Flex :: Catch A ComboBoxes Value Before Change With A Change Event?

Feb 3, 2010

I am displaying a combo box in something of a WYSIWYG preview. I want the user to be able to click on the combo box and see the options inside, but I don't want them to be able to change the value. I tried using preventDefault() on the change event but it doesn't work. I don't want to disable it because I do want the user to be able to "look inside" the dropdown.

So I'm trying to block the change, but can't. My next resort is to change the selected index back to what it was before the change, Is there any way to do this within the scope of a ListEvent.CHANGE event listener?

Current Workaround is to basically re-assign the controls selected item the same way I am defining the selected item when I originally build it (a default selection). So a user sees their change then it immediately changes back to the default selection.

View 1 Replies


Similar Posts:


Actionscript 3 :: Dynamically Change Comboboxes Value Based On Other Combobox In Flash

Jun 1, 2010

I have one xml file like below

<tree>
<branch1><node1/><node2/><node3/><branch1>
<brach2><node1/><node2/><node3/><branch1>

[code].....

View 1 Replies

Flex Visual Change Event

Oct 10, 2009

Is there not an event that occurs only when there has been some sort of visual change to an object. So for example if it were a video or animated object it would be firing as often as EnterFrame. However, if it were some sort of input control just sitting there doing nothing visually, then the event wouldn't fire until the visual state changed as a result of some sort of user input for example.

View 3 Replies

Flex :: Get Old Text From Change Event?

May 25, 2010

What was the change in the textfield? I would want to compare the old text with the new text.the problem is, that I have multiple textAreas in a tab-editor, and all the textAreas are watched by one eventListener. I want to get a value calculated by the next formula[code]...

View 3 Replies

Flex :: Listening For Viewstack Change Event?

Jan 28, 2010

I have a piece of software I'm working on that is using a viewstack with 3 canvases. With the change event I need to look for index 2 which is the last canvas when it changes to this canvas I need it to grab data from inputs from the previous two canvases.Within the viewstack events I've assigned the function change() to the event childIndexChange.

Here is the method:
private function change():void
{

[code].....

View 1 Replies

Actionscript 3 :: Flex Text Change Event?

Apr 8, 2010

I'm tracking how fast does the text of a textArea change. If it changes faster than 500 ms then i don't want to do anything, but if it doesn't change in 500 ms, i want to call a method.I tried like this:

public function textchangeListener(e : Event):void
{
if(((new Date).getTime() - changeTime)>500)[code].....

This method is the event handler for text change.But the problem is, if it changes only under 500 ms and after that it doesn't change, then my method won't be called. I make this for a better performance, so the prepareText() is called only when the user stops typing for 500 ms.

View 3 Replies

Flex :: Cancel A Change Event On A Tree?

Jun 30, 2010

I have a Tree component that's used as a navigation menu between different 'pages'. When the user clicks a certain option in the menu, I switch the 'page' by switching between State components in my application. The thing is that when the user indeed clicks an option in the menu, I want to perform a validation of some of the information in a certain component. If the validation fails, I show an alert, and I'd like to prevent the navigation to the other page. One part of this is simply not changing the currentState of the document, but the tree component still goes on with the change event, and the result is page A still being shown on the screen, whereas the selected option in the tree is page B (to which the user wanted to navigate, but failed since some of the information wasn't valid).

I tried to figure out how I can cancel the change event on the tree component itself. The thoughts I had didn't quite fit nicely:

I searched for a slightly different event (such as 'changing' or 'startChange') on which I can call the stopPropagation() method (since the regular 'change' event is not cancelable), but none exists for the Tree component.

I also thought about always saving the current option that's selected in the Tree component by myself, and when the validation fails, I will set the Tree's selectedItem to that saved option. That's also ugly because such an action will raise another change event on the Tree, thus another change to the States components, and another population of the page in which I'm already at. That's something I really don't want to do.

I also though about using a different component, such as Menu (and I also found an implementation of a vertical Menu), but that doesn't even seem to help. The same problem will exist there.

