In my flex app I have a public bindable property.I want it so that every time the value of that property changes, a function gets triggered. I tried using ChangeWatchers, but it seems those only apply to built-in components like a text box change.i would like to do that same behavior with a property that changes at runtime.
View 4 Replies
I have a class like this. Property "isPag" is based on filed "ecboardid", I found that when ecboardid is changed, UI controls seem not be able to detect that "isPag" is also changed. So, how to make a property like this bindable?[code]...
View 3 RepliesI have Class1 with a read-only bindable property called age:
public class Class1 {
private var _age:int;
[Bindable(event="ageChanged"]
[Code]....
Of course the [Bindable] tag there doesn't make sense. But how can I achieve the same effect?
I believe I can dispatch some sort of ageChanged event from Class2 up to Class1 and then have an event handler in Class1 dispatch another local ageChanged event to which I bind Class2's age property.
I would like to put an eventListener on an ArrayCollection's length proprety, but I don't know how to go about this.
I want to do this because I only want code to execute when a certain number of things are in a certain ArrayCollection. I want Flex to wait to execute this code over the next object until that length property drops back to an acceptable level. I think I should do this with events instead of a while loop that sits there spouting NOOPs forever (which I don't know how to do either).
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?
I have inherited an Adobe AIR application, and am attempting to debug it through Flash Builder 4.5. Within Flash Builder, when I look at one of the MXML files, I see warnings for each use of the [Bindable] tag:[code]And there are no missing semi-colons on the lines preceding each warning as per the suggestion in this blog post.The project is configured to use Flex SDK 3.6.Additionally the file will not load in the designer, with this warning:Design mode: Error during component layout. Choose Design > Refresh to refresh design mode.At runtime I am seeing a blank window - which I assume is the result of the bindings not being triggered. Is this tag not available in Flex SDK 3.6?
View 1 RepliesI have the following code:
<fx:Script>
<![CDATA[
import shared.GlobalsManager;
[code].....
If I create an object like so:
class Foo {
[Bindable] public var property: String;
}
The class Foo has an implicit event dispatcher to handle property change events. How can I access that without making Foo explicitly extend EventDispatcher?
I have a small question. I am probably misunderstanding something, but when I do :
[Code]....
My Combobox is not alway updating when I update the ArrayCollection.[code]...
the first time it updates the combobox fine and sometimes it works the 2nd, 3rd, etc time is might update the combo box. After it stops updating the combobox, it never does until I restart the app. I have verified that the ArrayCollection is updated via the debug data, it is just the combobox is not updating the display.
I have a Number variable, named isConflict, whose value is passed in from a parent. I would like to put a ChangeWatcher on this item so that a function named changeBGColor will run whenever the value is changed. Within my creationComplete function of init, i have the following:
var isConflictWatch:ChangeWatcher = BindingUtils.bindSetter(changeBGColor, this, "isConflictChain");
I am just just curious as to whether the [Bindable] metadata tag in ActionScript 3 can only be used within the Flex framework, or can it be used in "regular" ActionScript projects where Flex isn't used?
View 1 RepliesIs it possible to use the Bindable compiler setting when using mxml?
I've got a string that I want to make bindable:
<mx:String id="myString">My Text</mx:String>
I could make it bindable in Actionscript, like this:
[Code]...
But it threw a lot of warnings-- other classes were already marked bindable in my App.
When I set a breakpoint and debug my application, Flash Builder 4 is not displaying static variables within the variables window. I'm using flash builder 4 to execute flex unit tests on one of my AS3 classes. I set a static variable within the [Before] function, which is accessed in each of the tests. I've set a breakpoint within one of the tests to see why it is failing, but I notice that static variables don't appear when I expand the 'this' object within the variables window. (In this case my static variable is the only variable associated with the class, so the only object in the variables window is the "this" object). How to make static variables appear in the variables window?
View 2 RepliesActionScript allows you to mark a variable as [Bindable], causing any changes to that variable to have immediate effect all over your application.How would you implement this feature in your favourite programming language?
View 1 RepliesI'm studying a demo code and it seems to me that an instance of a class is never instantiated, in particular I have this line:
[Code]....
I have a situation where I need to update a DropDownList's dataProvider and selectedItem in a specific order. See the following code ...
<s:DropDownList id="dropDownList"
dataProvider="{someDataProvider}"
selectedItem="{someSelectedItem}" />
In my case, some user interaction produces new values for the bindable variables "someDataProvider", and "someSelectedItem". However, when flex renders the DropDownList, the control's selected value is empty.
