Flex 3 passing data using custom components

Similar Questions

• Using custom components will break my site if the framework is updated?

  Using custom components will break my site if the framework is updated?

  For example if I use the tink browser which is a version of the spark of the viewstack: http://www.tink.ws/blog/flex-4-navigator/

  In the case of update of the framework, it is possible that my sites Web stops working due to changes in the basic components used?

  I would like to know how can I design my components to ensure that they stop working?

  Thanks in advance.

  Any updates to the SDK that you recompile against could potentially break the desired site behavior. Could be with the SDK components or ones you've written yourself. It's just the nature of software development. Testing is the key.

• Flex 4.1 export of custom components in an Application or Module if used in the Module only?

  According to me, Miss me something here:

  "Because a module is loaded into a child domain, it has definitions of classes that are not in the area of the main application. For example, the first module to load the PopUpManager class becomes the owner of the PopUpManager class for the whole application because it records the Manager with the SingletonManager. If later another module tries to use the PopUpManager, Adobe® Flash® Player throws an exception.

  This technique also applies to components. The module that uses the first has the class of the component definition in its field. Therefore, if another module tries to use a component that has already been used by another module, its definition do not match the existing definition. To avoid a mismatch of definitions of element, create an instance of the component in the main application. The result is that the definition of the component is the property of the main application and can be used by modules in any field of the child. »

  I thought that if I use a component in one module then I won't be able to use it in application modules or a brother and I would be able to use it only in the Submodule of this module as the component definitions are in the scope of module which is a child of the scope of the application.

  So I just do a simple example: application with 2 moduleLoaders and 2 modules both using the same 3 components:

  (1) ButtonBar

  (2) DataGrid

  (3) CustomSkinnableComponent (empty, just extends SkinnableComponent) with custom skin (with a Rect 200 x 200 px, extends skin).

  I start the application--> two modules load without problem. Wasn't this supposed to cause error with the second loading module because the first module contains the definitions of components? Or does not result in an error because the component definitions match and match because my component is in the same project in flex, and in this case there is no problem. Problem will be if I have 2 or more RSL with the same definitions of package and class, but different features?

  I do not really understand how to cause incompatibility of definitions component so I can watch to avoid that it... can someone please explain?

  I'm confused and I thought I knew this kind of things. What Miss me?

  Also one last thing:

  I thought that if a module contains component definitions which means it is swf should grow in size-> due to the use of modules. If the application contains the definitions of components would not be what it means the application swf will grow in size and then-> why should I use a module? To save the memory of bodies and images/fonts embeded in the module?

  Bearing also in mind that the skin of a component is also a class definition and I incorporate some large images in there, and I use this skin in 2 modules, wouldn't that require skin to be implemented-> big size of swf application and no module swf as it should?

  Please someone shed some light in my foggy mind

  Post edited by: FM_Flame

  Pretty much:

  public var foo:Object;

  public function runTest (): void

  {

  If (Application.application.foo is nothing)

  Application.application.foo = new SomeClass();

  on the other

  trace (test (application.application.foo));

  }

  If you click the first button, then the second, you should see a type

  incompatibility.

• Possible bug in custom components

  I think I found a bug when you use custom components. I have a customized TabNavigator which children containers are also custom components. To do this, I can not set properties on custom containers, it fails.
  Here is an example of how do:
  
  1. create a TabNavigator custom like this: (in this example I'll call her TabN)
  <? XML version = "1.0" encoding = "utf-8"? >
  "< mx:TabNavigator xmlns:mx = ' http://www.adobe.com/2006/mxml" > "
  < / mx:TabNavigator >
  As you can see, there nothing wrong with it, just a custom bar
  
  2 create a custom like this: (in this example, named reportGrid)
  "" < mx:HBox xmlns:mx = ' http://www.adobe.com/2006/mxml '
  < mx:DataGrid id = "telefonosDG" dataProvider = "{dataGridList}" width="100%"/ >
  < mx:Script >
  <! [CDATA]
  Import mx.collections.ArrayCollection;
  
  [Bindable]
  public var dataGridList: ArrayCollection collection;
  []] >
  < / mx:Script >
  < / mx:HBox >
  As you can see there's only a dataGrid whose dataProvider is an arrayCollection collection-related.
  
