumn>
</Columns>
</asp:DataGrid>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle Visible= "False " HorizontalAlign= "Left " ForeColor= "#000066 " BackColor= "White " Mode= "NumericPages "> </PagerStyle>
</asp:DataGrid> </td>
</tr>
</table>
</TD>
</TR>
<TR>
<TD class= "table_bot "> </TD>
</TR>
</TABLE>
</td>
</tr>
</table>
</form>
</body>
</HTML>
[解决办法]
ds.Relations.Add( "myrelation ",
ds.Tables[ "admin "].Columns[ "id "],
ds.Tables[ "sub_menu "].Columns[ "gwid "],false);
==================================================
DataRelation xxx = ds.Relations.Add( "myrelation ",
ds.Tables[ "admin "].Columns[ "id "],
ds.Tables[ "sub_menu "].Columns[ "gwid "]);
DataSource= ' <%# ((DataRowView)Container.DataItem).Row.GetChildRows( "myrelation ") %> '
==================================================================
DataSource= ' <%# ((DataRowView)Container.DataItem).Row.GetChildRows( "xxx ") %> '