Extend TextInput

Hi --
I am just beginning to migrate from ActionScript 2 to
Actionscript 3. I
would like to create a simple custom control with the
TextInput as the base
component and just a few custom properties of my own to help
me understand
how AS 3 works. I have started with this code:
package {
import fl.controls.TextInput;
public class MyTextInput extends TextInput {
public function MyTextInput() {
I have my document class set to MyTextInput and I have my
publish settings
set to AS 3 and I have "Export to SWC" checked.
When I try to publish my component I get two errors:
1017: The definition of the base class TextInput was not
found
5000: The class "MyTextInput" must subclass
"flash.display.MovieClip" since
it is linked to a library symbol of that type.
I am confused by the 5000 error as I have no items in the
library.
Any help would be appreciated.
Thanks
Rich

Hi --
I am transitioning from AS 2 to AS 3 -- my job is as an
Actionscript 2
programmer.
I figured out that by adding "$(AppConfig)/Component
Source/ActionScript
3.0/User Interface" to my class path I was able to get rid of
the first
error.
By creating a component in the library and having the base
class as the
default (MovieClip) I was able to get rid of the second
error. It confused
me because I assumed the base class should be what I was
extending -- in
this case the TextInput. However, by having that in my AS
file and having
the base class a MovieClip it works as expected.
Rich
"kglad" <[email protected]> wrote in message
news:g6v3b9$ols$[email protected]..
> you need a textinput component in your library, at a
minimum. but trying
> to create a component is not a good place to start
learning anything about
> actionscript.

Similar Messages

Focus in textInput

Hi all,
I have an extended textInput component.
How can I select all text (highlight) when user click on this component?
I try setFocus but it doesn't work.
override protected function focusInHandler(event:FocusEvent):void
                //Update component text real value (realValue is a number that comes from my DB.
                super.text = _realValue.toString();
                this.setFocus();
any ideas?
Thanks!

You want to do something like
    <fx:Script>
        <![CDATA[
            protected function textinput1_focusInHandler(event:FocusEvent):void
                super.focusInHandler(event);
                textinput1.selectAll();
        ]]>
    </fx:Script>
    <s:TextInput id="textinput1" text="focusIn test" focusIn="textinput1_focusInHandler(event)"/>
because the RichEditableText focusInHandler sets the selection based on a number of factors. If you always want everything selected you need to do it after this.

Customizing Spark TextInput

I am creating a custom TextInput item renderer:
package
    import spark.components.Grid;
    import spark.components.TextInput;
    import spark.components.gridClasses.GridColumn;
    import spark.components.gridClasses.IGridItemRenderer;
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When I run my code the renderer still has a border. What's wrong with my code?
Thanks

Works for me. Do you mean the grid lines? or the actual border of the TextInput? What happens if you set borderVisible to true?
A workaround would be to reskin the TextInput and remove the border.
-Kevin

How to exclude accent characters in Text components

How can I exclude accent characters in Text components. I
just want the keystroke do nothing for accent characters.

I assume you mean TextInput.
Easiest way? You may want to do something like this, it
restricts input to only the provided characters, so you'd have to
add any others that you DO want:
restrict="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Harder way? Extend TextInput (but it only stops `):

