How can I determine if a child is present or not in a movieClip?
I'm trying to set up a conditional to determine whether or not a specified child object is present and if so, remove it. I'm having trouble finding relevant documentation on this.
With this code, I need to determine if the xml child is null and form a conditional statement upon that info.I have it very close but something is just "un-tweeked" enough that it wont work correctly.AS3 and XML provided below...
Code:
var url = txtBox_mc.getTix.url;
var request:URLRequest = new URLRequest(url);
txtBox_mc.getTix.addEventListener(MouseEvent.CLICK, GetUrTix);[code].....
The problem now only the " if (url == null) { " is read, thus returning those results. I believe the issue is within the definition of url " var url = txtBox_mc.getTix.url; "...
sometimes I remove child and trace it afterwards and it outputs null although I havent yet set it to null, why is that? and do I need to set it to null also in that case?
Code:
trace(holderArr[loadedThumbs].getChildByName("photo_bg"));
//[object MovieClip]
holderArr[loadedThumbs].removeChild(holderArr[loadedThumbs].getChildByName("photo_bg"));
[Code]....
I have an Movie Clip in Flash that have subobject of button type which has subobject of input text and movie clips. Right after creation core Moveclip all subobject are set to null, when I expect them to be valid objects.
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MC_Core_design was created in Flash and exported to Actionscript. I've done this for button_1 class aswell. The code was written using Flex. When I comment out both lines that result in error I get correct view of the core Movie clip with all subobject. How can I set subobject properties right after object creation?
a quick low down would be its a gallery on the second frame and I breaks when coming back tot he first frame, all tweens die and such.
the errors are:
TypeError: Error #2007: Parameter child must be non-null.
at flash.display:isplayObjectContainer/removeChild()
at index_779_fla::MainTimeline/imageLoaded()
[code]....
I have an event driven flash program. I need to be able to call removeChild() if and only if an object is a child. getChildByName() and most other functions don't seem to allow for this and if you call removeChild() on an object that isn't a child it will throw an error. I suppose an option may be to catch the thrown error and just ignore it, but that seems like a bad solution.
View 2 RepliesHow can I get the X, Y, and rotation values, relative to the stage of a child of unknown number of parents?What I am doing is: I have a 'stick' object, that creates a child 'stick', that creates a child 'stick', etc a random number of times.The end stick then creates a leaf. Each new stick rotates a little bit randomly.As a result when my leaf falls off the final stick it flies off in a strange direction.How can I get the leaf to fall down (eg y++ relative to stage)?Alternatively I thought I could dispatch an event that has a leaf created at the stage level but then I really need to know what the X and Y co-ordinates of my final stick is realtive to the stage.
View 0 RepliesLet's say I have a canvas with a fixed height and a vertical scroll bar. And the canvas has 10 children in a vertical line (like a VBox) whose combined height exceeds the height of the canvas. Based on the scroll bar position, only some of the children will be visible at a time.Is it possible to determine which children are actually visible? Or whether or not a specific child is visible on screen?
View 1 Replies[code]...
and I dont mean this: (which removes the parent)
I've having a problem when I am removing a child. There is an area where you can choose a button to click(there are multiple buttons here). Once you click a button it loads workss_mc and you can go back from there and workss_mc is being removed then work_mc is being added again. The problem is once it is added again and you click on any of the other buttons the frame label from the previous session when it was clicked is still at that location.
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i have a movieclip called hero, which on every frame has a movieclip called 'mc', which in every frame has a mc called 'sword'problem is, on the first frame after i change frame (like from the idle animation to attack) 'mc' traces null, so i cant access 'sword' either, which is a bit of a problem for the design of the game...the frame after i change tho, 'mc' and 'sword' can both be accessed fine.