  3. in your application follow these steps:
  "" < mx:Application xmlns:mx = ' http://www.adobe.com/2006/mxml '
  xmlns:custom = "custom.*".
  creationComplete = "initialize ()" width = "100%" height = "100%" layout = "absolute" > "
  
  < mx:ArrayCollection id = "testList" / >
  < custom: TabN width = "100%" >
  < custom: reportGrid id = "marketing" dataGridList = "{testList}" width = "100%" height="100%"/ >
  < / custom: TabN >
  
  < mx:Script >
  <! [CDATA]
  private void inicializar(): void
  {
  var prod1:Object = {};
  var prod2:Object = {};
  prod1. Qty = 1;
  prod1. Index = 1;
  prod2. Qty = 2;
  prod2. Index = 2;
  testList.addItem (prod1);
  testList.addItem (prod2);
  }
  []] >
  < / mx:Script >
  < / mx:Application >
  
  In theory, when you change the testList these changes should appear in the DataGrid control, but he fails, the DataGrid stays empty.
  
  Now instead of using the customized TabNavigator (TabN) using a normal component < mx:TabNavigator > and see what is happening, it works perfectly fine, the DataGrid control is populated with the two elements that I added.
  
  SO, what's the problem here? Is this a bug?
  

  My friend uses the 2.0.154976 version and on that one, the bug has been fixed

• What are the parameters? How are Variables differenet? Why we can not use variables to pass data to one sequnece to another? What is the advantage to use parameters instead of Variables?

  Hi all

  I am new to TestStand. Still in the learning process.

  What are the parameters? How are Variables differenet? Why we can not use variables to pass data to one sequnece to another? What is the advantage to use parameters instead of Variables?

  Thanks in advance,

  LaVIEWan

  I'm sorry... I discovered that... its not at all possible to pass data to another sequence using variables... it must be through settings... once again I apologize for the display of such a stupid question

• Passing data between the component main enforcement through custom methods and custom

  Similar to what this article is talking about, I have a custom list that contains a list of names of State of the United States in chains. (Let's call this states.mxml) #comments http://www.boyzoid.com/blog/index.cfm/2006/11/22/Flex-Custom-Components-and-Custom-Methods
  
  I create an action script that is included in my states.mxml like < mx:Script source = "myScripts.as" / > so that I can call the method in mySpcripts.as
  
  Now, what I want to do is, whenever I click on an item in the list, I want this string is displayed on the Application of the hand (on a canvas or Panel) as a label.
  
  I don't know how I am supposed to refer to the canvas and wood, which lies on the main of the application of myScripts.as
  Is there a way to create an action script file where methods can reference components for the main application and the custom component file?
  
  Thank you

  this.parentApplication.canvas.label should do what you are looking for

• custom - components

  Hello
  I hope that it isn't something obvious... but I searched high and low for a benchmark decent to implement custom components.
  It is not critical, but I would like to place a set of codes < mx: states > in a custom component.
  Can anyone suggest it please if or how this is possible?
  
  It is important that I'm calling the new State of a VBox inside a TabNavigator?
  
  Also, while I'm here...
  I'm States okay - kind of... I get the new State (a form) to spend in the upper region of my VBox tab.
  BUT I want the form actually replace the datagrid control, which is the normal display mode when you click the tab.
  
  Thanks in advance...
  Chris
  
  

  Hello again...

  Eureka!
  I went to pages of search help 'parentApplication' in the discovery of the hierarchy.
  .. .came between Flex Applications > uses the container of the Application > object on the Application
  where I found the refernce to mx.core.UIComponent.parentDocument, then
  "You can use parentDocument.parentDocument to back up the tree of multiple documents.

