TextField, restrict, maxChars

/**
 * Copyright hacker_yk666qry ( http://wonderfl.net/user/hacker_yk666qry )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/dGcX
 */

package 
{
	import flash.display.Sprite;
	import flash.text.*;
	import flash.events.*;	
	/**
	 * ...
	 * @author ...
	 */
	public class MyTextField extends Sprite {
		private var tf:TextField;
		private var tf2:TextField;
		public function MyTextField() {
			//入力テキストフィールド
			tf = new TextField();
			tf.type = TextFieldType.INPUT;
			//入力可能な文字
			tf.restrict = "_./0-9a-zA-Z村";
			//入力可能な文字数
			tf.maxChars = 20;
			tf.x = 100;
			tf.y = 100;
			tf.width = 200;
			tf.height = 24;
			tf.border = true;
			addChild(tf);
			
			//カウントテキストフィールド
			tf2 = new TextField();
			tf2.x = 150;
			tf2.y = 80;
			tf2.width = 100;
			tf2.height = 20;
			tf2.autoSize = TextFieldAutoSize.LEFT;
			//tf2.text = "入力可能な文字数はあと " + tf.maxChars.toString();　
			addChild(tf2);
			
			tf.addEventListener(Event.ENTER_FRAME, changeHandler);
		}
		
		public function changeHandler(e:Event):void {
			tf2.text = "入力可能な文字数はあと " + ( tf.maxChars - tf.length ).toString();
		}
		
		
	}
	
}