Item Renderer in ActionScript

I typed the devguide example on pp 719-720 into 2 separate
files: MyRenderer.as, test.mxml (both shown at end of post). IDE
gives the errors listed below. Any ideas? I thought the compiler
was smart enough to resolve the MyRenderer.CellField reference
using the xmlns="*" attribute of the mx:Application tag.
1120: Access of undefined property CellField. test.mxml
1172: Definition MyRenderer:CellField could not be found.
1120: Access of undefined property CellField. test.mxml
1120: Access of undefined property CellField. test.mxml
1120: Access of undefined property CellField. test.mxml
MyRenderer.as:
// ActionScript file
package MyRenderer {
import mx.controls.*;
import mx.core.*;
public class CellField extends TextInput
public function CellField() {
height=60;
width=80;
setStyle("borderStyle", "none");
editable=false;
override public function set data(value:Object):void {
super.data = value;
if (value != null) {
text = super.listData.text;
if (Number(super.listData.text) > 100) {
setStyle("backgroundColor", 0xff0000);
super.invalidateDisplayList();
test.mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
height="600" width="600" xmlns="*">
<mx:Script>
<![CDATA[
[Bindable]
public var mydp:Array =
{Monday: 12, Tuesday: 22, Wednesday: 452, Thursday: 90},
{Monday: 258, Tuesday: 22, Wednesday: 45, Thursday: 46},
{Monday: 4, Tuesday: 123, Wednesday: 50, Thursday: 95},
{Monday: 12, Tuesday: 52, Wednesday: 111, Thursday: 20},
{Monday: 22, Tuesday: 78, Wednesday: 4, Thursday: 51}
]]>
</mx:Script>
<mx:DataGrid id="myDatagrid" dataProvider="{mydp}"
variableRowHeight="true">
<mx:columns>
<mx:DataGridColumn dataField="Monday"
itemRenderer="MyRenderer.CellField"/>
<mx:DataGridColumn dataField="Tuesday"
itemRenderer="MyRenderer.CellField"/>
<mx:DataGridColumn dataField="Wednesday"
itemRenderer="MyRenderer.CellField"/>
<mx:DataGridColumn dataField="Thursday"
itemRenderer="MyRenderer.CellField"/>
</mx:columns>
</mx:DataGrid>
</mx:Application>

Hi,
I'm sorry to bug you with a non-technical discussion, but I
am a recruiter in San Diego. My client is in need of 3 Senior Flex
Developers for their project. I have had an extremely rough time
finding someone for this position. Would you be interested in this
position, or do you know of anyone that might be? We do pay
referral fees. This position may be open to telecommuting.
Job Description:
They are in the midst of a major re-architecting of their
Corporate Management system utilizing many cutting edge
technologies. As it relates to the position they are using Flex as
their UI.
This is either a contract, or a full-time position.
Pay: Market Rate
Thanks for your help!
Natalie Fay
Outsource Technical
www.ostechnical.com
[email protected]
858.874.5637

Dynamically add component question?

Hi:
Here is part of my code in short:
public class TextInputWithAutoComplete extends TextInput
private function addComp():void{
list = new List();
list.id = "autoCompleteList";
list.x = 0;
list.y = 20;
list.addEventListener(MouseEvent.MOUSE_UP, handleMouseDown);
parentDocument.addChild(autoCompleteList); OR addChild(autoCompleteList); //my question is here
private function handleMouseDown():void{
//TODO
I realized that if I do addChild, I can't really see the dynamically added component, since flex did not reserve space for my List to display. So I do parentDocument.addChild, and then the component appears no problem. My question is since it's being added in the parentDocument, so it is suppose to be a component belong to parentDocument, so is that component still be able to call this handleMouseDown?
From my experience, it's still able to, but which doesn't make sense to me.
Can someone explain a little about why it can still work, or any better approach other than parentDocument.addChild
Thanks.

In Flex there is a lifecycle that represents the contract between the component and its parent. See the chapters on creating custom components and the lifecycle methods createChildren, commitProperties, measure and updateDisplayList.
Some components size to content like Containers. When you add a child to a container it will measure the child and make room for it or add scrollbars if there isn't enough room.
If you add a child to TextInput, it doesn't expect additional children so it will not make room for it. You can subclass and override its measure and updateDisplayList methods to make room for an additional child.
I would not recommend adding another interactive control to an interactive control since that will make managing focus and accessibility much harder. It is better to group these in a container in most cases.
The reason the mouse handler still gets called is because a handler can be on any object whether it is a child or sibling or parent and will be called by the object dispatching the event if the handler is listening to that object. If you had attached the handler to "this" it would not get called when the List is not a child of "this".
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui

AddEventListener and Function with Parameters

Hello guys
I got this situation
nameTxt.addEventListener(FocusEvent.FOCUS_IN,formTextHandler);
         private function formTextHandler(text:String):void{
where i want to send some additional information too
so how could i do that?
Thanks

hi,
   it seems like you will need to extend your text Component and Event class as well. Its not clear from your code that what component you are referring to . so generally you will extend your required component .
you will need to addEvent Listener
FocusEvent.FOCUS_IN
in your custom extended component and in the handler of that focusEvent you will dispatch your new custom event with the parameters from this FocusEvent you received and as well as new parameters that are also required by your new extended Event.
Method of extending events is straight forward. e.g this a sample for extending Events you will need to modify it with the paramaters you require in your event .
package
    import flash.events.Event;
    public class AccountEvent extends Event
        public var accountObj:Object
        public static var NewAccount:String='newAccount'
        public function AccountEvent(type:String,newAccount:Object)
            super(type)
            this.accountObj=newAccount
and here is the code how to use this event
package
    import flash.events.Event;
    import flash.events.FocusEvent;
    import AccountEvent
    import mx.controls.TextInput
    public class customText extends TextInput
        public function customText()
            super();
            addEventListener(FocusEvent.FOCUS_IN,onFocus)
        private function onFocus(e:FocusEvent):void{
            dispatchEvent(new AccountEvent(paramaters.....///here you will add your custom paramerters and
           //you will catch this event in your main application rather then catching the focus in event

"Suggestive" validators (suggestors?)

Is there any way to do this? For example, I have a "signup"
type form (name, email, address, hobbies, etc.)... Certain fields
would be required and have their respective validators (name,
email, phone)... But other fields (hobbies, homepage, etc.), I
would like to recommend that the user fill them in before
submitting the info, but it's OK if they don't... Is there any type
of "suggestion validator" that can accomplish this, or do you just
have to handle all the logic yourself...??? Or can you actually
just do it with validators and I'm missing something obvious...???
Just wondering...

Istrasci,
There is nothing like a "sugestion validator" in Flex
framework. But as you said, you can validate those fields with your
own logic. I would sugest you create your own "sugestion validator"
class to use it in your project, sou it would be easier to handle.
Depending on what you plan to do, you cold extend TextInput and
create a flag, required or optional and create your own validator,
which would handle each Field acording to its flag.
(I personaly hate flex validators, i always create my own
lib).
I hope that my post was useful.
Regards,
Peter

Prototype / Extend a TextInput()

Hi --
I would like to add some functionality to a TextInput but I
am not yet
familiar with working with objects in AS 3. I do understand
object oriented
programming and I am familiar with prototyping in Javascript
but I'm not
sure of the exact syntax in Flash.
Ideally what I am looking to do is add a property INPUTMASK
which would
hold a string value and add code to the "on change" event of
the control.
Then I want to store this all as a package and create a new
control that I
can store and drop onto the stage to reuse.
If someone could explain to me how to get this started that
would be great.
If I create this control the way I hope I will be more than
happy to share
it with anyone who is interested in it.
Thanks
Rich

I use the airport utility. It finds the express and says that it has extended the network. However, later when I check the wireless options of the express, it is setup as a Create a Network.
"Create a wireless network" is the correct setting to extend the network when the AirPort is connected to the main router using a wired Ethernet connection.
"Extend a wireless network" would be the correct setting only if the AirPort Express is connected to the main router using wireless only, not Ethernet.

Would like a TextInput that extends FlowElement

I am writing a courseware application in Flex and find the Text Layout Framework very helpful, except that I have many cases where input fields must be within the flow, such as the following:
First there might be a question _________________ and ______________,
___________, then there might be another question __________________.
The input field does not need to be a RichTextEditor, it just needs to be able to move in the flow of the text so that format is maintained if a user increases the size of the text.
I have seen statements in this forum that that the TLF was not designed to be extensible, making this a difficult task. The only other solution that I can see is to put the text into RichText objects and the input fields into TextInput objects, and write a Format Controller that positions these on lines taking into account the ending position of each, and performing line breaks as needed. Does anyone have a better idea? The problem seems a little strange given the ease of doing this in HTML.
Gary

Thanks to Robin on the excellent find on Platus' solution.
Gary, i was wondering if an underline would be better than an underscore. Can you please share your thoughts on the better way to preserve the underline beneath the words that are typed? It should meet both these conditions:
When the blanks are typed on, the underline should be preserved beneath the typed characters.
When some typed content is deleted, the blanks should be preserved with underline.
My plan before reading this post was to create two separate sets of TLFs - one for the passage with blanks and another set of TLFs superimposed on top, positioned to align with the input blank spaces - similar to Platus' implementation. But now, i would try to directly enter content.
Another query is, how to display underlined blank spaces, without using underscores?
This is a <flow:span textDecoration="underline">red</flow:span> apple.
Would display: This is a red apple.
This is a <flow:span textDecoration="underline"> </flow:span> apple.
Would display: This is a apple.
Shiyaz

What class should I extend for this custom control?