The reason for this is that the DropDownList's "selectedItem" property gets bound before the "dataProvider" property. The "dataProvider" needs to be bound first for "selectedItem" to be valid, this is because the new "selectedItem" points into the new "dataProvider".
what is the best practice for updating bindable properties in a specific order? I've come up with a few ways (e.g. using a valueCommit handler), but I wanted to see what the community had to say.
I am unable to bind the selectedIndex public property of a spark DropDownList to it's original source in the view's presentation model.
For the purposes of replicating this issue with as few lines as possible I have two views, and one presentation model. The code follows.
Main.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
[code]...
Debugging the application I find that selectedIndex in the presentation model always remains at the default value assigned regardless of which item I selected from the DropDownList. For the sample code above this is -1.How can I bind the selectedIndex in the presentation model such that it is updated appropriately when the selected item DropDownList changes?
I have a class called which is called ChartInfo,and it has a getter and setter methods as:
[Code]....
It will always give error like: 1195: Attempted access of inaccessible method isShowingPower through a reference with static type components.charting:ChartInfo.
Is there a way to find out when someone is watching to the swf? For example i have a swf loader but it preloades all swf behind each other [swf]-[swf]-[swf]
I can slide between each [swf] but the swf contains animations, they start playing when he preloads the [swf]'s. Is there a way i know when someone is watching the swf and then start the animation?
My first solution was a onmouse but it doesn't work when you don't have your mouse on the [swf].
Setting the text property of a flex DateField makes the selectedDate property of that DateField go to null.I need to set the text property so that I can use a particular format (DD-MMM-YYYY).
View 2 RepliesLately i discovered MATE (for Flex development) and was wondering: how do i bind a property in a view (actually a navigatorcontent component) to another property in a class so that they stay in synchronization (meaning that whenever the property in the class changes the property in the view also changes).
So if we have a view called Target.mxml and a property targertProp how do we bind it to the class called SourceClass with property SourceProp?
Can we put [Bindable] on functions/methods? I know that bindable is used to change the value of the source property to destination property. But not sure if we can use that for methods. why we cannot put/ if we can then what will be the outcome?
View 1 RepliesI'm trying to load an swf game, and then repeatedly run a check to see if the game has ended by accessing one of it's variables. Reading the forums and searching the web has gotten me this far:
[Code].....
"testing" appears on the output window so I know it's being loaded correctly, the game is also playing correctly. When I run the game in debug mode, it shows that the variable _level2.LOCAL exists and has a value, but the main loop just keeps kicking out "undefined."
How can I get my preloader to look at the size of individual clips?I have taken the percentage preloader code from this site and simply added the instance name of the clip I want to preload, but it doensn't work?
bytes_loaded = Math.round<b>(_root.images.</b>getBytesLoaded());
bytes_total = Math.round<b>(_root.images.</b>getBytesTotal());
getPercent = bytes_loaded/bytes_total;
[code]......
how can I find that on server side which user is watching a stream
View 2 RepliesI'm using a regular flash video player to play rtmp streams hosted on a cdn. Does anyone know if it is possible to get a count of the number of users watching a stream, through actionscript or flash?
View 1 RepliesI'm currently working on a portfolio site, which, among other things, loads external swf files into the stage. The problem starts when I load a 400x300 swf file into the stage, which is 900x800. The result is that I get all objects which are outside the stage area in the loaded swf, on my main stage. I tried everything from changing the width and the height to loading it into a movieclip. It's always the same, I get all the elements from outside the stage of the loaded swf (if I try to change the width/height, the objects outside the scene still remain) This is the code I'm using to load the external AS2 swf:
[Code]...
I'm wondering if there is a way I can bind a flex property to flash property?, the flash property is inside a swc file created in flash with the Flex Component Kit for Flash Professional, I can manipulate the flash component as a regular flex component, but I want to bind their properties, is there a way?
View 1 RepliesI've got a page laid out that houses a nightly live webstream of music at a venue. Every night (except Sunday) the stream turns on from 8pm-2am Eastern Standard Time. Some nights, I notice there is nobody watching the stream, yet the stream plays everyday no matter what. In the interest of saving bandwidth per month, I'm trying to figure out how to only stream if somebody is watching.So basically the camera would be recording locally, and when someone connects to the website something tells the server to start broadcasting. If the person leaves, the server stops broadcasting. Has anyone ever tried doing this? I'm using Influxis for my media streaming and they've assured me I can execute server side scripts.
View 12 Replies
