代码
1using System; 2using System.ComponentModel; 3using System.Web.UI; 4using System.Web.UI.HtmlControls; 5 6namespace PowerAsp.NET.Comtrols 7{ 8 /**//// <summary> 9 /// 10 /// </summary> 11 public class WebTimer2:Component 12 { 13 public WebTimer2() 14 { 15 } 16 17 private int _interval = 5000; 18 private bool _enable = false,_isHooked = false; 19 private WebTimer _timerControl = null; 20 private Page _page = null; 21 22 [DefaultValue(null)] 23 public Page _Page 24 { 25 get 26 { 27 return _page; 28 } 29 set 30 { 31 _page = value; 32 } 33 } 34 [ 35 CategoryAttribute("Layout"), 36 DefaultValueAttribute(5000), 37 BindableAttribute(false), 38 DescriptionAttribute("") 39 ] 40 public int Interval 41 { 42 get 43 { 44 return _interval; 45 } 46 set 47 { 48 _interval = value; 49 } 50 51 } 52 [ 53 CategoryAttribute("Layout"), 54 DefaultValueAttribute(false), 55 BindableAttribute(false), 56 DescriptionAttribute("") 57 ] 58 public bool Enabled 59 { 60 get 61 { 62 return _enable; 63 } 64 set 65 { 66 _enable = value; 67 if(_enable && !_isHooked) 68 HookPageLoad(); 69 } 70 } 71 [CategoryAttribute("Action")] 72 public event EventHandler Timer 73 { 74 add 75 { 76 if(_timerControl == null) 77 _timerControl = new WebTimer(); 78 _timerControl.Timer += value; 79 } 80 remove 81 { 82 if(_timerControl != null ) 83 { 84 _timerControl.Timer -= value; 85 } 86 } 87 } 88 private void HookedPageLoad(object sender,EventArgs args) 89 { 90 if(_timerControl == null) 91 _timerControl = new WebTimer(); 92 _timerControl.Interval = _interval; 93 _timerControl.Enabled = _enable; 94 if(_enable && _page != null) 95 { 96 foreach(Control c in _page.Controls) 97 { 98 if(c is HtmlForm) 99 {100 c.Controls.Add(_timerControl);101 }102 }103 }104105 }106 private void HookPageLoad()107 {108 if(_page != null)109 {110 _page.Load += new EventHandler(HookedPageLoad);111 _isHooked = true;112 }113 }114 }115}116Wrapper WebTimer模式
转载于:https://www.cnblogs.com/nanshouyong326/archive/2006/12/15/593303.html
相关资源：数据结构—成绩单生成器
