1 using System;
 2  using System.Collections.Generic;
 3  using System.ComponentModel;
 4  using System.Linq;
 5 using System.Text;
 6 using System.Web;
 7 using System.Web.UI;
 8 using System.Web.UI.WebControls;
 9 using System.Collections.Specialized;
10 
11 namespace ControlLibrary
12 {
13     [DefaultProperty("Text")]
14     [ToolboxData("<{0}:ControlLifecycle runat=server></{0}:ControlLifecycle>")]
15     public class ControlLifecycle : WebControl,IPostBackDataHandler,IPostBackEventHandler
16     {
17         protected override void OnInit(EventArgs e)
18         {
19             //输出
20             OutPut("1.OnInit");
21             base.OnInit(e);
22             //注册
23             this.Page.RegisterRequiresPostBack(this);
24         }
25 
26         protected override void LoadViewState(object savedState)
27         {
28             OutPut("2.LoadViewState");
29             base.LoadViewState(savedState);
30 
31         }
32 
33         public virtual bool LoadPostData(string postDataKey, NameValueCollection postCollection)
34         {
35 
36             OutPut("3.LoadPostData");
37             return true;
38         }
39 
40         protected override void OnLoad(EventArgs e)
41         {
42             OutPut("4.OnLoad");
43             base.OnLoad(e);
44         }
45 
46         public virtual void RaisePostDataChangedEvent()
47         {
48             OutPut("5. RaisePostDataChangedEvent");
49         }
50 
51         public virtual void RaisePostBackEvent(string eventArgument)
52         {
53             OutPut("6. RaisePostBackEvent");
54         }
55 
56         private void OutPut(string strText)
57         {
58             if (this.DesignMode == false)
59             {
60                 HttpContext.Current.Response.Write(strText + "<br>");
61             }
62         }
63 
64         protected override void OnPreRender(EventArgs e)
65         {
66             OutPut("7. OnPreRender");
67             base.OnPreRender(e);
68         }
69 
70         protected override object SaveViewState()
71         {
72             OutPut("8. SaveViewState");
73             base.SaveViewState();
74             return new Pair();
75         }
76 
77         protected override void Render(HtmlTextWriter writer)
78         {
79             writer.Write("<INPUT type=button name=\"{0}\" value=\"Click Me!\" style='position:absolute; left: 20; top: 280px' οnclick=\"{1}\">", this.UniqueID, Page.ClientScript.GetPostBackEventReference(this, ""));
80             OutPut("9. Render");
81             base.Render(writer);
82         }
83    
84     }
85 }
86