改进后的Hello.cs
using System;using System.Web.UI;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace BLL
{
public partial class Hello : System.Web.UI.Control
{ /**//*在BLL层右键Add---〉CustomControl会自动产生下面的一个构造器 * 和一个OnPaint方法---〉怀疑和using System.Windows.Forms;有关
*/ //public Hello() //{ // InitializeComponent(); //} //protected override void OnPaint(PaintEventArgs pe) //{ // // TODO: Add custom paint code here // // Calling the base class OnPaint // base.OnPaint(pe); //} string MyName = ""; public string Name { get { return MyName; } set { MyName = value; } } protected override void Render(HtmlTextWriter writer) { //base.Render(writer); writer.Write("<h1>Hello,"+Name+"</h1>"); } }
}<%@ Page Language="C#" AutoEventWireup="true" CodeFile="hello.aspx.cs" Inherits="hello" %><%@ Register TagPrefix="win" Namespace="BLL" Assembly="HelloControl" %><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>CustomControl Page</title></head><body> <form id="form1" runat="server"> <!-- <%@ Register TagPrefix="win" Namespace="BLL" Assembly="HelloControl" %> 该指令不需要TagName因为对于自定义控件来说:控件的类名就是它的TagName 因为public partial class Hello : System.Web.UI.Control所以控件的类名 Hello就是这里的TagName 而Namespace和Assembly是一定要有的，这里Assembly="HelloControl"是因为: csc /t:library /out:HelloControl.dll hello.cs --> <!-- 这里<win:Hello 控件的行为完全由BLL层中的Hello.cs决定 与本aspx和aspx.cs完全无关 --> <!-- 如果机器较慢 智能感知可能不会很及时地反应出Name属性来--> <win:Hello ID="cutomControl1" Name="Jeff" runat="server"></win:Hello> </form></body></html>