The code below is my attempt at a mxml control to replace a custom context-menu that my app needs on certain textInput controls. Characters not on the keyboard are inserted into the text, replacing any selection, if applicable. Flex AIR apps (which I need for local access to SQLite) don't let me do custom contextmenus when the control is not top-level.
The custom component is encapsulated now in a Panel but I would like to have the composite control be nothing more than a textInput and a PopUpMenuButton right next to it. Is that possible—not to have a container? If so, what class should I extend, if creating this as an ActionScript component?
Thanks for the advice.
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="228" height="64" creationComplete="onInit();" >
    <mx:TextInput id="mytextinput"   height="20"></mx:TextInput>
    <mx:PopUpMenuButton id="mybutton" itemClick="onCharSelected(event);" x="159" y="-2" label="æ" width="41" />
    <mx:Script>
     <![CDATA[
         import mx.utils.StringUtil;
         import mx.events.MenuEvent;
         import mx.events.ItemClickEvent;
         import mx.controls.TextArea;
        import mx.controls.Alert;
        import flash.events.*;
        import flash.display.Sprite;
        import mx.collections.ArrayCollection;
            // use a point to track the selection-start and selection-end position for the text field
            private var pt:Point=new Point;
            private var chars:ArrayCollection = new ArrayCollection(
                [ {label:"ð", data : "ð"},
                  {label:"æ", data:"æ"},
                  {label:"þ", data:"þ"} ]);
                // track the selection positions as the mouse is moved or text is entered
              private function onMouseEvent(e:MouseEvent): void{
                  pt.x=this.mytextinput.selectionBeginIndex;
                  pt.y=this.mytextinput.selectionEndIndex;
              private function trackSelectionIndices(e: Event):void {
                 pt.x=this.mytextinput.selectionBeginIndex;
                  pt.y=this.mytextinput.selectionEndIndex;
            private function onInit():void {
                this.mytextinput.addEventListener(Event.CHANGE, trackSelectionIndices);
                this.mytextinput.addEventListener(MouseEvent.MOUSE_DOWN, onMouseEvent);
                this.mytextinput.addEventListener(MouseEvent.MOUSE_UP, onMouseEvent);
                this.mybutton.dataProvider = chars;
            private function onCharSelected(e:MenuEvent):void {
                doInsert( e.item.data.toString(), this.mytextinput);
        // insert the character chosen from the popup into the text field, replacing any selection, and then reset the insertion point
         private function doInsert(s:String, trgt:Object):void {
            var v:String = TextInput(trgt).text;
            var pre:String =v.substr(0,TextInput(trgt).selectionBeginIndex);
            var post:String=v.substr(TextInput(trgt).selectionEndIndex, v.length-TextInput(trgt).selectionEndIndex);
            var result:String = pre + s + post;
            TextInput(trgt).text=result;
            TextInput(trgt).setSelection(TextInput(trgt).selectionBeginIndex+s.length,TextInput(trgt) .selectionBeginIndex+s.length);
          ]]>
    </mx:Script>
</mx:Panel>

