示例
下面的示例演示一个模板化用户控件和一个包含该控件的页面。该用户控件创建一个可在宿主页上声明为 的模板。该模板控件还公开两个可由宿主页在模板内访问的属性：Index 和 Message。
第一个示例显示模板化用户控件。第二个示例显示包含该用户控件的页面。
<%@ Control language="C#" ClassName="TemplatedUC" %>
<script runat=server>
private ITemplate messageTemplate = null;
[ TemplateContainer(typeof(MessageContainer)) ]
public ITemplate MessageTemplate {
get
{
return messageTemplate;
}
set
{
messageTemplate = value;
}
}
void Page_Init() {
if (messageTemplate != null) {
String[] fruits = {"apple", "orange", "banana", "pineapple" };
for (int i=0; i<4; i++)
{
MessageContainer container = new MessageContainer(i, fruits[i]);
messageTemplate.InstantiateIn(container);
PlaceHolder1.Controls.Add(container);
}
}
}
public class MessageContainer: Control, INamingContainer {
private int m_index;
private String m_message;
internal MessageContainer(int index, String message)
{
m_index = index;
m_message = message;
}
public int Index {
get
{
return m_index;
}
}
public String Message
{
get
{
return m_message;
}
}
}
</script>
<asp:placeholder runat=server id="PlaceHolder1" />
<%@ Page Language="C#" %>
<%@ Register TagPrefix="uc" tagname="TemplateTest"
Src="TemplatedUC.ascx" %>
<html>
<script runat=server>
protected void Page_Load()
{
DataBind();
}
</script>
<head>
<title>Templated User Control Test</title>
</head>
<body>
<h1>Testing Templated User Control</h1>
<form id="Form1" runat=server>
<uc:TemplateTest runat=server>
<MessageTemplate>
Index: <asp:Label runat="server" ID="Label1"
Text='<%# Container.Index %>' />
<br />
Message: <asp:Label runat="server" ID="Label2"
Text='<%# Container.Message %>' />
<hr />
</MessageTemplate>
</uc:TemplateTest>
</form>
</body>
</html>
<script runat=server>
private ITemplate messageTemplate = null;
[ TemplateContainer(typeof(MessageContainer)) ]
public ITemplate MessageTemplate {
get
{
return messageTemplate;
}
set
{
messageTemplate = value;
}
}
void Page_Init() {
if (messageTemplate != null) {
String[] fruits = {"apple", "orange", "banana", "pineapple" };
for (int i=0; i<4; i++)
{
MessageContainer container = new MessageContainer(i, fruits[i]);
messageTemplate.InstantiateIn(container);
PlaceHolder1.Controls.Add(container);
}
}
}
public class MessageContainer: Control, INamingContainer {
private int m_index;
private String m_message;
internal MessageContainer(int index, String message)
{
m_index = index;
m_message = message;
}
public int Index {
get
{
return m_index;
}
}
public String Message
{
get
{
return m_message;
}
}
}
</script>
<asp:placeholder runat=server id="PlaceHolder1" />
<%@ Page Language="C#" %>
<%@ Register TagPrefix="uc" tagname="TemplateTest"
Src="TemplatedUC.ascx" %>
<html>
<script runat=server>
protected void Page_Load()
{
DataBind();
}
</script>
<head>
<title>Templated User Control Test</title>
</head>
<body>
<h1>Testing Templated User Control</h1>
<form id="Form1" runat=server>
<uc:TemplateTest runat=server>
<MessageTemplate>
Index: <asp:Label runat="server" ID="Label1"
Text='<%# Container.Index %>' />
<br />
Message: <asp:Label runat="server" ID="Label2"
Text='<%# Container.Message %>' />
<hr />
</MessageTemplate>
</uc:TemplateTest>
</form>
</body>
</html>
