Flex :: MXML Error When Extending Component From TextInput
Feb 17, 2012
Whats wrong with this Flex MXML code? I'm getting error messages (error lines marked with "X"). Code is very simple but I cannot find the error.Message both times: multiple initalisation values for standard property "text" of type "string" (translated from german)[code]
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?
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"
I am trying to create a menu bar with the following items: File, Database, Navigate, Window. However, I am getting an error which I do not understand: Could not resolve <mx:XMLList> to a component implementation. Can anyone explain the error to me? My code is as follows:
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 )
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 ?
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.
I'd like to extend the standard DataGrid component in flex with mxml. But I want to add buttons to the bottom of the component. I've tried attempting the following but its not working...Am I adding the Button to the wrong element?
If I drag a textInput from a component and drop it near the end of the another component, the textInput goes outside of the dropZone. <?xml version="1.0" encoding="utf-8"?> <s:Group xmlns:fx="[URL]" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" width="150" height="500" xmlns:components="components.*" > [Code] .....
I'm extending the Flex 3 panel component. I need to figure out the width of the title's text. Because, title is a private variable in panel, I can't access it via title.width.I know the font, fontsize (14), and length of the title (which will vary). Knowing this info is there a way to calculate how many pixels wide the title is?
I am working on a AS3 only project in Flex....I tried to listen ENTER event when use clicks enter/return in my textinput box....but it seems not working well...I did try using TextEvent.TEXT_INPUT and it worked fine but not Component.ENTER.
I am trying to extend the TextItem class in Flex 4 but I keep getting the following error: Could not resolve <custom:txtIdNumber> to a component implementation.
My txtIdNumber.as is as follows package custom { import spark.components.TextInput; public class txtIdNumber extends TextInput { public function txtIdNumber(){ super(); [Code] .....
Initially I thought that I might be extending the class in the wrong way, but all the examples I found look the same.
My onFocusInHandler function basically removes a "promptview" that tells the user to type in a value, with the onFocusOutHandler doing the opposite.
For example, if the TextInput text was backspaced to a blank value and the user clicks out of the TextInput box, it would show a "Please enter a value" light-gray prompt in the TextInput.
This works fine until the user clicks our custom "Clear" button. The clear button sets the text to "", and I can tell the FocusEvent.FOCUS_OUT is received because the prompt text is set to visible (its not being set anywhere else). The problem is, the cursor remains in the box as if it still has focus, so if the user immediately starts typing, both the prompt text "Please enter a value" and the user-entered text appears over the gray text, which looks pretty ugly and unreadable.
Why does the TextInput receive the FocusEvent.FOCUS_OUT event if it's not actually losing focus?
I've got a custom component (quite complex so I can't post any code here, although that shouldn't matter), that I can add to a view. When the component is deleted from the view or the view is switched I call my own dispose method which removes remaining eventListeners and kills some references so that the component can eventually be nulled and collected by the GC.
All that works perfectly fine until I add a Spark TextInput to the MXML part of the component (it took me hours to find out what is preventing the component to be collected!), so I recon that the TextInput somehow automatically adds some eventListeners.
My question is what are these listeners, or is there anything else I haven't thought of?
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]...
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")
I have an application which displays employee information. If the user opening the detailed employee information page is not authorized to make changes I set the TextInput to disabled. Some users are reporting rendering issues with this. The TextInput's text value does not appear inside the box but is misaligned and is outside of the component. You can see the screenshow below of the disabled ID column where the numbers which are supposed to be in the TextInput box are far off to the right.
How do I say an MXML component is inside some package? Well, it's in a different folder... I know how to do it ActionScript... But when I do in MXML I don't declare the package explicitly because I don't know how, and when I call it to my application, it states that The prefix "package" for element "package:Component" is not bound.
I am confused with how component life cycle goes when component build in MXML. and if MXML calls methods automatically then how to call any method in life cycle explicitly.
I am actually in the process of Architectural of our project. We have choosen Mate framework. The project is not so quite complex, but what advantages i would get over MXML when i choose Modules.
Main App - > Views - > Events - > Maps - > Services [PHP or Java]
When i come up with Modules based Architecture, it seems to be good but i doubt it should not end up with tight coupling and unwanted issues which may break the head later to solve.
Main APP - > Modules - > Module Interface -> Events - > Maps - > Services [PHP or Java]
What advantages i do get if i choose Modules over MXML Component? What is the prefered and the best way to Architect an FlexApplication? Since the Application is going to communicate with Backend, do we need to make the frontend more complex?
In our flex application we have tabs at the main level and under it we have subview.e.g
Home / Tasks / Admin etc...
In one condition we have to click on a button and open a new tab, on this tab we have to add an existing mxml component and show it in the tab.We are using parsley as the framework. Inside the mxml component test.mxml(that is shown in the tab) i am configuring it with parsley using the tag.Now when i add the instance of this test.mxml i am getting an exception. I am deriving this test.mxml instance using teh parsley context
as
context.getObject(id of component) as DisplayObject and adding it to the tabNavigator...
But i am getting exception when i try to grab an instance of a view using parsley context. How do i get an instance of a view or component that is configure through parsley using the parslye context.Also the problem is occuring becuase of the view injection..because i get a parsley excepiton on startup of the application stating that there is some problem in the context.
i want to implement this.archive/flex/tourdeflex/web/#docIndex=1;illustIndex=0;sampleId=0)type of structure in my application.how can i display different component in differentparts.