Wiping perspiration from my brow as I abandon the difficult approach.
Here is the simpler approach where HBox encapsulates the TextInput and PopUpMenuButton. I am trying to figure out how to let the TextInput keep its selection highlight when it loses focus to the PopupMenuButton: setSelection does not cause the repaint.
package Search
    import flash.events.*;
    import flash.geom.Point;
    import mx.collections.ArrayCollection;
    import mx.containers.HBox;
    import mx.controls.PopUpMenuButton;
    import mx.controls.TextInput;
    import mx.events.MenuEvent;
    public class UnicodeCharPopupMenu extends HBox
        public function UnicodeCharPopupMenu()        {
                    super();
                    Init();
        private var mytextinput:TextInput = new TextInput;
        private var mybutton:PopUpMenuButton = new PopUpMenuButton;
        private function Init():void {
            mytextinput.width=100;
            mytextinput.height=22;
            mybutton.width=44;
            this.width=200;
            this.height=20;
            visible=true;
           mybutton.addEventListener(FocusEvent.FOCUS_IN, onMenuGotFocus;
            mytextinput.addEventListener(Event.CHANGE, trackSelectionIndices);
            mytextinput.addEventListener(MouseEvent.MOUSE_DOWN, onMouseEvent);
            mytextinput.addEventListener(MouseEvent.MOUSE_UP, onMouseEvent);
            mybutton.addEventListener( MenuEvent.ITEM_CLICK, onCharSelected);
          //mybutton.addEventListener(MenuEvent.MENU_HIDE, onMenuHide);
            //mybutton.addEventListener(MenuEvent.MENU_SHOW, onMenuShow);
            mybutton.dataProvider = chars;
            addChild(mytextinput);
            addChild(mybutton);
        // use a point to track the selection-start and selection-end position for the text field
        private var pt:Point=new Point;
          private var chars:ArrayCollection = new ArrayCollection(
                [ {label:"ð", data : "ð"},
                  {label:"æ", data:"æ"},
                  {label:"þ", data:"þ"} ]);
      //button got focus, repaint selection highlight
        private function onMenuGotFocus(e:FocusEvent): void {
             mytextinput.setSelection(pt.x, pt.y);
        // nothing selected, menu closed
        private function onMenuHide(e:MenuEvent): void {
            if (e.item.data==null) {
                mytextinput.setFocus();
        private function onCharSelected(e:MenuEvent):void {
                doInsert( e.item.data.toString(), mytextinput);
       public function getText():String {
                return mytextinput.text;
            // track the selection positions as the mouse is moved or text is entered
             private function onMouseEvent(e:MouseEvent): void{
                 pt.x=mytextinput.selectionBeginIndex;
                 pt.y=mytextinput.selectionEndIndex;
             private function trackSelectionIndices(e: Event):void {
                pt.x=mytextinput.selectionBeginIndex;
                 pt.y=mytextinput.selectionEndIndex;
             private function doInsert(s:String, trgt:Object):void {
             var v:String = TextInput(trgt).text;
             var pre:String =v.substr(0,pt.x);
              var post:String=v.substr(pt.y, v.length-pt.y);
            var result:String = pre + s + post;
            TextInput(trgt).text=result;
            TextInput(trgt).setFocus();
            TextInput(trgt).setSelection(pt.x+s.length,pt.x+s.length);
            pt.x = pt.x + s.length;
            pt.y = pt.x;

How do I get Flash to recognize my TextInput from class?

Hi -
I'm trying to write a class for a standard input form. I've
got a movieclip in the library and have linked it to this class.
(class included below.)
This movieclip contains several text inputs which I have
declared in my class file. I can get their ._x and ._y values, but
I can't assign to the .text value of the TextInput. Nor can I read
this value when I set it in the parameters tab in flash. It just
comes up as undefined.
It's as though flash does not recognize the instance that was
placed on the stage in the authoring environement as a TextInput. I
can trace out the instance, but Flash does not treat it as a
TextInput because I can not assign a string to the .text property.
If I instantiate the TextInput in my class file and then
position it on the stage - I can assign to it. But this is not as
practical because I can not lay things out visually in Flash. How
do I get Flash to recognize my TextInput instance on the stage from
a class file?
Thanks in advance!
import mx.controls.TextInput;
import mini.slide.*;
class mini.slide.InfoCollect extends Slide{
var first:TextInput;
var testInput:TextInput;
var last:TextInput;
var email:TextInput;
var address:TextInput;
var city:TextInput;
var zip:TextInput;
var phone:TextInput;
function InfoCollect(){
trace("InfoCollect created");
this.first = new TextInput();
this.first.text = "testing";
trace("this.first = " + this.first.text);
}

Since you are putting the assignment and trace statements in
the Constructor function, it is possible that the textInput boxes
have not all yet loaded. So, when you are trying to assign values
to them, they are not present on the stage.
Put your code in an onLoad function. That way you can insure
that all components have loaded before you assign values to them.
The onLoad function will be called when the "onLoad" event is
triggered after all of your movieclip has loaded.
function onLoad() {
---your code here---
}

TextInput in List, is it a Bug?