  So, I replaced 'parentApplication' with 'parentDocument' in the file states_TaskMgr_addNew.mxml...

  ... and it worked.

  Thanks again for your help... it was a great experience.
  See you soon,.
  Chris

• How to pass data (more effective) autour

  Hello
  I wonder how to pass around large data around across the application.

  For example:
  1 data or data of my analog channels
  (I have a lot of screws that will process these data of waveform)
  Is it not wise to spend around analog continuous data?

  2. What if you want to process digital data?
  (I must treat these unique bits in several screws, for example,)
  security door bit, stop bit of emergency, must be treated as higher priority than screw
  input 1, selector, etc.).

  Or you have any suggestions, what type of data I should use. I have a
  global impression screw actually write these digital data in a file, then
  These files are passed around?

  3. is there a mechanism that pass around data in memory, NOT in the files?

  By far, the way the more effiecient to pass data autour is a thread.  If you are really worried about memory, then you must avoid the connection of the wire that he holds the large amount of data.  This could mean making your processes in series (one at a time) passing the data of one Subvi to another via the controls and indicators and the connector pane.

• Pass data to Image update Subvi VI main

  I try to get under VI containing a for loop to pass data to an indicator on the main VI update. I followed this explanation...

  http://digital.NI.com/public.nsf/allkb/0F4EA104660C0AF38625726F0069B27E

  .. .and am able reproduce the example with a digital command, but I was not able to extend the example to an indicator of image output. I suspect that I use the control bad, Refnum reference or property. Can anyone suggest corrections?

  Details:
  I use a control reference [line] to a [Picture] indicator of my main VI [Center of manufacturing] to the Subvi [SUB mask display].

  I placed a Refnum control on the front of the sub - VI, he linked to a property on the block schema node, selected the property "Value" and hooked up the output of the image of a VI IMAQ to this property.

  If 'Run of Images' on the sub VI is set to FALSE, a static image 'test0.jpg' must be returned to the main VI. If 'Run Images' is set to TRUE, a loop is supposed to pass 'test0.jpg', "test1.jpg", etc. to the main VI at regular intervals. Instead, the indicator Image is empty.

  Hi MaryamAli,

  I think you are doing everything correctly but you are having your image inside the Subvi so the will of image ever seen in the main VI. Try to remove the IMAQ dispose VI in your TRUE and FALSE cases and see if it works.

  Tim O

• Pass data to another loop event loop

  I'm trying to find a simple way to pass data to a loop of events for use elsewhere.  Could someone explain to me why my example below block (code attached)?  I feel that I must be missing something simple.  Also, I would rather avoid queues, if possible, because they seem unnecessarily complex.  Thanks for your help!

  

  The second loop will not run until the first is done. Use the performance highlighting and you can see. You can use a local or a vi to register the data in. Here's a quick example with the help of a local.

• How to pass data to LabVIEW teststand Hex

  Hello

  Is it possible to pass data Hex Teststand to a LabView VI.

  In the column 'Type' of the Module tab on the stage, I only have the options "ASCII" or "binary string".

  What I need to change my VI to take the hex data, or can I change the Type of TestStand so that I can enter the Hex data

  When I enter the Hex data directly in the VI, it works fine.

  Thank you

  Sound advice from Omar! If you decide to follow this method, here's a useful KB...

  How to convert between hexadecimal and ASCII in LabVIEW

  http://digital.NI.com/public.nsf/allkb/894CF5FE064971BF8625758400014993?OpenDocument

• Core 1 page 9-4: "...". pass data between parallel patterns... »

  «.. . If allows you to pass data between parallel block diagrams... son"this can be done?

  They mean transfers data between parallel loops/structures?

  The question is a Hue. It is not parallel, using wires. Two loops are not connected is perhaps parallel. We read your table of contents it a game of guessing on the sentence of your thread. Maybe if you get into the details.

• Pass data between panels

  I have a digital slide on a Panel. When I move the cursor, I need the value update on another Panel.

