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<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Master/Detail</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListView
ID="lstProductCategories"
DataSourceId="srcProductCategory"
DataKeyNames="Id"
runat="server">
<LayoutTemplate>
<div class="categoryContainer">
<asp:PlaceHolder
id="itemPlaceholder"
Runat="server" />
</div>
</LayoutTemplate>
<ItemTemplate>
<div>
<asp:LinkButton
id="lnkSelect"
Text='<%# Eval("Name") %>'
CommandName="Select"
Runat="server" />
</div>
</ItemTemplate>
<SelectedItemTemplate>
<div id="selected">
<%# Eval("Name") %>
</div>
</SelectedItemTemplate>
</asp:ListView>
<br style="clear:both" /><br />
<asp:ListView
ID="lstProducts"
DataSourceId="srcProducts"
runat="server">
<LayoutTemplate>
<ol>
<asp:PlaceHolder
id="itemPlaceholder"
runat="server" />
</ol>
</LayoutTemplate>
<ItemTemplate>
<li><%# Eval("Title") %></li>
</ItemTemplate>
</asp:ListView>
<asp:SqlDataSource
id="srcProductCategory"
SelectCommand="SELECT Id, Name FROM ProductCategory"
ConnectionString='<%$ ConnectionStrings:con %>'
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
SelectCommand="SELECT Title FROM Product
WHERE CategoryId=@CategoryId"
ConnectionString='<%$ ConnectionStrings:Products %>'
Runat="server">
<SelectParameters>
<asp:ControlParameter
Name="CategoryId"
ControlID="lstProductCategories" />
</SelectParameters>
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
File: Web.config
<configuration>
<connectionStrings>
<add name="Products"
connectionString="Data Source=.\SQLEXPRESS;
AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
</connectionStrings>
</configuration>
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