flash on 2009-8-13

/**
 * Copyright matsu ( http://wonderfl.net/user/matsu )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/5ooW
 */

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
	<mx:Script>
		<![CDATA[
			private var tempStr:String;
			private function bTextInputChange():void
			{
				var byteArray:ByteArray = new ByteArray();
				byteArray.writeMultiByte(bTextInput.text, "shift_jis");
				var bTextInputLength:int = byteArray.length;
				if ( bTextInputLength > 20 ) {
					bTextInput.text = tempStr;
				} else {
					tempStr = bTextInput.text;
				}
			}
		]]>
	</mx:Script>
	<mx:Text text="入力制限チェック"/>
	<mx:TextInput id="bTextInput" styleName="bTextInput" width="200" height="21"  change="bTextInputChange();" enter="bTextInputChange();"/>
</mx:Application>