01.<%@ Application Language="C#" %>
02.
03.<script runat="server">
04.
05. void Application_Start(Object sender, EventArgs e)
06. {
07.
08. Application["OnlineNow"] = 0;
09. }
10.
11. void Application_End(Object sender, EventArgs e)
12. {
13.
14. Application["OnlineNow"] = null;
15. }
16.
17. void Application_Error(Object sender, EventArgs e)
18. {
19.
20. }
21.
22. void Session_Start(Object sender, EventArgs e)
23. {
24.
25. Application.Lock();
26. Application["OnlineNow"] = (int)Application["OnlineNow"] + 1;
27. Application.UnLock();
28. }
29.
30. void Session_End(Object sender, EventArgs e)
31. {
32. Application.Lock();
33. Application["OnlineNow"] = (int)Application["OnlineNow"] - 1;
34. Application.UnLock();
35. }
36.
37.</script>
C#
ช่วยกันสนับสนุนรักษาเว็บไซต์ความรู้แห่งนี้ไว้ด้วยการสนับสนุน 
