I have a dynamic Actionscript class as follows: public dynamic class Foo {....} In my code I (may) add some properties to it: myFoo["myNewDynamicProp"] = "bar"; Elsewhere in my code, given an instance of class Foo, how can I determine if that dynamic property has been added already without throwing an expensive exception?
View 4 Replies
I am using a regular Flash object as a simple data container, and I want to remove a particular property of that object. Then that object gets passed on to a for..in loop. But even after using delete to remove the property, the key still shows up in the loop.
For example:
var obj:Object = { a: "a", b: "b", c: "c" }
delete obj['b'];
for ( var prop:String in obj ) {
[Code].....
So deleting the property seems to be the same as assigning its value to null.
Is there any way to immediately remove the property from the object altogether so that it is no longer looped over in a for..in loop?
It is not sufficient to check the property for a null value since a property with a null value is not the same as not having the property in the first place, and represents a different state. I don't want to set the property to null, I want to remove the property.
I have an object
obj = { a: 1, b: { c: 1, g: x, h: { j: {k: z} } } };
if I have an array of dynamic length ["a", "b", [...], "g" ]
How can I now update a.b.c.g ? example:
function set($target, $new_value, $array){
//magic
}
set(obj, y, ['b', 'g']);
[code]....
well in my game,while you are playing level you have 3 objects(movieclips) on which you can click to pass on the next frame(when comes 3 new objects etc. untill level is complete); 2 of that 3 objects are wrong, and only 1 is good for passing on next frame. (all of all, correct click, wrong clicks)when i come on that level it keeps me showing error in output:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at TestYourLogic_fla::MainTimeline/goodplus();
Code: Select allfunction goodplus (event:Event):void {
goodcount ++;
goodText.text = (goodcount.toString());//<----debugger is showing error here
}
i gave instance name on my dynamic text as goodText, and it is on every frame.
My problem is to find out the object which owned my property... for example:
My Class :
public class MyClass{
var myGroup:Group; //Spark Component
.....
}
Now, I add my Group to another UIComponent. Next step in Class XYZ I wan't to get my MyClass Object ... but I can only see the var myGroup
public class XYZ {
...
public function getObject(group:Group):MyClass {
return group.????;
}
...
}
[code]...
The labels text will be "Property", but if object.property is changed, the label isn't updated. Is there any way around this?
<mx:Canvas id="maincanvas" backgroundColor="7000" width="100%" height="100%">
<mx:TextArea backgroundAlpha="0"/>
</mx:Canvas>
However if I try creating a new textarea object via:
var textarea:TextArea = new TextArea ();
textarea.backgroundAlpha = 0;
maincanvas.addChild(textarea);
flex throws the error :
1119: Access of possibly undefined property backgroundAlpha through a reference with static type mx.controls:TextArea.
I have this situation where i'm trying to save "chat logs" while people switch around views in my flex mobile application..so, my plan is i'm starting out with a main object that I plan to re-use as the main chat log object..I call it textObjso, when someone new wants to chat my plan is to make a new object with the persons username.so how if i were to get the username from something like data.username how could I translate that into the var name of the object I want to make? So in the end i end up with.[code]
View 2 RepliesI am trying to:
1) create a dynamic property
2) bind that property to a label
This works great for "sealed properties", but for dynamic properties there doesn't appear to be any event triggered. Are dynamic properties implicityly not bindable?
var myObj:MyType = new MyType(); // MyType is dynamic
myObj["myDynamicPropertyName"] = "initialized";
BindingUtils.bindProperty(myLabel, "data", myObj, repeatedLabel.name);
// myLabel now displays "initialized"
myObj["myDynamicPropertyName"] = "changed";
// myLabel still displays "initialized", it should say "changed" !!!