View 14 RepliesOne of my menu item button functions has the following code:
Code:
if (DisplayObjectContainer(parent).contains(parent.getChildByName('newMC'))) {
parent.removeChild(newMC);
[code]......
i have an external class that creates an instance named mc. then mc.addEventListener(MouseEvent.MOUSE_DOWN, drag); in function drag, if i try: addChild(mc); it works fine but when i try: addChild(e.target as MovieClip); i get the error
View 4 RepliesI am building a shoppin cart in flash and I am having a problem getting the purchase items list to work. Each item which gets added to the cart gets put into a movie clip and added into a purchased items moveClip which is on the stage. Each child item has a remove button attached to it. So if the user wants to remove the item they can. The problem is when I remove some of the items on the list I get a "Error: Parameter child must be non-null." Here is the code aswell:
//The cart_array is where I want to store incoming items in.
var cart_array:Array = new Array();
//The items_array is where I want to store the "purchased_mc" MovieClips inside once they have been put on the stage.
var items_array:Array;[code]...........
am getting error, when i click input text field then only it goes to next scene, i want to use it without click input text... and also getting this error?rror i.e.TypeError: Error #2007: Parameter child must be non-null.at flash.display:isplayObjectContainer/addChild()
Quote:
myFormat.font = myFont.fontName;
//myFormat.align = TextFormatAlign.CENTER;
[code].....
I'm having this error in which I have a Main Menu scene, an Options scene, and a game scene. I have a external file which holds all the public variables that I need between scenes. In the game, there is a picture of water in the background which is purely decorative and doesn't do anything, the only time I use it in code is when I'm moving it to the back so other platforms can be positioned on top of it by using the code:[code]This used to work before I put the options scene in, and still does, provided I don't go to the options scene. Even if I don't touch anything on the options scene, simply going there causes this line to throw a "Parameter Child must be non-null" error. I tried to trace gfxWater right beforehand, but just got null. I simply dragged the water onto the screen to create it and gave it the instance name gfxWater. I don't understand how that could be null, its still there even when this line breaks, it's just on top of everything else.
In the options menu I am not doing anything with the water, I'm only changing variables such as whether or not to play music or sound effects, stuff like that. Nothing relative to the water. The only thing that I can think of that might be causing a problem is that I used a custom font in the options scene, so I had to create the text in AS3.[code]
I am trying to lay some items out on the stage using a timerEvent, out side of the "timerHandler" function the items lay out just fine. My question is...why am i getting this error when running the timer and the function. The code is below...
ActionScript Code:
//
dragDropItemNum = xmlData.dd_setup.dragItems.dragItem.length();
var tmr:Timer = new Timer(1000,dragDropItemNum);
[Code].....
I am getting this error, whenever i loaded an external SWF file. I had an Interface, in which a glossary icon is set. So, when clicked, the glossary swf file has to be loaded in to Interface. So, I made a loader and added to display hierarchy, but left empty. So, when glossary icon is clicked, i am loading this specific glossary SWF file in to that loader. But, as it is added, the following Error is thrown.
PHP Code:
TypeError: Error #2007:Parameter child must be non-null.at flash.display::DisplayObjectContainer/addChildAt() fl.controls::
[code]......
I'm working on a sliding gallery like Hulu. Setting it up and the sliding slides in and out is working fine. However, I need to add and then remove a button to each slide as it comes in and goes out. (I initially tried including the button on each slide, a mc, but this proved problematic for the event listeners). So when the file loads up, I add a mc to the first slide of the group like so (features[] is an array of movie clips - my slides):
Code:
var goBtn:MovieClip = new FeatureButton();
features[0].addChild(goBtn);
goBtn.x = 350;
goBtn.y = 230;
So I add the button/mc to the first slide - works just fine.
So there are two handlers, next and previous. So I started with the next handler. The first thing I have to do is kill the button on the panel that is sliding out, so I do that like so:
Code:
features[featureCount].removeChild(goBtn);
goBtn = null;
(featureCount is a counter keeping track of the slides). This works fine. I click the next button, and the button on the slide disappears and we move to the next slide - perfect.
So then I add the following next - exactly like I did in the beginning:
Code:
var goBtn:MovieClip = new FeatureButton();
features[featureCount].addChild(goBtn);
goBtn.x = 350;
goBtn.y = 230;
This time adding it to the current slide coming in - but this generates the following error:
Code:
TypeError: Error #2007: Parameter child must be non-null.
at flash.display::DisplayObjectContainer/removeChild()
at featuregallery_fla::MainTimeline/nextFeature()
How I'm getting an error on the removeChild() when that is already gone. I assume "parameter child" means goBtn - yes it is null because it's been removed. But I'm not trying to do something with that. I can only guess this is a variable scoping issue with goBtn - but I'm not seeing how to resolve it. Flash file attached.
i have the following script , and its giving me this error...this occured after i wrote the last line... which will unload the about section if home is pressed...
var imageRequest:URLRequest = new URLRequest("home.swf");var imageLoader:Loader = new Loader();imageLoader.load(imageRequest);addChild(imageLoader);
imageLoader.x = 0;imageLoader.y = 140;
[code]....
