how to add a click event for a asp.net text box control?

  I am using visual web developer2008 IDE to design web pages.  actually, I want to add an event handler in C# code class for a click event fired by a text box control in asp.net web form.
I know the way to add other events from preperty window. but there is not any onick event available for this control. Is that means that asp.net text box control doesn't have any onlick event just like HTML text box control?
regards
surrounded
 
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