Comments on: Preventing line feeds in a TextArea control in Flex

By: peterd

peterd — Wed, 20 Aug 2008 03:57:51 +0000

manovotny, The code is a bit rough, but does the following work for you?

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function textArea_textInput(evt:TextEvent):void {
                if (evt.text == "\\n") {
                    evt.preventDefault();
                }
            }
            private function textArea_change(evt:Event):void {
                textArea.text = textArea.text.replace(/\\n|\\r/ig, "");
            }
        ]]>
    </mx:Script>

    <mx:TextArea id="textArea"
            text="The quick brown fox jumped over the lazy dog."
            verticalScrollPolicy="on"
            width="100%"
            height="100%"
            textInput="textArea_textInput(event);"
            change="textArea_change(event);" />

</mx:Application>

Peter

By: manovotny

manovotny — Tue, 19 Aug 2008 19:59:55 +0000

PEFRECT! This solves half of my problem… Care to share if you have a way to prevent someone from doing a copy/paste of text with line feeds in it? Solve that and I’ll be home free!

By: çin, cin

çin, cin — Tue, 29 Jul 2008 16:27:40 +0000

Can arrow keys disable? I do not know how to do this.

By: Learning Everthing

Learning Everthing — Fri, 25 Apr 2008 06:55:03 +0000

How can I disable backspace, left arrow and right arrow keys ?

By: manish sankhe

manish sankhe — Fri, 21 Mar 2008 06:12:58 +0000

hi dis is manish workin in teknopoint multimedia thanks for givin the source of this code…i was trying to disable the enter key by using ifocus manager bt everythin invain..ur code help me out in dis thanks….

By: jexchan

jexchan — Sat, 08 Mar 2008 06:42:12 +0000

Hi,Peter deHaan

Thanks for your great post!

I have a another question about this.

I use TextArea component in flex, trigger “Ctrl + Enter” event to newline(use this to send messege in my project), but more empty newline in IE(it’s ok in Firefox or trigger ‘Shift+Enter’),how can i solve this problem?

Thank you very much!!!

Code like below

if(evt.ctrlKey == true && evt.keyCode == Keyboard.ENTER) {
……
}