iPhone: Pass a value to a method called via @selector()
<p>I want to pass a variable to he buttonEvent method in the selector.</p>

<p>[button addTarget:messageTableViewController action:@selector(buttonEvent)  forControlEvents:UIControlEventTouchUpInside]; </p>

<p>How does one do this, say if the variable is uid?</p>

<p>the method signature is 
-(void)buttonEvent:(NString *)uid;</p>