There must be a best-practice for preventing a change process to commit!

View 3 Replies

Flex :: Components Property Change Event

Sep 28, 2010

I have a custom component on which I have bound an array collection to one of its proeprties: <comp:MyComp id="comp" prop="{images}" /> images is an arraycollection In the components' code I would like to know which event to listen on everytime images updates props. I tried a setter on props but the setter only gets called once when props is first set. I tried the collection event but I get "Update" events sent on top of 'add' and 'remove' events and I would rather not have to manage those. So is there an event(flex or otherwise) that is fired every time a component property is updated by a bindable property?

View 1 Replies

Flex :: Manually Dispatch A Collection Change Event?

Mar 14, 2011

I have a standard combobox that dispatches a collection event when the dataprovider finishes initializing:

my_cb.addEventListener( CollectionEvent.COLLECTION_CHANGE, getMyStuff );

Then I have a custom component that also has a dataProvider. How do I get it to dispatch a collection change event when its dataprovider finishes loading?From what I've read, I can't do it. Will dispatching a propertychangeevent work?

UPDATE:I have a custom component that I call 'SortingComboBox' but it is not a ComboBox at all; it extends Button and I set is dataProvider property to my arraycollection, model.product (which is an arraycollection). how I use the dataProvider in that component:

code

[Bindable]
private var _dataProvider : Object;
public function get dataProvider() : Object
{[code]..........

In the createChildren() method of this component, I use this:

BindingUtils.bindProperty(dropDown, "dataProvider", this, "dataProvider");

The dropDown is a custom VBox that I use to display labels.

View 5 Replies

Actionscript 3 :: Bindable Property Change Event In Flex?

Sep 20, 2011

I've got a component called Box.as that has following two properties, and have their getters & setters defined:

private var _busy:Boolean;
private var _errorMessage:String;

In MXML that uses this component I define it like this:

<components:Box skinClass="skins.components.BoxSkin"
busy="{presenter.boxBusy}"
errorMessage="{presenter.boxErrorMessage}"/>

Where presenter variable is defined here in MXML and a Presenter class has boxBusy and boxErrorMessage variables defined as bindable property change events:

[Bindable(event="propertyChange")]
function get boxBusy():Boolean;
function set boxBusy(value:Boolean):void;

[Code]....

PROBLEM is that whenever I change boxErrorMessage for the presenter, I see the affect in MXML but nothing happens at all when I change boxBusy. Is there something extra I need to do with boolean variable?

View 1 Replies

Flex :: 3 - Adobe 3 List Control Selection And Change Event

Nov 22, 2009

I created a list control at runtime as following:

[Code]....

//Where myDataArray is an ArrayCollection consisting of my Custom ValueObjects. When i execute the code it displays my list with custom item renderer, which is fine. But when bring my mouse over it, it doesn't give any colour highlight which means it is not selecting. Secondly, when i click on any of the list item, it doesn't dispatch any change event. I tried a lot but couldn't understand it.

View 1 Replies

Flex :: Dynamically Change Fusion Chart Value With Slider Event

Jun 4, 2010

I am having a set of slider for each bar in the graph. I have bindded all the sliders with their corresponding bars. When i change the value of slider the value in the ArrayCollection changes and i have also used

[Code]...

View 1 Replies

Flex :: Add An EventListener To A MoiveClips/Sprites's ScaleX Change Event?

Jun 5, 2010

How can i trigger an event for the scaleX property change of the movieClip or Sprite in Flash AS 3.

View 1 Replies

Flex :: Catch 'a Href' Event?

Dec 6, 2010

I'm loading data from TextFlow to spark:TextArea. In TextFlow i have 'a href' elements. Problem lies with the address of the 'link' elements. Some of them will go outside of the page (these i will leave without doing anything), other will go to other subpages in my site(these one i have to catch and process in code).[code]...

