文章出处：http://asp.net/ajax/documentation/live/tutorials/TimerControlTutorials.aspx
Introduction
The topics in this section provide examples of using the Timer control on an ASP.NET Web page to refresh content in the page at scheduled intervals.
In This Section
- Introduction to the Timer Control
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Provides a tutorial for using the Timer control with the UpdatePanel control.
- Using the Timer Control with Multiple UpdatePanel Controls
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Provides an example of using the Timer control with multiple UpdatePanel controls.