I have a flex application with two objects: a parent widget (called an IBaseWidget) and a child widget (called a HelperWidget2).When the user clicks on a help link, a helper widget is loaded into the list of base widgets and then displayed for the user.However, when I try to access this child widget by casting the base widget in the collection to the child widget type,the child widget returns null and I am unable to work with the widget.The following snippet correctly returns the widget ID of the newly added widget and dispatches an event to load the widget:
var id:Number = WidgetManager.getInstance().getWidgetId("Helper");
ViewerContainer.dispatchEvent(new AppEvent(AppEvent.WIDGET_RUN, id, openQuickQueryCanvas));[code].........
The problem is that helperWidget above always returns null, meaning the cast isn't successful.
TypeError: Error #2007: Parameter child must be non-null.
at flash.display::DisplayObjectContainer/addChildAt()
at fl.controls::ProgressBar/drawTrack()
at fl.controls::ProgressBar/draw()
at fl.core::UIComponent/callLaterDispatcher()
Within cs5. The animation imports fine, but I am getting that error without the progress bar being shown.
import fl.controls.ProgressBar;
var swfRequest:URLRequest = new URLRequest("animation2.swf"); //load animation file
var swfLoader:Loader = new Loader();
var progressBarr:ProgressBar = new ProgressBar();
progressBarr.source = swfLoader.contentLoaderInfo;
[Code] .....
I am getting this error, whenever i loaded an external SWF file. I had an Interface, in which a glossary icon is set. So, when clicked, the glossary swf file has to be loaded in to Interface. So, I made a loader and added to display hierarchy, but left empty. So, when glossary icon is clicked, i am loading this specific glossary SWF file in to that loader. But, as it is added, the following Error is thrown. Here, assume glossary to be TestSlide.swf file (dummy content)
[Code]...
I have a main.swf that loads contact.swf; contact.swf contains a combobox which works if contact.swf is ran alone, but if I load it through main.swf, the combobox fails.I did quite a bit of research, I'm using
import fl.controls.ComboBox; AND i'v dragged an instance of the comboBox on the stage of both main.swf and contact.swf.
With the code below I get error #2007: Parameter child must be a non null if I move
ActionScript Code:
var pictLdr:Loader = new Loader(); above B.addChild(pictLdr);
the problem goes away but the buttons react by jumping to left side of the screen. No image loads and there are not errors.
ActionScript Code:
var buttonArrayportfolio:Array = [ B1, B2, B3, B4, B5, B6, B7, B8];
for each( var B:MovieClip in buttonArrayportfolio)
{
[code]...
having some probs with this bit of script, all works fine until i try to remove the mc from the stage and I get this:- TypeError: Error #2007: Parameter child must be non-null. at
[Code]...
have tried lots of things but still get the error or others.
I have used the online document [URL]to create a dataGrid that fills with an XML document. All is good there when I run my swf all works as it should. BUT... when I run my course that adds this swf file as a child I get an error reading in the data....
loaderCompleteHandlerTypeError: Error #2007: Parameter child must be non-null.at flash.display::DisplayObjectContainer/addChildAt()at fl.controls::BaseButton/drawBackground()at fl.controls::LabelButton/draw()at fl.core::UIComponent/drawNow()at fl.controls::DataGrid/drawList()at
[code].....
I am using Flex AS3, i have a accordian with two tabs each tab contains some text boxes and i am trying to access these child controls from button event handler which resides outside the accordian, Problem is these controls are null until i open the tabs of accordian.
View 2 RepliesI use this pattern to test for undefined and null values in ActionScript/Flex :
if(obj) {
execute()
}
Unfortunately, a ReferenceError is always thrown when I use the pattern to test for child objects :
if(obj.child) {
execute()
}
ReferenceError: Error #1069: Property child not found on obj and there is no default value.Why does testing for child objects with if statements throw a ReferenceError?
I am running the following piece of code:
[Code]....