View 3 Replies

Flex :: DataGrid Editing Cells In Same Row Not Firing Collection Change Event

Mar 20, 2010

I am using the flex datagrid to allow the user to edit some data. My update process relies on a CollectionEvent of type update. Basically I catch this event package the values and update the database. However, if the user edits a cell then moves to edit a cell in the same row the value is updated but a collection event is not fired. Only when clicking out of the row the event is fired. Has anyone had experience with this. I have heard the datagrid is a little quirky is this one of those quirks or am I doing this all wrong?

View 1 Replies

Flex :: Catch The Event Of Image Loading Completed?

Oct 24, 2010

Core of my code is following:

var img:Image = new Image;
img.source = 'http://..........';
img.autoLoad = true;

[Code]....

I found that, the complete event does not occur for some images. How can I catch complete event without signal leaks?

View 1 Replies

Flex :: Change Component On State Change?

Mar 8, 2010

I've got a whole bunch of data being displayed in different Labels, now I'm adding an edit state. I'd like all the labels to "transform" into TextInputs. I was just wondering if it possible to uses states to change

View 1 Replies

Flex :: Campture The Text Change Event Of A Text Control To Call A Function?

Dec 5, 2010

I am very new to flex and have trouble capturing the text change event of my text control:

<mx:Text id="description"
text=""
textAlign="center"

[code].....

View 2 Replies

Flex :: Changing Dataprovider Of A Datagrid On Change Event Of Another Datagrid?

Oct 15, 2011

I have two datagrids:

- Division
- Members

Both have single columns. Selecting one item from Divsions datagrid should display members of that Division in the Members datagrid. But following code has some problem and Members of a particular division do not show up when respective Divsion is clicked.

Following are some snippets of the related code. Hope someone can spot an error in it.

[Code]..

View 2 Replies

ActionScript 3.0 :: Event Dispatcher - Catch The Event And Trace Some Phrase?

Jun 20, 2010

I'm programming a little tank game (Check the attachment). The main class for tank is game.serovkonstantin.tanks.Tank.as and there are also 2 subclasses for now: Abrams and T90 which extend Tank. In my game.serovkonstantin folder I have a custom event (TankEvent), and the only event type inside of it which is TANK_INACTIVE.

I've added an event listener for MouseEvent.CLICK to each of the tank instances (inside Tank.as) which works just fine. When I add any of the tank instance onto the stage and click it, it traces the tank's name just like I wanted whether it's Abrams or T-90 depending on what tank I clicked. But the problem is that when I click a tank I also want it to dispatch my TankEvent.TANK_INACTIVE. The main stage has a listener for this event, so I expected it to catch the event and trace some phrase, but nothing happens I don't know whether it doesn't dispatch my event or doesn't catch it.

========
if you're interested why I need to dispatch this event, well,I suppose it will help my game know what tank to move when I click somewhere on the stage, and what tank(s) should be inactive,event it they all of the same type. I mean if I click one of the tanks it accepts all the controls while the other should be inactive

View 21 Replies

Change A Boolean With A Keyboard Event?

Jul 5, 2009

ok so i am trying to change a boolean with a keyboard event

my code is this:

Code:
stage.addEventListener(KeyboardEvent.KEY_UP, keyPressed);
function keyPressed(evt:KeyboardEvent):void {
if (evt.keyCode==Keyboard.SPACE) {
if (!gamePaused) {

[Code]......

View 1 Replies

ActionScript 3.0 :: Array Change Event?

Dec 2, 2008

1. Create Array of Items.2. Add or Delete i.e. push or pop items on Array .3. Update the datagrid with updated Array bottom line need to write and event listener on array . ihave seen this package available in flex but not in flash.

View 7 Replies

ActionScript 3.0 :: Change An Event Target's Name?