Hi all,
I need to have a TextInput inside a List component because I want the user to be able to change the name of the list item while viewing it. The problem is that the spacebar doesn't get captured. In other words a TextInput in a list works fine untill you want a space in what ever you are typing.
Can anyone offer a suggestion on how to fix this or get around it?
Thanks
Here's the code I'm using.
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo">
    <s:List id="list" >
        <s:itemRenderer>
            <fx:Component>
                <s:ItemRenderer>
                    <s:states>
                        <s:State name="normal" />
                        <s:State name="hovered" />
                        <s:State name="selected" />
                    </s:states>
                    <s:TextInput id="nameLabel" text="{data.lastName}, {data.firstName}"/>
                </s:ItemRenderer>
            </fx:Component>
        </s:itemRenderer>
        <s:dataProvider>
            <s:ArrayList>
                <fx:Object firstName="Ann" lastName="Green" />
                <fx:Object firstName="Tom" lastName="Smith" />
                <fx:Object firstName="John" lastName="Black" />
                <fx:Object firstName="Jane" lastName="White" />
                <fx:Object firstName="Bill" lastName="Jones" />
            </s:ArrayList>
        </s:dataProvider>
    </s:List>
</s:WindowedApplication>

Update,
If I create my own list that extends the SDK's list and if I override the findKey function so it looks like this:
override protected function findKey(eventCode:int) : Boolean
            var tmpCode:int = eventCode;
            return tmpCode >= 32 &&
               tmpCode <= 126 &&
               findString(String.fromCharCode(tmpCode));
instead of this:
override protected function findKey(eventCode:int) : Boolean
            var tmpCode:int = eventCode;
            return tmpCode >= 33 &&
               tmpCode <= 126 &&
               findString(String.fromCharCode(tmpCode));
Then using the space bar in the text input in the list works.

How Do I Change TextInput Font?

Hi,
I am using Adobe Flash CS5 and Action Script 3, but I am struggling to do something really simple (which means I am looking in the wrong place probably), I have 5 TextInput fields, I have added to the stage via the 'Components' option, but after discovering how to change the colour of the fields, I now want to change the font which appears when you type directly into the fields when the Flash movie is playing, however I can't seems to find this function.
I found a tutorial which mentioned going to the properties panel and then clicking 'Character, then 'Embed Font', but this maybe in CS4?
Any help would be great!

Thanks for your very quick reply kglad, I have followed the steps you outlined, my components instance name is 'ti', the font class is 'Harper', do I place this code within the timeline under actions or in the class I generated through the library, called Harper.as?
It is just I keep getting an error of 'access to undefined property ti' and also 'TextFormat is not compile-time-constant'.
Here is my class instance of Harper.as:
package {
import flash.text.Font;
public class Harper extends Font {
public function Harper() {
var tfor:TextFormat = new TextFormat();
var f:Font = new Harper(); // F is your font class name - see below
tfor.font = f.fontName;
tfor.color = 0xFF0000;
tfor.size = 18;
ti.setStyle("embedFonts",true)
ti.setStyle("textFormat", tfor);
// constructor code
Many Thanks

TextInput with a Watermark?

I've been really trying to move away from .NET into the flex
world. With .NET there is a AJAX control for placing a text
watermark on a textbox. This simply gives a sample for the
textinput. Example would be a login form with a username textinput
that says "User Name", but when the user clicks on the box, that
text disappears.
I know how do create this effect with events, but is there
already a control that does this, or do I need to extend the
textinput control to add this functionality?
Any thoughts? Don't want to reinvent the wheel because I
don't know all the lingo.

There is no control that has built in support for this, but
you can do it in MXML without extending the control:
<mx:TextInput id="ti1" text="User Name"
focusIn="ti1.text=''"/>
hth,
matt horn
flex docs

Extend TextInput

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