  How can I do this?

  The two panels are loaded as a senior-level windows.

  It seems that I read something on the use of queues to pass data between the panels, but I can't seem to find where I read that.

  A basic concept that differentiate the CVI to other languages, it's that there is no relationship between a sign and a specific source file. I mean, you do not need to put a sign functions in a specific source file: they can be spread over multiple sources; Conversely, you might have a source only that collects reminders for all panels of files in your application. What readers recall execution are Panel handles and control ID. (One effect of this paradigm is, you might have a reminder installed on controls on different panels).

  For this reason, there is no problem by putting the cursor callback in panel1.c. In addition, you can call the file source in a different way.

  Arriving at the base of your problem, a DAQ multithreaded application is really different from a UI single-threaded application.

  Put the functions of data acquisition in a separate thread can be beneficial for your application, because they are not likely to suffer user interface events.

  CVI provides also the different methods of transmission of data between threads. the most powerful in data acquisition applications is probably a Thread Safe queue.

  I suggest you look at Programmer's Reference > chapter of the creating multithreaded Applications to aid, where the basic principles of programming are explained multithreaded and information are provided on all instruments CVI includes.

  If you want to discuss on this scenario, I suggest yu to start a new thread, as it has nothing to do with the original question with which you started this discussion.

• Problem to adjust the data using the algorithm of lev - mar...

  Hello

  I'm a casual user of LV, and I need signal level using a non-linear custom model. The signal is basically a decay of exp (order 1) with a continuous component, so it's pretty simple.

  When I apply the routine of Lev - Mar's non-linear editing, I've always had the famous "an exception has occurred in externally called by a function of the call library node. This could have corrupted memory of LabView. Save any work., etc.. VIwas stopped to node "" a call to "NI_AALPro.lvlib: Real - Decomposition.vi of SWINE vesicular disease.

  The thing is I've already adapted successfully some basic (linear model) data using this form of Lev - Mar non-linear... but it won't work this time... and I don't see why.

  Could you watch my VI and model definition and tell me what I need to improve, and what might cause the problem? The main VI (TPV_Fit_ExpDec1_v1.0.vi) open a text file that contains my data (3 columns: time, a pulse (not useful for editing), the signal to fit). At the beginning, I isolate the part of the signal that matches t > = 0, because it is where begins the exponential decay. So I want just to get the part. I join the main VI, a txt file containing typical data, and made the VI that define the model to the lev-mark function.

  I would appreciate your help and suggestions!

  Thank you very much in advance.

  MY VERSION of LABVIEW is the 8.2

  JB

  Here's a quick rewrite. You should ALWAYS figure the curve for the initial parameter estimates see if they are in the ballpark. Rather than modify the data, you could just put the weight to zero for negatvie x. see if it works better.

  

• pass data from childCardDone to a textfield in QML?

  I have a card camera call function that responds with the path of the image once a picture is registered using the childCardDone function.  I have no idea how to pass data from c ++ to qml.  I know that during the passage of the QML for C++ database, you set a QString & something.  How can I do the reverse?

  Here's my CPP code:

  void App::childCardDone(const bb::system::CardDoneMessage &message)
  {
      if (message.reason() == "done")
  
  //      Need the message.data() info in my QML
       message.data();
  
      qDebug() << message.reason() << "\n";
      qDebug() << message.dataType() << "\n";
      qDebug() << message.data() << "\n";
  }
  
          public slots:
          void childCardDone(const bb::system::CardDoneMessage &message);
  

  and I just want to get the value of message.data () into a textfield label in QML:

  Label{
  id: capturedFilePath
  text: <>
  }
  

  All help is appreciated and will be loved and accepted as a solution if it works.

  Thanks in advance.

  For use in your function you will need to decalre in the header.

  In the header to declare,

  AbstractPane * root;

  Then, change

  AbstractPane * root = qml->() createRootObject;

  TO

  root = qml-> createRootObject();