Flex :: Put MXML Child Nodes Within A Custom 4 Component?
Nov 27, 2010
Here is an example of a custom component. It is just a box with a title label and a close image (X):
[Code]...
When using the component in an MXML document, I would like to have the "(HEADING TEXT)" replaced with a parameter (should be easy) as well as the "(INSTANCE MXML)" with several labels, text inputs, check boxes, etc. (maybe harder). I have found this script-based method, but I would like a cleaner compile-time solution if one exists.
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May 18, 2011
I've been trying to create a custom mxml component that extends another custom mxml component (i.e.MyMXMLComponent -> BaseMXMLComponent -> Group). I've been reading that trying to add visual children to MyMXMLComponent caused error with Flex 3 but that's no longer the case with Flex 4.
What I want to know is whether this is a supported/fixed/documented feature of Flex 4? or just some undefined behavior in Flex 4 that may get changed with future updates?
if this is supported and documented feature, does anyone have link pointing to adobe document stating it as such?
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Aug 26, 2011
I'm using several custom MXML components in my Flex 4.5 application.They all use absolute coordinates to place Image, Label, Line, etc. components and are currently based on a spark.components.BorderContainer:
<?xml version="1.0" encoding="utf-8"?>
<s:BorderContainer
xmlns:fx="http://ns.adobe.com/mxml/2009" [code]....
Then I've realized, that I probably don't have to use BorderContainer, because I don't draw/need any borders around my custom components.But I don't know, what to take instead of it.I've tried taking <mx:UIComponent> (and removing <s:Layout> tag above), but then I get the error:
'Image' declaration must be contained within the <Declarations> tag since it does not implement 'mx.core.IUIComponent'.
'Label' declaration must be contained within the <Declarations> tag since it does not implement 'mx.core.IUIComponent'.
Is there some simplest possible spark "container"? And do I need a "container" at all if I use (and want to use) absolute coordinates?
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Oct 14, 2009
Are there any way to declare a child component in mxml which is private/protected or even static? Sure we can do this inside a script tag, but are there any other way?
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Apr 26, 2010
How can I add an MXML component as a child of the main application using ActionScript. It's not possible to instatiate it, is it? Assuming that behind every mxml file stands an actionscrpt3 class, I tried to import it but id didn't show up.
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Sep 25, 2009
How to take an existing custom component in Flex and convert it into a module? EDIT: What should be done in the mxml where this custom component is used? Should it be replaced with a to load the module? If yes, how to deal with code that uses instances of the components?
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Dec 9, 2009
I am trying to develop a custom component to act as a divider.
[Code]....
I would like to use this component to assign objects like this:
[Code]...
Unfortunately, this does not work. I get a compiler error saying: In initializer for 'left': multiple initializer values for target type mx.containers.Canvas.
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Oct 7, 2010
I'm trying to create simple custom component with two labels with this MXML:
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="250" height="30">
<mx:String id="result" />
<mx:Label x="5" y="7" id="titleLabel" text="{label}" width="120"/>
<mx:Label x="125" y="7" id="resultLabel" text="{result}" width="120" textAlign="right" color="#A41D00"/>
</mx:Canvas>
It is working well at runtime, bud I have troubles making it working at design-time. How can I make databinding work at the design time? If it is impossible, how should I code the label text assignments?
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Mar 3, 2010
I have defined small MXML component which calls web service which returns random number on request, then my component displays the number.
How do I refresh the MXML from main application control, so it will recall server again?
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Aug 21, 2011
I'm new to Flex and am porting a pure Flash/AS3 app to Flex 4.5. I've created a custom MXML component based on BorderContainer
<?xml version="1.0" encoding="utf-8"?>
<s:BorderContainer
xmlns:fx="http://ns.adobe.com/mxml/2009" [code]...........
and it would work well, but here in Flex 4.5 I don't know how to do this.Also I've noticed that there is a dropShadowVisible="true" attribute, but not sure if/how it can be used for my purposes.And I'm not sure if scaling up/down a custom component is allowed in flex or I probably should use "Flex Effects" (but how?) and also set disableLayout="true"?
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Jun 22, 2011
I'm trying to do this using only mxml, no <script> tags, although I don't necessarily need a solution that's only mxml. It was more of an educational exercise to see if I could do it all in mxml. I have a custom component that has a slider and textinput and their value/text properties are bound together. I'm surfacing a few properties of the slider in my component so that it can sort of be treated like a slider.
[Code]...
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Mar 31, 2010
I'm creating some custom components and backing code. I've created a Flex library project in Flash Builder which compiles to a SWC. The problem is now that all my MXML files get compiled into classes in the default package, making the whole thing a big mess.Is there a way to set a package declaration for MXML files? After all it just gets translated into AS3 classes. This seems to work in regular Flex projects using a namespace declaration so I'm at a loss how that is supposed to work. The other option is building out all the components in AS3 which I'd like to avoid.
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Jun 22, 2011
I have a Custom Component that has a couple of Canvas with some background colors assigned to them. Now i have hard coded the colors, i want to move them to an external css file. So i would like to have the css declaration like this :
[Code]...
My question is if i can define custom style names like dividerRightColor and if so, how can i use that value inside my MXML Component? I have seen examples of using them inside Pure AS components.
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Aug 12, 2009
A Flex components values are initlized by init methord. In an application flow, How to refresh a mxml component data value ; as init is callled at the start up it self only.
eg. of mxml componet may be as simple as button label or text as complex as repeater whose data provider is a web service ( means a fresh quesy should be made to pull the data and refresh the dataprovider of repeater )
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Jun 4, 2011
I am working on a custom Flex 4 component which is an aggregation of two existing flex components. I would like to be able to specify my own custom properties for the component as well as access the existing public subcomponent properties via MXML. For instance I might want to adjust the font color or style for the label and text input. toy component which aggregates both a label and a text input:
<?xml version="1.0" encoding="utf-8"?>
<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code]....
