Flex :: Check If An Object Is Empty Or Not?
Oct 26, 2009
I want to check in my function if a passed argument of type object is empty or not. Sometimes it is empty but still not null thus I can not rely on null condition. Is there some property like 'length'/'size' for flex objects which I can use here.
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Oct 26, 2009
If I have an XMLList object in Flex, what is the proper way to check to see if the list is empty? Should I just compare the result of myList.length() > 0, myList.toString() != "" or try another method altogether?
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Nov 19, 2010
In Actionscript 3.0, how do I check if var myObject:Object is functionally identical to {}? I take it I can't do ...
[Code]...
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Feb 18, 2012
Is there a static property in Action similar to that in the String object in .net to check if a string is empty, that is String.Empty.
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Aug 14, 2011
I'm doing some Actionscript work right now and I'd like to know whether there's a way to initiate an empty object's value programatically like this:
var myObj:Object = new Object;
myObj.add("aKey","aValue");
To add a property called aKey whose value is aValue.I need to create a "Dumb" (data-only) object to use as a parameter to send via POST. So I don't know offhand how long and/or how many attributes it's gonna have.
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Apr 24, 2009
I have a multiple choice quiz designed for a client. I have an array that works thruout the questions, that if the user answers incorrectly, it stores the question number in the array. When the user reaches the end of the quiz, I dont want this array to always display at the end, since the user could have all the asnwers correct (which means the array should be empty). I am trying to make an if else statement that will display a different message if the array is empty.[code]...
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Sep 2, 2011
I have a code to erase a masked movieclip. I would like to know how I can check if the whole movieclip is been erased. So I thought I had to check if the BitmapData is empty. How can I check if every pixel of the movieclip has been erased?
if (erasableBitmapData = empty){
trace("empty")
} var lineSize:Number=40;
var doDraw:Boolean=false;
var resumeDrawing:Boolean=false;
[Code] .....
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Apr 19, 2010
How to check if a string is empty?
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Feb 17, 2010
I'm trying to make a login. How do I check to see if anything at all is typed in the string.
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Feb 23, 2010
checking an XML file for a specific node.
Example:
<vid
flv="videoName"
thumb="thumbnail.jpg"
title="Video Title"
[code]....
The first vid node contains a path to a logo graphic, I then need to check in my ActionScript if there is a logo there or not, and to do something if there is(display the logo) I can trace out the logo path so I thought I could run a simple if/else to check if there is anything in that node and if so to do something:
private function thumbOver(e:MouseEvent = null):void
{
trace("
");
[code]....
Now I've tried everything, but it will always trace out "Does have a logo" no matter what I do. I tried:
if (tabData[tabID].video[e.target.id].@logo == "")
if (tabData[tabID].video[e.target.id].@logo == null)
However I get the same results?
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Apr 19, 2010
I need to merge 2 arrayCollection and avoid duplicates. They contain objects with their own attributes. I would like to avoid duplicates.
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Jun 25, 2011
I installed said program but whenever I add users, it says they were added successfully and exist in CMD.However when I check the users.dat file it is empty. When I try Live Encoder it says the user does not exist.
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Jul 1, 2010
Is there a simple way to check if an associative array has anything in it whatsoever? Not looking for a specific key/value, but rather if there's *anything* in it, similar to checking if a normal array is empty by checking it's 'length'.
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Apr 7, 2011
I have a button on stage which has a child menu movieclip and that movieclip has three submenu button children.On each of these 3rd level buttons an event listener draws a new container on the stage and adds a new movieClip holding various info.This all works nicely, but I cannot work out a way to get an eventListener on the menu buttons to check if the container already exists so I can then stop the button repeating the add container function. So, at the moment you can repeatedly hit any of these menu buttons and they will just continue to add info movieClip children.I've tried some nice Boolean commands that should work, but I think it's the nesting of the children/relationships that are not allowing me to get this to work.So, basically for arguments sake, let's say I only have one of each item... here's the nesting of children:[code]
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Oct 21, 2010
I have 3 input texts on the stage.
money_input
percent_input
years_input
what I want after pressing the button (calculate_btn)is to get thees values entered from these input texts into 3 vaiables.
var $money
var $percent
var $years
and check if the inputs are numbers only not string not empty. I tried to convert the inputs to numbers to insure that they are numbers without making a function to check the inputs but always I get NaN when I entr value like 444bb;
ActionScript Code:
error_txt.text = "Enter some values to calculate your loan";
//--------Make the button listener----------//[code].........
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Jun 3, 2004
I want to check if an input text field is empty. I only managed to do it this way;
mytext = textfield.text;
if(mytext != "") .....
The problem with this approach is that I also want to exclude variables with whitespaces.
I tried; if(!isEmpty(mytext) )..... but that didnt work.
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Jan 27, 2011
The following is my codes. This is still work in progress; so, you will see some functions with empty contents. Plus, this is my first Flex application; please bear with me. This is a quiz application that gets the questions and answers to each questions from a ColdFusion web service. There are three types of questions, True or False, Multiple Choice with single selection, and Multiple Choice with multiple selections. So, based upon the question type, the application would dynamically generate the appropriate amount of radio buttons or check boxes for the users to select. I got these working. The problem that I am having is, I am not sure how to check what the users have actually selected. In some other forums and posts on other web site, it said that I can use event.currentTarget.selectedValue to get the user selection. But when I actually do it, I got a run-time error saying, "Property selectedValue not found on mx.controls.FormItem and there is no default value." My question is, what do I need to do to capture the user selections?
[Code]...
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Aug 20, 2010
I don't know if i am saying it right, but i want to take out(empty?) a display object properties.Instead of manuallyQuote:
trace(displayObject.x);
trace(displayObject.y);
trace(displayObject.width);
[code]......
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Oct 21, 2009
Is there a simple way to completely empty a display object container regardless of what it contains, including if it's already empty? In other words, without determining its children and using removeChild on each?
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Aug 12, 2010
In the documentation for DisplayObject, it states that the width and height of the DisplayObject can not be changed if it is empty. Why is this restriction necessary? In every other framework I have used, you can resize containers that are empty.
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Mar 3, 2009
I have a list of 99 item (something like a phone book) and I will like to sort them in different method. Part of the 99 item might be empty, so the requirement is to move the empty field behind the sorted data in every sorting behavior, here the code we have so far:
[Code]...
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Nov 6, 2010
I know what I'd like to do, and after significant searching cannot find the solution.
I am working with the Collision Detection Kit by Corey O'neil
I have the following snippet, which checks the name of two MovieClips.[code]...
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Jun 9, 2011
I am trying to use a mouseevent.startdrag to move a particular movieclip, but I don't know how to go about checking the object in question. The code below doesn't seem to work with either ==Object(MCsquare) or just ==MCsquare.
function onStartDrag(evt:MouseEvent):void
{
trace(evt.target);
[Code]....
How can I run a check to see if the target object is MCsquare?
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Feb 21, 2009
I found this once but I've forgotten what it is.
I want to check if my mouse is hovering over a specific object.
What is it called?
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Jan 26, 2012
I want to know how can I check if an object entered the screen .
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Nov 27, 2009
I want to check if an object I just clicked is from an array.Sy there are ten objects on stage mc_01, mc_02, mc_03, mc_04, ect.This is my array
Code: Select allvar section_arr_01:Array = [ mc_01, mc_02 ];
And this is a function that will run onPress (all instances)
Code: Select allfunction CheckInstance(input, section_arr_01) {
[code].....
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Jul 31, 2010
I have a Flex 3.2 application for which I am developing a custom style. Basically the first stylesheet gets applied first, and then my custom stylesheet. I am wondering how I can completely empty a value set in the first stylesheet with a value set in the second. The value has to be blank because if the horizontal-center value is set then any other positioning values are ignored.
Example
CSS1.css
.myButton {
[code].....
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Dec 20, 2011
I am developing an application in AS3 for Android devices and I am choosing to use XML for setting storage...
Unfortunately I have been able to test using the contains method whether there is the correct text in the XML file I have tried to use this...
Code:
var updates:Boolean = true;
var k:Number = 0
for(k = 0; k < 6; k++){
if(localXML.Party[k]){
[Code].....
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Dec 18, 2009
I wonder how can i check that concrete object is on the scene for example:
var sprite1:Sprite = new SPrite();
stage.addChild(sprite1);
...
if(?????)
[Code].....
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Dec 20, 2011
I have 2 classes, Entity and PlayerEntity.On the main class (Main.as) I am using an for loop to check which one is a PlayerEntity and which one is an Entity. (Note that Entity is the superclass for PlayerEntity)[code]...
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