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.
I am trying to define the content area of a custom component that extends mx:VBox. The component has predefined headers and footers (visual children) and I want to set the area in the middle for adding children to the component. The component will be used like this:
<custom_component>
<mx:button/>
</custom_component>
How would I set this content area?
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?
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?
View 2 RepliesHere 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.
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?
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?
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"?
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]...
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.
View 1 RepliesI'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?
How do you set the default value of skinClass for a custom component in Flex? I've extended the DropDownList with my custom component, but I would like to specify a default skin to go with it instead of always setting the skinClass value for each instance.
View 1 RepliesI 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.
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 have just created a custom AS3 Component to use in an MXML project.[code]but then i lose some re usability.What do i need to do to be able to set properties from mxml?
View 3 RepliesI 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]....
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].....
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 ?
View 1 Repliesi never use compenents, and was recently asked to build one. Ha. Anyway, i have a working class that does all i expect, however, when transforming the class to a component, i am having trouble getting the inspector to actually 'set' the variables. below is a very general idea of what i am doing. All the variables show in the spector, but only the default values are working at runtime.
[Code]...
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.
View 4 RepliesIs there an easy way to make a parent container (eg Group) resize when it's children resize?
Below is a little example app. When I put the 200x200 'food' in the 'stomach' the stomach & it's containing 100x100 'body' should resize to contain the food.
[URL]
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[Code]....
I have a custom component extending Group and containing a viewstack child. The component is coded in actionscript.
When instantiating the component in mxml like so:
<components:CustomGroup width="100%" height="100%">
<mx:HBox backgroundColor="0xDDFF11" width="100%" height="100%" />
<mx:HBox backgroundColor="0x22DD63" width="100%" height="100%"/>
</components:CustomGroup>
...I would like to override whatever function that adds the children to the parent Group and add them to the child viewstack instead but I can't seem to find where the adding occurs. Breakpoints in addChild and addElement shows that they are not called during the add.
Is it possible to control the properties of 'advancedgridcolumns' in 'advanceddatagrid' mxml tag. For e.g. suppose the grid data provider has 3 different fields. Out of these 3 fields, one field is 'to_be_decided'. This field should not be displayed initially. Only the remaining 2 columns should be displayed (visible true) and the third column (one with data field as 'to_be_decided', visible flag will be false here ) should be hidden. It will be visible when some event like a button click or something is fired.
We can do this in action script coding by accessing individual columns of grid and taking appropriate actions. But will it be possible to do so in mxml? Is there some default property in grid that can be used here ?In mxml I can not access them individually in the grid (under tag) and hence I can not set the visible attributes individually for each of them. To add them one by one in 'columns' tags I would be required to know the data field in array collection and that I dont know. Only data field known is 'to_be_decided', rest two fields will vary time to time. Therefore even if I addd this one gridcolumn in 'columns' tag what about the other two?
Something like this :
<mx:columns>
<mx:AdvancedDataGridColumns dataField='to_be_decided' visible=false>
<!-- How to add other 2 columns here ? -->
</mx:columns>
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]...
I'm playing around with the scaleX/Y in the canvas tag and have noticed some strange behaviour. When I set scale in in mxml the width and height of the canvas are adjusted accordingly. For example if I have a canvas like this: <mx:Canvas width="1000" height="1000" scaleX="0.1" scaleY="0.1" />
The canvas now appears on screen to have a width and height of 100 and if inside my creationComplete callback I check the width and height property they are indeed 100. But if I do exactly the same thing except I set the scaleX/Y property from actionscript the canvas on screen appears to have a width and height of 100 as expected, but when I check the width and height property of the canvas they are still at the previous values of 1000.
I need to resize a Group using myGroup.height = 0. And it works, but myGroup's children are still visible, I do not know why...
View 1 RepliesWhen 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.
View 2 RepliesI 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?
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]...
View 4 Replieshow 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")
View 3 Replies
