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Changing Flex3 ScrollBar maxScrollPosition at runtime

7 May 2008 18:16, Posted by Jon

A quick tip if you have a dynamic scroll bar and want to bind it’s maxScrollPosition to a value at runtime unfortunately you can’t use the MXML binding, i.e. maxScrollPosition={value}.

Alternatively you need to set the value programatically in an event handler, AND importantly call updateDisplayList() on the scrollbar. i.e.

 
		<!--[CDATA[
			private function handleSlideChange():void {
				scroll.maxScrollPosition = slider.value;
				scroll.invalidateDisplayList();
			}
		]]-->

Go Tripod Ltd is a UK-based development company working with some of the most exciting software technologies around. Simon Ashley, Jon Baker and Colin Ramsay are the brains behind projects such as Stubmatic, and are developing bespoke web, mobile and desktop software for clients with household names. We believe in good service as well as good software, and we’re eager to work with people who feel the same.

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Changing Flex3 ScrollBar maxScrollPosition at runtime

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