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<%@ Page Language="C#" %>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
if (TreeView1.CheckedNodes.Count > 0)
{
Label1.Text = "We are sending you information on:<p>";
foreach (TreeNode node in TreeView1.CheckedNodes)
{
Label1.Text += node.Text + " " + node.Parent.Text + "<br>";
}
}
else
{
Label1.Text = "You didn't select anything. Sorry!";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Latest Hardware</title>
</head>
<body>
<form id="Form1" runat="server">
Please select the items you are interested in:
<p>
<asp:TreeView ID="TreeView1"
Runat="server"
Font-Underline="False"
DataSourceID="XmlDataSource1"
ShowCheckBoxes="Leaf">
<DataBindings>
<asp:TreeNodeBinding DataMember="Hardware"
Text="Computer Hardware" />
<asp:TreeNodeBinding DataMember="Item" TextField="Category" />
<asp:TreeNodeBinding DataMember="Option" TextField="Choice" />
</DataBindings>
</asp:TreeView>
<p>
<asp:Button ID="Button1"
Runat="server"
Text="Submit Choices"
OnClick="Button1_Click" />
</p>
<asp:XmlDataSource ID="XmlDataSource1"
Runat="server"
DataFile="Data.xml">
</asp:XmlDataSource>
</p>
<asp:Label ID="Label1" Runat="Server" />
</form>
</body>
</html>
File: Data.xml
<?xml version="1.0" encoding="utf-8"?>
<Hardware>
<Item Category="A">
<Option Choice="A1" />
<Option Choice="A2" />
</Item>
<Item Category="B">
<Option Choice="B1" />
<Option Choice="B2" />
<Option Choice="B3" />
</Item>
</Hardware>
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