Flex :: Passing Parameter From Main To Component With Data Binding
Aug 22, 2010
I have a main mxml file (flex4) and want to pass a parameter (user_name) to a component in a directory called components. When I run the program, the user_name is NOT being sent from the main to the component file. (Interestingly, if you make the component visible, you can see the parameter has been passed).
I have hacked much larger files down to get the following two files:
Main
<?xml version="1.0" encoding="utf-8"?>
<s:Application
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
[Code] .....
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Oct 15, 2010
I havent found quite what I want elsewhere or at least am not accomplished enough to adapt I'm trying to create a project that shows radio stations with logo, listen button etc The datasource is an xml file with child tags like 'name','image' and 'listen' for each parent, 'station'. I access this data via the main application with creationComplete="radioService.send()"
[Code]...
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Mar 30, 2010
I'm using Flex with Cairngorm framework.I have a custom component which I create like this:
<components:FriendSearchPaginator id="searchResultsPaginator"
paginationElement="{_model.findFriendsPaginationElement}"
visible="{_model.friendsSearchResultsPaginatorVisible}" />
Where the findFriendsPaginationElement is inside the model locator:
public var
[Bindable]
findFriendsPaginationElement:PaginationElement = new PaginationElement();
Inside the custom component I have button that uses a property of findFriendsPaginationElement object:
<s:Button id="previousButton"
label=" prev "
click="paginateSearchResults(false)"
enabled="{_model.findFriendsPaginationElement.more_previous}"/>
But I get a warning from Flex that the binding wouldn't work that way and it doesn't. It works the first time I load up the component but every time I change findFriendsPaginationElement it doesn't reflect on the component. Do you know how I can go about doing this? (making changing a value in the binding variable changes the status of an element inside a component?)
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Jul 27, 2011
i'm using flash builder 4..i want to ask something..how to binding data to custom list component in flex??...i already try binding data from webservice to standard datagrid component in flex, and it's work perfectly...this is my code for binding to datagrid..
<mx:DataGrid includeIn="LobbyPage" x="30" y="319" id="dataGrid" creationComplete="dataGrid_creationCompleteHandler(event)" dataProvider="{TakeUserResult4.lastResult}">
[code]....
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Aug 4, 2011
Im a complete beginner in Flex programming. I have an application with a main .mxml file, and a certain class Foo that I call from the .mxml. In Foo, I make a URLRequest and listen for the Complete event. Then I found myself with the returned data in a Foo function, but I have no idea how to communicate it to the .mxml part of the application ! I looked into ArrayCollections but I can't seem to understand how they work. Isn't there a way to modify, from inside the class, a variable with a global scope ?
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Feb 22, 2010
I know that the best way to make a connection from my main app to my modules is through interfaces.
So, my problem is, how can I implement an interface so my module can send and receive data from my main app?, cuz, I understand that my module implements an interface that is used by my main app.. but, can I do it "viceversa"?
Other issue I have is, why do I need to call my main app children if I can just import a module's class?.
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May 2, 2007
how you set up data binding betweenDataSet and Tree component?
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Sep 21, 2011
I would like to bind two components with out binding and which resides in different MXML.for eg: A.mxml has textinput and B.mxml has a combobox when choose one item in B.mxml selected item should be display in A.mxml textinput.
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Apr 23, 2010
I'm having a problem in flex 3 where if a static const I have defined is used as the parameter to a function call within binding tags I get a "1120: Access of undefined property NodePropertyMatrix". _propMtx is a ArrayCollection.
[Code]...
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Nov 5, 2007
is it possible to pass a parameter to flash from html together with the call of the .swf file? In the .swf I play different slide shows. The paramter I need, to know which slide show to start. I know that I can load parameters from xml or text files, but not how to pass a parameter directly wiht the call of the .swf.
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Nov 4, 2011
If user change the value of the TextInput, then click refresh button to retrieve the data model from backend again, the GUI value will not change back. Re-binding not happen, Since the value of data model not changed, no propertyChanged event fired.In this case, I must Programmatically set the model value to the GUI after data refreshing done.I know bi-directional binding can solve this problem(when user change value on GUI, set the new value to data model immediately). But sometimes I cannot use bi-directional binding, for example, the data model is a int, but user input a non-int value, I cannot set the value to data model. So the value in data model do not change, when refresh data, rebinding still not happen.
This will make the data binding useless. How to resolve this?I put pseudo-code here for now, I will put real code later:1. retrieve a data model from server, via blazeds or something else.2. bind the model to a TextInput on GUI.3. user change the TextInput text.4. User click a refresh button, triger retrieve the model value again.5. Now since the model value do not change, no PropertyChanged event fired.6. GUI value still is the user's input, not the value from the model. can clear the model value before set the velue back, make re-binding happen.(but sometimes you do not know how to clean the model value, take int for example, you may do not know the original value and happen set the same value). Or I can manually set the model value to GUI. But both are not good looking.
