基于模版的简单控件<%@ Page language= c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="WebApp3.WebForm1" %><%@ Register TagPrefix= NameSpace="WebApp3" Assembly="WebApp3" %>

" Runat=server>

.csprivate void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 if(!this.Page.IsPostBack) DataBind(); }
控件代码：
using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Drawing;using System.Web;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;
namespace WebApp3{ ///

/// MyTemplateC 的摘要说明。 ///

[ParseChildren(true)] public class MyTemplateC: Control,INamingContainer { private ITemplate itemPlate; [TemplateContainer(typeof(MyTemplateC))]//指定当前控件类型 public ITemplate ItemTemplate { get{return itemPlate;} set{itemPlate=value;} }
private string text; public string Text { get{return text;} set{text=value;} }
protected override void OnDataBinding(EventArgs e) { this.EnsureChildControls();//确定是否包含子控件,否则创建 base.OnDataBinding (e); }
protected override void CreateChildControls() { if(itemPlate!=null) { itemPlate.InstantiateIn(this);//当由类实现时,创建子控件对象 } else { this.Controls.Add(new LiteralControl(" NO TEMPLATE")); } } }}

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