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<%@ Control Language="C#" %>
<script runat="server">
[TemplateContainer(typeof(MyTemplateContainer))]
[PersistenceMode(PersistenceMode .InnerProperty)]
public ITemplate 内容 { get; set; }
[TemplateContainer(typeof(MyTemplateContainer))]
[PersistenceMode(PersistenceMode.InnerProperty)]
public ITemplate 广告 { get; set; }
public class MyTemplateContainer : Control, INamingContainer
{
public MyTemplateContainer(string ID)
{
this.ID = ID;
}
}
protected override void CreateChildControls()
{
base.CreateChildControls();
this.PlaceHolder1.Controls.Clear();
if (this.内容 != null)
{
MyTemplateContainer c = new MyTemplateContainer("content1");
this.内容.InstantiateIn(c);
this.PlaceHolder1.Controls.Add(c);
};
this.PlaceHolder2.Controls.Clear();
if (this.广告 != null)
{
MyTemplateContainer c = new MyTemplateContainer("content2");
this.广告.InstantiateIn(c);
this.PlaceHolder2.Controls.Add(c);
}
}
</script>
<table width="100%">
<tr>
<td>
内容:<br />
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
</td>
<td>
<asp:PlaceHolder ID="PlaceHolder2" runat="server"></asp:PlaceHolder>
</td>
</tr>
</table>