Setting width of textarea to text being entered in Flex 2

Question

如何将文本区域的宽度设置为在Flex中输入的文本的长度？

Answer 1

here we may calculate the width of the text area dynamically on basis of font size of the text as follows

protected function onChange(event:TextOperationEvent):void
{

if(textBox.width <textBox.text.length*5)
textBox.width = textBox.text.length*5;
}
<s:TextArea id="textBox" height="200" width="200" fontSize="25" change="onChange(event)" />