I'm trying to convert an MXML component to an ActionScript Class. The component consists of a Form with a TextInput, TextArea, and two buttons - Save and Cancel, and a Validator for the TextInput, and other logic to handle events that occur. This component is currently extended by several other components. Now, in the MXML component binding the TextInput text property to a property in an Object was very easy:
<mx:TextInput text="{_itemToEdit.name}" />
But in ActionScript, I'm creating the TextInput and setting the text property before the Object is set, and the TextInput is not being updated:
public var itemToEdit:Object = {};
private var nameInput:TextInput = new TextInput();
public function MyClass() {
nameInput.text = itemToEdit.name;
}
How can I make sure that the TextInput text property is bound to the specified property in the Object?
I am working in air application , i need to know how to add event listener when any object is updated,how can i implement this.Example:i have Class name Vehicle, and child class are Car,Bus,Bikes,Scooter,..etc, child class also have many properties like color,model no,....etc
I have array collection and AddChild() method in Vehicle class by this, i will add, child class to the vehicle class.I need a event listener which can trigger if any of the property is updated or changed in any of the child class property, how can i implements this in Flex3.
I'm trying to assemble a header object for an api request. One of the headers is 'Content-Type'. The hyphen is causing a compile error. Flex is giving me:
1050 - Cannot assign to a non-reference value.
I find it spiteful that they enjoy the use of a hyphen in the error message while I hang my head and come here for answers.
I have a dynamic class that I have created
public dynamic class SiteZoneFileUploadVO
{
public var destination:String = "sitezone";[code]...........
when I try to iterate over this object's property names it only iterates the dynamically added properties.
parameters.dynVar= "value";
for(var name:String in parameters)
{
Even though the object has all the properties equal to a value (ive checked this in the debugger) the only property name that will be traced is dynVar.How can I iterate over all the property names and not just the dynamically added ones?
I need to create variable object property names for use with the data grid component.
This works: data = new Object(); data.some_name = "the data";
But this does not: data = new Object(); colName = "some_name"; data[colName] = "the data";
I have a PresentationModel AS class that holds all the values used in SomeView.mxml. The entire class for the model is bindable, and the model property in the view is also bindable. However, I am unable to inject the model into the view using the PropertyInjector tag:
- INFO: Data binding will not be able to detect assignments to model
MainEventMap.mxml
<EventHandlers type="{FlexEvent.INITIALIZE}">[code].....
I try to do preloder in Flex for my project written in Flash. I make this with the help of this site link text My Flash project have next source in main class called Game
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUp);
private function keyDown(event:KeyboardEvent) {
[Code]....
Flex application work but Flash application does not react to button presses
how I can make preloader and work buttons together
I've got an object that contains a dozen or so fields I want to bind to form elements, so that I can use that object to send the data back to the server to be saved.
[Code]...
I am using shared object to share data between two users. First user connect to shared object and set some value in shared object. Please consider that second user has not connected with the shared object yet.Now when second user connects to the server and try to get that property set by first user, he could get shared object but could not get properties of Shared object set by first user. I observed few times that Second user can get these properties within "Sync" event between two users. But I would like to get these values for Second user in any stage (i.e. in load event etc.). Whenever Second user tries to get the property of Shared object, the object will reset the actual property value and then return reset value.
1) Is there any way to get all the properties of shared object before sync event called, as I want to get it immediately when second user connect to the application and perform next task based on the values stored in shared object.
2) Is it possible for second user to check whether any property has been set by first user? So that second user can use the property instead of reset it.
I am building a AS3 only project and got runtime error that said "Cannot access a property or method of a null object reference."
Here is my code:
main.as
public class videoMain extends Sprite{
private var videoPlayer:Player;
public function videoMain (){
[code]....
TypeError: Error #1009: Cannot access a property or method of a null object reference have a mxml file that has actionscript inside of it, I'm trying to call a function in a button outside of this actionscript in the same mxml file. I'm calling the public function cancel(); like this click="cancel();" but i'm getting an error 1009 that I can't access a property or method of a null object reference
Code:
<?xml version="1.0" encoding="utf-8"?>
<mx:HBox
[code].....