Mar 22, 2009

Can I change an event target's name? or it's an only-read property? I've been googling it but to no avail... For example, say this is my button code:

[Code]...

if trace the event target's name, you get buttonOne. But what I need to do is have the event's target's name to become buttonOne1. because I already have a button with the instance name. That's my setup, not the way I would do it OF COURSE, but this is the way the unique file is setup for my aunt, to have two set of buttons that calls the same image...(not the thumbnail issue I had before)... so the Question: is there a way to add a letter or remove a letter from the event target's name? You know how you can add a letter to the beginning of an array like buttonsArray.unshift(newButton)....can you do the same thing with an event.target.name?

View 3 Replies

ActionScript 3.0 :: SWFAddress Change Event?

Apr 22, 2010

I've added the swfaddress library to my class for the changing of my website sections. I see the site in the browser but nothing change.I've debugged this class and i've seen that flash goes into the addressChange function but the fact is that nothing change in the browser address.Here the code:

Code:
package
{

[code].....

View 2 Replies

Actionscript 3 :: SWFAddress CHANGE Event Isn't Dispatched?

Sep 22, 2010

I've successfully integrated SWFAddress deep linking on a site I'm working on. However I'm having a problem whereby SWFAddress CHANGE event isn't dispatched when you click an anchor tag in the htmlText of a textField. The browsers address bar is successfully updated, just no CHANGE event.

View 1 Replies

ActionScript 3 :: Change Variable On Mouse Event

Aug 30, 2011

I'm trying to change the variable that's set to 0 into 1 on a mouse event. I have 3 movie clips 'maskedbgmc' and when clicked its supposed to change a variable. But it doesn't change the variable as far as i can see.

var checkCard1:Number = 0;
maskedbg_mc.addEventListener(MouseEvent.MOUSE_DOWN, cardChecked1);
function cardChecked1 (event:MouseEvent):void {
checkCard1 = 1;
} var checkCard2:Number = 0;
[Code] .....

View 3 Replies

ActionScript 3.0 :: Combobox Change Event Isn't Fired

Feb 12, 2009

I've got this weird problem with Flash in a embed browser in an ASP.NET Windows Application. I've got this Flash Movie that runs in the Windows application and has got a couple of comboboxes. I've added an eventlistener to such a box, but his change event isn't triggerd on some computers. When I click on the combobox it opens up, but when I click on an item in the combobox it closes before he could trigger the change event.

The weird part is that this occurs on some computers, on others it works as it should. And when I load the swf directly in the browser the comboboxes work all the time. So it has something to do with the Windows Application and Flash. All the tested computers have the Flash plugin version 9 and higher (needed for my movie) installed.

View 0 Replies

ActionScript 3.0 :: Event Listener For Variable Change?

Aug 2, 2009

I was wondering if there was a way of tracking a variable change? Perhaps using some sort of event listener for it?

View 2 Replies

ActionScript 3.0 :: MovieClips To Change On Sound_Complete Event?

Sep 19, 2011

I have a playlist menu made up of movie clips acting as buttons, one clip for each track from a CD. The user clicks on a button, a corresponding sound clip plays and the movie clip button the user selected switches from frame 1 to frame 2 to change color while the sound is playing to show which track is currently playing.

Using an array to store the music tracks (named "Track 01" to "Track 08") and a "switch" command, my user is currently able to select and listen to a given track. My current problems lie with presentation.

I am having two problems with this project:

1. If the user allows the track to play through to the end, I need a single function to be fired on the SOUND_COMPLETE event (and I have applied the appropriate listener to my sound channel) which will reset the button to frame 1, as a visual indicator that the track has stopped. I have been unable to come up with such a function as yet.

Currently, the selected button just stays yellow (frame 2) instead of turning white (frame 1), and the user has to click twice (instead of once) to make the track play again.

2. My playlist includes a "play all" function to play all the tracks through in sequence as laid out in an array. While the track sequence plays fine, I would like to have the corresponding button for each track jump to frame 2 while that track is playing, then back to frame 1 when the track stops.

View 0 Replies

Actionscript 2.0 :: Change Event In Waving Code?

Apr 16, 2010

I want to change the event.i want to make movie clip when it touch the water make event waving .

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved