I am a newbie in Flex development and using Flash Builder 4 with SDK 4. Now I get the error that "the prefix "fx" for element "fx:Style" is not bound" in line number 4.I searched for it, and it has sth. to do with namespaces, but I can not solve it by myelf.I have the file called "UserStory.mxml" in the directory "components" to place it via the main.mxml onto the screen:
<fx:Script>
<![CDATA[
import components.UserStory;
[code]...
What is the significance of the $ prefix on some properties of Flex Objects?
e.g. item.$width
I have a component library. It has a manifest file that looks like this:
<?xml version="1.0"?>
<componentPackage>
<component id="AutoComplete" class="be.edge.components.AutoComplete" />
<!-- more components left out for brevity -->
</componentPackage>
I compile the library through FlashBuilder with these compiler settings:
When I use the compiled library in other FlashBuilder projects everything works as expected. I get code completion and when I select a suggestion from the code completion a namespace attribute is automatically added to the component, like this:
<s:Skin xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:ns="library://ns.edge.be" >
[Code].....
I have a window in which I want to add/remove component and resize the window accordingly based on states. but for some reason it's ignoring the first resize.here's a sample code
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code]....
when the state change to 'two', I want to add rect2 to display and increase the minWidth and size of the window. And when the state change to 'one', i want to remove rect2 from display and resize the window. This seems to work except the window doesn't shrink on the very first time the state change from "two" to "one" but works as expected afterwards. I'm not sure why it's ignoring first time I reduce the width. I also tried changing nativeWindow.bounds directly but that didn't work either.
Originally I just tried setting minWidth based on state (minWidth.one="450 minWidth.two="791") but that caused window to grow on left and shrink on right which caused the window to move left whenever the state changed. so then I just moved the window to right whenever state changed but that caused some flicker that I didn't want.
I am working on a product options form whose contents should be cleared by a clearOptions() method each time the user adds an option. The option name TextInput is bound to a value object that is reinstantiated each time the the user adds a product option. The problem I am having is that the StringValidator fires each time the bound value object is reinstantiated.
[Code]...
I've got a class like this:
class Foo extends UIComponent {
var someDispatcher:*;
...
}
And I want to listen for events fired by someDispatcher... But, of course, someDispatcher may not be bound until "later":
<components:Foo someDispatcher="{someOtherComponent}" />
What's the best way to listen for events from someDispatcher?I know I could bind to someDispatcher, then wire up the event handlers when it's updated... Or I could use getters/setters...
I have an mx:TileList which is bound to an ArrayCollection.I have some code that displays a "Loading..." message before modifying the ArracyCollection and some code after that hides the loading message.For small data sets, it works fine. However, I noticed with an array size of about 50~ and larger, flex will hide my loading message before the TileList is finished rendering the new data and I'm left with a blank screen for an odd second.Is there an event I can listen to that is called after the TileList is finished re-rendering? Code looks something like this:
loading_message.visible = true;
for each (var x:Object in new_data) {
tile_list_data.append(x); // bound to my_tile_list component[code]..........
In this example, loading_message appear, disappear, and then the flex app will lag before finally revealing the updated TileList.
On creation complete my parent component executes an "init" function which simply sets public bindable variables in child components. I'd like the child components to watch these variables and upon being set use them. However, for some reason the ChangeWatcher is not firing with the change of the variable. Below is my code;
Parent Component
private function init():void
{
userInfo.user = new User("Tom");
[Code]....
I've got a class like this:
class Foo extends UIComponent {
var someDispatcher:*;
...
[code].....
I have an ArrayCollection bound to an editable DataGrid, another component needs to know when the ArrayCollection changes (as a result of changes in the DataGrid) so it can also update itself, so is listening to the COLLECTION_CHANGE event of the ArrayCollection.
The problem is that the DataGrid only updates the ArrayCollection when the row being edited losses focus. This is not good for my app as a user could edit a column on a row and not click elsewhere on the table for a long time (causing the row to lose fucus), therefore the changes won't have propagated to the other parts of the application.
How can I make the data grid inform the ArrayCollection of a change every time there is a keyup event on a text input instead of every time a row looses focus?
How can I cause numbers with no value to show up blank instead of NaN on forms?Let's say I have a User class with an optional weight (kgs) value, of type Number. If I edit a User in Flex I get the user object from the server and bind weightInput.text to user.weight. If weight is null on the server it will be translated to NaN in Flex, and then the value of weight in the edit form showes up as NaN. That is really inconvenient, as I would like it to just be blank if it has no value.
View 1 RepliesI get the webservice(spring WebService) response properly ,but the event.result object is null.I can see the SOAP response body in the event.message.body variable.
## Soap Response ##
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/><SOAP-ENV:Body><getUserUserTasksResponse xmlns="http://ws.burr.com/BurWS/9_0">
<foundTasks>
[code]...
I have a datagrid with an xmlListCollection bound to it:
<mx:DataGrid id="dgCompetente" includeIn="Competente" x="10" y="66" width="547" height="468"
change="dgCompetente_changeHandler(event)" dataProvider="{colCompetente}"
editable="false">
[Code]......
I want the selectedIndex to remain the same. So, if I delete item 2, the next in the list should be selected. The problem is that if I delete item 2, item 3 will be selected and I have no idea why.
I have a website which has a swf as a horizontal menu. When the website is opened as[URL] the functionality of the swf does not work i.e. the links contained within the buttons aren't executed on click. However, if you enter the address as h[URL] the links work exactly as they should. I have contacted my host for clues but because I don't know exactly what I am asking for, the help offered is of a 'have your cleared your cookies' variety.
View 11 RepliesI develop a lot of frameworks for Flash games and applications. I have always prefixed my class names with a random character or two, to avoid conflict with class names that the developer may already have, for example: class LEntity Recently I had a co-worker blast me for poor and "annoying" naming of classes who then proceeded to rename every class in the frameworks I've created for people here to use. I'm having trouble explaining my reasoning thoroughly enough for him to accept what I've done as a good approach.
Is what I've done above actually a bad thing? If not, how can I explain otherwise? If so, why? Comments are asking about namespaces - I know AS3 in this example has what I know to be called a namespace but I'm not sure if this is the same thing or if it can be used as expected.
I have seen lot projects following this kind of coding style
Any significant advantage the following syntax
My project name : King Author(KA)
I am going create button components. My class name "KAButton"
Is it right approach and what about namespace?
naming convention for GUI components(Flex/Html) ?
I have an xml document that has namespace qualified elements. What I want to do is search the xmlList to see how many namespace qualifier elements and/or attributes there are. So for example
<ns1:root xmlns:ns1="httpL//ns1.com" xmlns:xsi="http://xsi.com" xmlns:notused="http://notused.com">
<child1 xsi:attr1="a">some text</child1>
[Code]....
I'm new to Flex and am using TileList bound to an ArrayCollection. The array collection is empty at load time, and then updates with the results from am HTTPService call. The problem is that the item renderers aren't being rendered as expected, I'm guessing because there was no data when they were first rendered at load time. Here's simplified example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" >
<mx:Script>
[code].....
I know that there is no such function as getElementByName in Flex but I also now that you can do this["object_id"] to get the element of the application u're in.What about getting an element inside another element?I've tried making element["id"] ? But in my try-catch it always runs the "catch" part..how do I get an element inside another element just having it's id in dynamically created string form?
View 2 RepliesI have flash where there is a link for song download. And, at the bottom of the flash I've a count, loaded thorugh flash vars which should increment everytime donload button is hit. Please let me know what approach should i take to do that. can i call a Java method on donload button which will insert a row in the table and and then get the count and render it to the count variable in my flash?
May be this extremely confusing. Here is a very similar example on how it is done. This is actually very similar to what i want to do. [URL] on this link there is count below which increments you hit the download button.
I've built a rather robust tooltip class recently that attaches and draws a single tooltip sprite to the root, then uses MOUSE_OVER to detect when it is over a tooltippable object, and shows the appropriate tooltip text. At the moment, I'm ensuring that any elements in my application which wants to take advantage of showing tooltips implement the ITooltippable interface, and expose a public getter, get tooltip().
[Code]...
Basically I have 14 text boxes, each box draws its content from an external txt file. Next to each text box is a button. I want the button to be either visible=true or visible=false depending on weather or not the text box has content or is "undefined" Here is what I have so far, and it's not working:[code] I would like a FOR loop to just run through the variables and check to see if any of them are undefined. if it is, then make the correct send button invisible.
View 8 RepliesI have an array like this
public var dataAL:Array=[
{Kiv:"cash", jan:26,janTarget:28,feb:27,febTarget:26,mar:30,marTarget:32,apr:31,aprTarget:32,may:28,mayTarget:29,jun:46,junTarget:32,jul:37,julTarget:39,aug:40,augTarget:42,sep:41,sepTarget:42,oct:48,octTarget:49,nov:40,novTarget:41,dec:38,decTarget:40},
[code]....
Now if i want to access febTarget for cash how will i do it?
I've got a spark list that gets dynamically filled.So far the new items appear at the bottom of the list. What I'd like to do is to add them at the top.The items in the list have a unique ID so some kind of sorting mechanism would probably do the trick as the new items have a greater ID than the old ones.What I'd like to avoid is some complex method behind this as I'm working on a mobile platform and the list can get quite big so I need this to be as efficient as possible.The list's data provider is an ArrayList that gets updated using binding.
View 1 RepliesI think I pressed something in Flash and now none of my images are showing up in the workspace. Only the bounding boxes are showing up.
View 1 RepliesIn Flex Mobile I have a few buttons in the action bar. On devices with very small screen (such as the HTC Wildfire) not all buttons can be shown. Is there a way to tell Flex to hide an element when it doens't fit? I know it is possible by using states and test the width of the screen but I hope there is another way..
View 2 RepliesI use flex4 list[code]...
as far as i know , i can only know the the index that i already select by function
list.selectedIndex
did flex4 proivde some other function that i can use?
Is there a way to put borders around the (MXML) elements of a Flex application? I'm picturing something similar to what Firebug does for HTML with the Inspect button (url...)
View 4 Replieshow do you know the parameters (eg height and width) of the element, if the constructor is passed only his Graphics?
View 1 RepliesI have a simple list in Flex that is populated every N seconds by a dataprovider. My goal is to avoid scrolling the list after the dataprovider has been changed.
So, before I populate the list, I save the selectedIndex, and once the dataProvider is filled, I call:
list.selectedIndex = index;
list.scrollToIndex(index);
Trouble is that this moves the selected item of the list to the top. The solution would be to get the index of the first element displayed in the list: but I have no idea on how to get that.