A simple “autoresizable” textarea component – mx:textarea
Posted on February 13, 2010 | No Comments
The TextArea component doesn’t resize itself automatically. this simple example shows you how to do it, 🙂
<?xml version="1.0" encoding="utf-8"?>
<mx:TextArea xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<![CDATA[
private var _autoSize : Boolean = true;
[Inspectable(defaultValue="true", variable = "autoSize", type = "Boolean", name = "autoSize", format = "Boolean")]
public function set autoSize(value : Boolean) : void
{
_autoSize = value;
invalidateSize();
}
public function get autoSize() : Boolean
{
return _autoSize;
}
override protected function measure() : void
{
super.measure();
if (_autoSize)
{
var lineHeight : uint = 6;
for (var i : int = 0; i < this.mx_internal::getTextField().numLines; i++)
{
lineHeight += this.mx_internal::getTextField().getLineMetrics(i).height;
}
this.measuredHeight = lineHeight;
this.verticalScrollPolicy = "off";
}
}
]]>
</mx:Script>
</mx:TextArea>
Author
By Sameera Thilakasiri
,is a front-end developer based in Colombo, is a blogger and a lifestyle photographer.
Follow him Twitter and Google+. Check out him.
Comments
Leave a Reply
You must be logged in to post a comment.
Community presentations of the blogger
Sameera at LinkedIn
BIOGRAPHY
Sameera Thilakasiri is a front-end developer and UX Architect based in Colombo, Sri Lanka, specialist in User Interface Design, User Experience, Usability and Accessibility, Information Architecture, Responsive Web Design, Interactive Design, Search Engine Optimization, Trainging and Public Speaking.
In his profession, follow the best practices, W3C web standards and guidelines, responsive, semantic, usable, accessible, SEO friendly to cutting edge cording using XHTML/HTML5, CSS and jQuery for Pixel-perfect cross browser compatibility.
In his leisure blogging for technical articles and lifestyle photographer.