September 12th, 2009 
Marvin Blase This one's showing how to redefine the ENTER-key in textfields to prevent it from breaking lines.
Actionscript:
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textfield.addEventListener(KeyboardEvent.KEY_UP, keyHandler);
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private function keyHandler(event:KeyboardEvent):void {
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if(event.type == KeyboardEvent.KEY_UP && event.keyCode == Keyboard.ENTER) {
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event.target.text = event.target.text.replace("\r", "");
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}
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}
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