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Feb 3, 2011
What I'd like to do: create an MXML component with some children, then extend it via MXML to create a new component with more children, without losing the original set.In other words
create a component bc.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:BorderContainer xmlns:fx="http://ns.adobe.com/mxml/2009"
[code].....
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May 28, 2011
I am trying to override a Button class, i have a few properties which i wish directly initialise with the mxml description of the component, like :[code]which function is triggered ( in order to override it ) when all properties with mxml description is fully initialised with their values ?
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Sep 3, 2009
I have two components. One is called "InsideComp" and one is called "OutsideComp". OutsideComp has InsideComp as one piece of its component, and in my main MXML file, I have embedded an instance of OutsideComp. How do I access a public variable of InsideComp within my main MXML file?In Actionscript, I could just do something like:OutsideComp.InsideComp.valToChange = 5; But I dont know how to do it in MXML. I know this is probably an easy question.
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Dec 8, 2011
I develop a piece of code that brings me to an xml, all Nodes i use this code:
for(var i=0; i< menu_xml.childNodes.length; i++){
corrent_node = menu_xml.childNodes[i].length;corrent_item.action = corrent_node.attributes.action;corrent_item.variables = corrent_node.attributes.variables;corrent_item.name.text = corrent_node.attributes.name;
[code]....
What I need is for each of the nodes highlighted in green to return the child Nodes. Example: when I move the mouse over the menu Indoor lighting, the results should be: Indoorlighting | LED 10W> 3W LED> LED 6W
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Jun 23, 2011
I have a component "child" which has a cancel button. Now this component is placed in a state called "newChildComp" I also have another component called "parent". In the parent component, i have a button that dispatches an event. Here is the event code:
[Code].....
so, basically,i am checking to see if the cancel button component in the Child component, while i am still in the parent Compoent, was clicked, if it was clicked, call the cancelButtonHandler. The problem is by the time the addNewChild handles the event, that cancel button was still null. My question is how do i solve this without using the itemCreationPolicy on the cancel button?
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Feb 22, 2011
Could I see an example on how to count how many child nodes there are under a root xml tag in flex?
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Mar 2, 2012
This is NOT duplicate of my earlier post (its is slightly different)But this is similar issue with similar error but its not the same error The error I am getting now is below while dispatching the custom event from my custom component
TypeError: Error #1034: Type Coercion failed: cannot convert events::MapEvent@a74ab51 to flash.events.MouseEvent.
dispatchEvent(new MapEvent(MapEvent.CLICKED_ON_MAP));
Note: The error in my earlier post is giving below error message
Type Coercion failed: cannot convert flash.events::Event@81ecb79 to com.events.ShopEvent
The difference here are two things, the earlier error is while converting flash event to custom event and now this one is while converting custom event to flash event and secondly, I have no clue why it is trying to convert to the mouseevent where I am just dispatching my custom event with proper listeners.
This is my custome event
package events
{
import flash.events.Event;
import ui.map.MapElement;
[code]...
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Aug 15, 2011
how do I get a value from another mxml.I have a vaule in the child mxml that i would like to parse to the parent mxml.Then use the vaule to create a search method.
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Jun 21, 2010
When I define custom propertie in my MXML component, I also want to define a set of possible values of that property to make Flex Builder show then (possible values of the custom property) when I invoke code completion function.
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Jul 22, 2010
I want to make a custom container, usable in MXML like:
<local:MyContainer>
<s:Label/>
<s:Button/>
...
</local:MyContainer>
But I'd like to be able to catch when the children are added so that I can control stuff like when & where they're added. I tried overriding addChild(), addChildAt(), addElement(), addElementAt(), (extending the Group class) but they only fire when you add elements specifically with those functions - the application launches and the label, button, etc, end up in MyContainer without calling these functions. How do I control the addition of sub-components via MXML?
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Mar 4, 2011
I'm working on a simple task/calendar tool where tasks can be added dynamically to a canvas. Here is the main application as defined in Main.mxml, which is essentially just a Canvas and a button for adding a task:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Canvas id="MainCanvas" borderStyle="solid" width="300" height="300">
[Code].....
The problem is that when I add a Task instance to the Canvas, the children (the button and label) don't appear. I tried setting creationPolicy="all" on both the Canvas and the BorderContainer, but it still didn't work. I've read a bunch of posts about people having issues accessing members of their class before the class is fully loading, but all I want to do is SEE that Label and Button show up inside the BorderContainer.
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Nov 18, 2009
I'm using the iconField property of the Flex Tree to dynamically set the icon that a node should use. This works fine for leaf nodes but for branch nodes it doesn't seem to respect my iconField and instead just shows the default folder node.
Here's a simple repro:
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
[Embed("assets/icon1.png")]
[Code].....
What happens is that icon2 shows for the East and West nodes but icon1 doesn't show for the Sales node. How can I get this to work?
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Feb 5, 2011
Is there a way to enable dragging of only leaf nodes in a tree component?
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Sep 21, 2009
I have two mxml files. one is main that is application tag mxml file and another is my mxml component file. I have a viewstack in my main mxml whose id is, say, "mainViewStack". Now I want to set selectedChild property of "mainViewStack" from my mxml component file. [code]...
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May 11, 2011
how to use mxml component in another mxml component actionscipt code [code]but i am getting error saying "Type was not found or was not compile time constant:warning")
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