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Sep 5, 2009
I have several components where I want to enable buttons based on passing a username to a function. I want to dynamically bind the "enabled" property on a button so that if the "somethingChanged" event fires, a button may become enabled or disabled. But, I'm not sure where to fire the "somethingChanged" event. It's possible that I may need to fire the "somethingChanged" event from several places in the application. Is this possible with a bound static function?
EventManager.as
public class EventManager():void {
[Bindable(event="somethingChanged")]
public static function hasAccess(myVal:String):Boolean {
}}
[Code] .....
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Jun 3, 2009
<mx:HTTPService id="addWeb" resultFormat="object" result="Added(event)" fault="faultWeb(event)" showBusyCursor="true" method="GET" url="http://localhost/search/populate.php" useProxy="false">
[code].....
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Jun 2, 2011
I am new to flex and SAP. I am designing a dashboard in flex. I have retrieved data from SAP query_view_data and I am able to show it in charts. However now I want to pass parameter to SAP web service to retrieve data between two dates. I am trying to this with the following code:
protected function adg1_creationCompleteHandler(event:FlexEvent):void
{
var IInfoprovider:String="0FIGL_O02";
[code]....
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Aug 19, 2004
I have several TextInputs in a certain form which have been assigned id in an incremental order. For example:
<s:TextInput id = "index1"/>
<s:TextInput id = "index2"/>
<s:TextInput id = "index3"/>
[code].....
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Aug 5, 2010
So I'm trying to make a project with multiple rss feeds on one page. All the rss feeds are in one xml file. this works fine but now I need to retrieve rssdata from each rsslink.
To do that I want a variable to be filled up with the rssData that I retrieve via an external actionscript file.
So in my main actionscript I would have something like this:
ActionScript Code:
var rssLoader:RssLoader = new RssLoader;
var rssData = /* THIS IS WHERE I WANT MY RSS DATA TO COME */
[Code].....
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Oct 8, 2009
first one shows playheadtime of videodisplay and another is also used for same purpose. the difference is that when we are in add mode(decided from a flag variable) both should show current playheadtime using binding. but when we are in edit mode(again decided from flag) the latter label should remain static, to be more specific, the value retrived from database.how can I do that using actionscript. I tried ChangeWathcer but I found it a bit tricky. Is there any other simpler way or am I missing something. following is my code.
private function init():void
{
if (queFlag == 'a')
[code].....
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May 3, 2010
I'm having some troubles with binding data. I have an application that contains a viewstack of components. Let's say I have comp1, comp2 and comp3 inside the viewstack. Each component, has its own data class --> comp1Data.as, comp2Data.as and comp3Data.as. All values in each component are binded to the corresponding data in it's data object.
A click in a control in comp1 leads to comp3, the same goes for comp2. Clicking a control in comp2 leads to comp3. When going from comp1 to comp3, comp3Data.as is initialized and and comp3 displays the binded values. When going from comp2 to comp3, comp3Data.as is also initialized but the binded values are not displayed...
[Code]...
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Aug 20, 2010
I'd like to add a derived property to flex:[code]However, derived won't update when I change a or b.Is there a better (faster) way to make derived update than giving a and b setter methods which invalidate it?added keyword "get".This makes more sense now, I hope.
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Apr 22, 2010
I have an asp.net page where I get the user_id from who's logged in. Now I need to pass this user_id to a flex application that runs in an asp.net page as a .swf. How can I get this user_id in a variable in my flex application.Or what is the best way to get the user_id into flex.
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Sep 13, 2011
I have stuck at the point where i need to pass a selected item of a comboBox as a parameter to a HttpService.
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Feb 23, 2009
My main SWF file, "working_login.swf" has a movieclip that loads another SWF file, called "membership.swf". It loads this SWF file inside of a movie clip which, upon a press of a button, tweens the movie clip containing the "membership.swf" onto the screen. Membership.swf allows you to login using "testing" as the user, and "testing" as the password. I have no idea how to dynamically change the username_txt dynamic text on the main swf.
What I want:
I want it to display "Hello, guest!" when there is noone logged in and no cookie set. I want the program, upon someone logging in as "testing" to have the dynamic text box display "Hello, testing!" upon a successful login. Right now, I have absolutely no idea how to go about this. I am using a class to set the dynamic text, but I cannot figure out for the life of me how to set it up to recognize a guest VS someone logged in. These are the following files that I am using: [URL]
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Feb 22, 2009
My main SWF file, "working_login.swf" has a movieclip that loads another SWF file, called "membership.swf".
