You have to keep an old copy of the text, watch for keyDown of BACKSPACE, then fix up the text on the CHANGE event.
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of khan.ibraheem Sent: Thursday, April 24, 2008 11:27 PM To: [email protected] Subject: [flexcoders] Re: Newbie question: Removing text from textarea/disabling a character Thanks for your reply. #1: Actually I wanted to disable backspace and this cannot be done with restrict. Any other method you would like to suggest ? --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "wesley.petrowski" <[EMAIL PROTECTED]> wrote: > > For #1, you can use the restrict property of TextArea. It should do > exactly what you need. > > http://livedocs.adobe.com/flex/3/langref/mx/controls/TextArea.html#res <http://livedocs.adobe.com/flex/3/langref/mx/controls/TextArea.html#res> > trict > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "valdhor" <stevedepp@> wrote: > > > > For 1 you would probably have to add an event listener for keydown, > > see what key it was and then stop that keycode from reaching the > textarea. > > > > For 2, check out the following I found in the Help: > > > > <?xml version="1.0"?> > > <!-- textcontrols/TextRangeExample.mxml --> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> "> > > <mx:Script><![CDATA[ > > import mx.controls.textClasses.TextRange > > > > private function resetText():void > > { > > textArea1.text = "This is a test of the emergency broadcast > > system. It is only a test."; > > } > > > > public function alterText():void > > { > > // Create a TextRange object starting with "the" and ending > at > > the > > // first period. Replace it with new formatted HTML text. > > var textRange1:TextRange = new TextRange( > > textArea1, false, textArea1.text.indexOf("the", 0), > > textArea1.text.indexOf(".", 0) > > ); > > textRange1.htmlText="<i>italic HTML text</i>" > > > > // Create a TextRange object with the remaining text. > > // Select the text and change its formatting. > > var textRange2:TextRange = new TextRange( > > textArea1, true, textArea1.text.indexOf("It", 0), > > textArea1.text.length-1 > > ); > > textRange2.color=0xFF00FF; > > textRange2.fontSize=18; > > textRange2.fontStyle = "italic"; // any other value turns > > italic off > > textRange2.fontWeight = "bold"; // any other value turns > bold off > > textArea1.setSelection(0, 0); > > } > > ]]></mx:Script> > > > > <mx:TextArea id="textArea1" fontSize="12" fontWeight="bold" > > width="100%" height="100"> > > <mx:text> > > This is a test of the emergency broadcast system. It is > only a > > test. > > </mx:text> > > </mx:TextArea> > > <mx:HBox> > > <mx:Button label="Alter Text" click="alterText();"/> > > <mx:Button label="Reset" click="resetText();"/> > > </mx:HBox> > > </mx:Application> > > > > > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "khan.ibraheem" <khan.ibraheem@> > > wrote: > > > > > > Hello, > > > > > > I am using a textarea. I want to achieve 2 tasks: > > > > > > 1) Disable a particular character i.e. let suppose I dont want to > > > allow a certain character being shown(when it is typed) in the > text > > area. > > > > > > 2) How can I remove some portion of the text from the textarea. I > have > > > tried slice method but it hasnt worked. > > > > > > Looking for help. > > > > > > Thanks. > > > > > >