I changed my html template to include flashvars like so:
if (hasRequestedVersion) {
// if we've detected an acceptable version
// embed the Flash Content SWF when all tests are passed
[code]...
And I am trying to access them in my app like so:private static var _PID:uint = Application.application.parameters.product_id;
But I am getting this error:
Error #1009: Cannot access a property or method of a null object reference.
I am trying to use a button in my init() method.
<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" title="Test"
creationComplete="init()">
Now when I try to do something with my button I get the error mentioned. I am assuming maybe it has not loaded yet?
[Code]....
I have a flex application which use DragManager.When I'm loading this application into flash application and trying to use drag'n'drop functions - I get an error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.managers::CursorManagerImpl/showCurrentCursor()
at mx.managers::CursorManagerImpl/setCursor()
at mx.managers.dragClasses::DragProxy/showFeedback()
at mx.managers.dragClasses::DragProxy/mouseMoveHandler()
But, when I simply run a flex application (not loding it into a flash one) everything works properly.
I have called this flash code in Flex using SWF loader . I got the following Error. Here I have attached flash coding for header_text_fla Kindly do the needful.
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at header_text_fla::MainTimeline/loaderComplete()
var myEvent:Event;
var myParams:LoaderInfo;
[code]....
On GridItem object there's a colIndex and on GridRow a rowIndex. But both are declared internal so I do not have acces on that information.
Is there another way to get the position of an object in a grid.
In order to send a POST request I need to enumerate all properties of a given object. This object may or may not be dynamic. I'm looking for the most elegant solution. This is what I've got so far:
[Code]...
I have a general Flash question. I have got 2 .SWF wrappers (Playbook and Android,that work perfectly) that takes any .SWF file and wraps it up as an application. I'm hoping to make 1 application and have it run on both the Blackberry Playbook and any Android device.Technically everything is perfect but the problem I am having is with the layout.For example if an object is placed at x= 512 y=400 then it looks great on the Playbook but that looks horrible on an Android screen thats not 1024x800px. What I want to be able to do is something like (x=DeviceWidth/2), (y= DeviceHeight/2) so that it resizes and repositions itself automatically. An example of where I need to change the code is shown belowbt1.tween("_y", 400, 0.5, "easeOutBack");
View 1 RepliesIt's too complicate to explain but I'll give you an example
I have an AS3 ResultEvent Object and this object has several propeties which can be accessed by this like:event.result.name or event.result.age and, I have this String variable: eventProperty:String that contains "name" or "age" How do I access to event.result. with the variable?
I'm new to flex and actionscript. I'm trying to create a small flex app that has multiple states, but if I have nested containers, it looks like some of the objects are not getting initialized when I expected them to be, even when I have the creationPolicy set to "all."I've reduced the issue to a small example, with a commented block showing when it does work.sing the existing code, I get this error: "TypeError: Error #1009: Cannot access a property or method of a null object reference at main/init()" and the event handlers are not installed.If I instead use the commented block, which has the Panel and VBox elements removed, it does work.I know I could add a click attribute to the mxml elements, but this is just a simplified example, and I'm more interested knowing why the objects are not initialized when the app loads.
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
applicationComplete="init();"
[code].....
I have an object which is assigned a number of properties:
var project_array:Array = [];
var slideObject:Object = {
project_title : myXML.projects.project[i].title.toUpperCase(),
[Code].....
but I'm not quite sure where to place this. If I place it outside of the object constructor, I get "term is undefined", I guess because it doesn't know what project_clips_array is - but if I declare project_clips_array in the constructor, it appears to need to be defined, i.e. I can't create a blank property. But I can't place it in the constructor either, because it doesn't seem to allow me to run a function within an object constructor. What is the proper syntax or arrangement of code for executing this function to get the array within the object?