[URL]
It loads this SWF file inside of a movie clip which, upon a press of a button, tweens the movie clip containing the "membership.swf" onto the screen.
membership.swf allows you to login using "testing" as the user, and "testing" as the password.
MY PROBLEM:
I have NO idea how to dynamically change the username_txt dynamic text on the main swf.
What I want:
I want it to display "Hello, guest!" when there is noone logged in and no cookie set.
I want the program, upon someone logging in as "testing" to have the dynamic text box display "Hello, testing!" upon a successful login.
Right now, I have absolutely no idea how to go about this. I am using a class to set the dynamic text, but I cannot figure out for the life of me how to set it up to recognize a guest VS someone logged in.
These are the following files that I am using:
[URL]
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Nov 23, 2009
I need to bind a property to an edit control and have the control write its value back to the same property. The problem is, I'm setting the source value before the control is created:
<mx:Panel>
<mx:Script>
<![CDATA[
[Bindable] public var editedDocument: XML;
[code].....
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Jul 21, 2010
I'm binding two AutoCompleteModified objects to one another; meaning you type in one and it selects the correct object in the other. It works fine when I define it in MXML: However, a user can add a new row to a Grid and then I set up the binding and objects via actionscript and it gives an 'undefined' error:
ChangeWatcher line 427/wrapHandler.
var innerHBox:HBox = new HBox();
var dtc_acm:AutoCompleteModified = new AutoCompleteModified();
dtc_acm.dataProvider = data2;
dtc_acm.labelField = 'id';
var cp_acm:AutoCompleteModified = new AutoCompleteModified();
[Code] .....
If I only keep it 1-way binding then it works fine. But both throw this error. Is there something about not only doing it 2-way in actionscript, but adding components that aren't on the stage yet?
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Oct 1, 2010
Does data binding work with the UITextField? Unfortunately, I'm getting the variable instead of the bound data.
[Bindable]
public var myString:String;
in a function, where tf is a UITextField:
myString = "blah blah blah";
blah blah...
tf.text="{myString}";
It's giving me {myString} instead of its data.
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Mar 19, 2011
I have a bit of a problem (since I'm not used to binding with AS3), the thing is that I want to do this kind of data binding:
<mx:Application xmlns:mx="[URL]"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
[Code] .....
But the ComboBoxes are being created dynamically with AS3, everything is working except I cant bind the second ComboBox dataProvider to be the XMLList in the first ComboBox's selectedItem.
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Apr 12, 2012
I have two Datagrid in flex. I am binding data from Datagrid1 to Datagrid2 like
(Datagrid2.dataProvider=Datagrid1.dataProvider as ArrayCollection;)
If I delete Datagrid2 data then automatically another Datagrid1 deleted .
So I don't want delete data in Datagrid1 . how can i do that , But I have other option for delete data to Datagrid1?
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Sep 15, 2009
In Flex 3, I've created a ComboBox within an MXML component similar to the following:
<mx:ComboBox id="comboBox" dataProvider="{_choices}" />
<mx:Script> <![CDATA[
import mx.collections.ArrayCollection;
// etc...
public function get choices():ArrayCollection { return _choices; }
[Code] .....
In the parent MXML application, I'm modifying the contents of the choices property:
myComponentId.choices.removeAll();
myComponentId.choices.addItem({data: "NY", label: "New York"});
myComponentId.choices.addItem({data: "CA", label: "California"});
// etc...
The binding is working in that the ComboBox is automatically picking up the new contents added at runtime, however it is not adjusting its width. The initial width of the ComboBox is wide enough only to show the initial item "All" declared in the component. However, I want and would have expected the ComboBox to re-size automatically during binding to be able to show "California", but it isn't. How can I get the ComboBox to update its width after I have added new wider labels to its dataProvider?
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Feb 20, 2010
I have a main.mxml application that lays out my application, it contains a "browse and upload" button. And contains an image to view the users uploaded image like so:
<mx:Application
<mx:Script>
<![CDATA[
[Code].....
In my myModel class I have a img_scld_bm that the browseAndUpload() function draws into after scaling it.
My intent is that my mx:Image will display the image. As shown here I'm assigning the image source="mymodel.img_scld_bm", this ends up just showing a broken image icon.
I also tried data binding, where in my myModel class I have [Bindable] var img_scld_bm. And then tried setting my mx:Image source="{myModel.img_scld_bm}" .. that didn't seem to do anything either. All this compiles fine, no warnings. I think in this case, I'm not setting a trigger or propertyChange event to update the binding?
how to correctly bind an mx:Image source to some bitmap?
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