Null reference close behavior

Similar Questions

• object on a simple object null reference

  Turn it on some of the projects currently working on.

  So I have this

  main.conductor.gotoAndStop (4);

  get the "#1009: cannot access a property or method of an object. null reference" error.

  Its scope, I think. the same framework and not at course time am damned a subject are right.

  frustrating it is like script101 of the action and can't make it work.

  Click the object on the stage that you think is key (to select).  take a screenshot showing the chronology, the object on stage and the properties panel.  Attach the screen shot here.

• Throw the list "cannot access a property or method of an object. null reference" during the scrolling of the white spaces

  Follow these steps:

     import flash.display.Sprite;
  
      import qnx.fuse.ui.listClasses.List;
      import qnx.ui.data.DataProvider;
  
      [SWF(height="1024", width="600", frameRate="30", BackgroundColor="#000000")]
      public class test3 extends Sprite
      {
          public function test3()
          {
              var l:List = new List();
              l.dataProvider = new DataProvider([{label:1},{label:2}]);
              l.setPosition(200,200);
              l.width = 200;
              l.height = 200;
              addChild(l);
          }
      }
  

  And run the application.

  Point the finger just below the last line of the list, and then drag upward or downward.

  You get this:

  TypeError: Error #1009: Cannot access a property or method of a null object reference.
      at qnx.fuse.ui.listClasses::List/resetCellState()[E:\hudson\workspace\GR2_0_0_AIR_SDK_API\src\qnxui\src\qnx\fuse\ui\listClasses\List.as:2532]
      at qnx.fuse.ui.listClasses::List/deselectCellDown()[E:\hudson\workspace\GR2_0_0_AIR_SDK_API\src\qnxui\src\qnx\fuse\ui\listClasses\List.as:2337]
      at qnx.fuse.ui.listClasses::List/scrollMouseMove()[E:\hudson\workspace\GR2_0_0_AIR_SDK_API\src\qnxui\src\qnx\fuse\ui\listClasses\List.as:2349]
  

  How I not imprison it? Is this a bug of the qnx.fuse.up.listClasses.List component?

  After typing this post, I went back to the SDK download page and noticed there is a new SDK available (as dated February 3, 2012) 2.0.0. I used the previous version dated SDK Date January 16, 2012.

  So I advanced and upgraded to the latest version of the SDK, and this error no longer occurs.

  It must have been a bug.

  So I solved (kind of) my problem... Kudos to me... ha!

• PhoneListener.callConnected problem - null reference

  Hello

  When this event is called, my references are null (!) ... is not the first time it happens to me, but I didn't know why...

  Everyone please?

  where are your references?

  for your understanding:

  the earpiece of the phone runs within the application phone RIM. This means that the static variables of your own instance of the application are not available there.

  It also means that the long treatment within the listener kills the native application for phone (worst case, but -it is restarted automatically by a watchdog process).

  for references in the earpiece of the phone, you can use the runtime store (it is available in different contexts).

  to handle calls to the listener, I suggest using world events to return the context of your application.

• object null reference problem

  Hello all and first of all thanks for reading,

  My problem is this, at my request, I have a textfield located at,.

  This.wholesite_mc.explan_mc.e_mc.cap_talk_txt. Text

  now, normally I can access this text and change it whenever I like using the

  MovieClip (parent).e_mc.cap_talk_txt.text = ""

  and so on

  problem is that I have a help file, which is located in the library and added using addchild().

  When you click on the help icon this function runs

  function helpvisit (): void {}
  btn_help1_mc. Visible = false;
  btn_help1_mc.btn_back_mc.mouseChildren = false;
  btn_help1_mc.btn_replay_mc.mouseChildren = false;
  btn_help1_mc.btn_back_mc.buttonMode = true;
  btn_help1_mc.btn_replay_mc.buttonMode = true;
  btn_help1_mc.btn_back_mc.addEventListener (MouseEvent.CLICK, bclicked);
  btn_help1_mc.btn_replay_mc.addEventListener (MouseEvent.CLICK, rclicked);
  btn_help1_mc.btn_back_mc.addEventListener (MouseEvent.MOUSE_OUT, fighting);
  btn_help1_mc.btn_back_mc.addEventListener (MouseEvent.MOUSE_OVER, bover);
  btn_help1_mc.btn_replay_mc.addEventListener (MouseEvent.MOUSE_OUT, rout);
  btn_help1_mc.btn_replay_mc.addEventListener (MouseEvent.MOUSE_OVER, rover);

  MovieClip (this.parent).e_mc.menubar_full_mc.visible = false;
  jigh10_mc.gotoAndPlay (2);
  MovieClip (this.parent).e_mc.cap_talk_txt.text = "";
  MovieClip (this.parent).e_mc.cap_talk_txt.text = "allows to count the bombs on this piece together!"
  }

  fine so far

  inside the MC aid, there is a clip called jigh10_mc

  and on some images in this example, 247

  I have the following

  MovieClip (parent.parent).e_mc.cap_talk_txt.text = "number of bombs on this piece is ten, you see where it fits on the left?

  Now whenever I run it, everything's fine except that I get an error in the output window saying

  TypeError: Error #1009: cannot access a property or method of a null object reference.

  at::jigh10_mc_92/frame247() [wholesite3_fla.jigh10_mc_92::frame247:1] wholesite3_fla

  I would appreciate any information, that you may have on how to solve this problem.

  ive tried to use functions and counters in jigh10_mc that point to the parent who then replaces the text but I still got the error

  the code seems to run even if I'm not in the help section, as lightning will complain of the same mistake while I'm game section

  Thanks in advance

  fonzio

  When you 'addChild (helpFile)' you can try:

  helpFile.addEventListener (Event.ADDED_TO_STAGE, added);

  added function (e: Event) {}

  trace ("I just added myself to the scene and now I can meet the functions")

  helpFile.removeEventListener (Event.ADDED_TO_STAGE, added);

  do other things now

  }

• Error #1009: object null reference

  Hello

  Im trying to complete a small project im working on and that's the only bit that I struggle with. I have an image that follows the mouse and reveals a hidden below image. When the user clicks on the screen, he plays the rest of the film.

  The error message is: TypeError: Error #1009: cannot access a property or method of a null object reference.
  at newmovie_fla::MainTimeline/moveMask()

  The code I used is:

  
  

  Stop()

  Curtains.Mask = light;
  light.cacheAsBitmap = true;
  curtains.cacheAsBitmap = true;

  light.addEventListener (Event.ENTER_FRAME, moveMask);

  function moveMask(e:Event):void

  {
  Light.y = mouseY;
  Light.x = mouseX;
  
  }
  curtains.addEventListener (MouseEvent.CLICK, buttonClick);
  function buttonClick(event:MouseEvent):void {}
  gotoAndPlay (3);
  }

  I checked the code and the line that is the origin of the dispute is:

  
  

  light.addEventListener (Event.ENTER_FRAME, moveMask);

  Does anyone have any ideas on how I can fix this?

  I restored some of what you based on what I could imagine him, and I guess that the problem arises when you click on the curtains.  If this is the case, you need to remove the event listener in the curtains click event handler...

  light.removeEventListener (Event.ENTER_FRAME, moveMask);

• NULL REFERENCE ERROR

  I have a movieclip that is playing a game when it's the button is clicked. I have the code in my "Home" button, which removes the game from the scene, if you click on it after you start a game. However if I click on my home button (or any button with my deletion indicator) without playing the game first I get:
  
  TypeError: Error #1009: cannot access a property or method of a null object reference.
  at mikesPlayhouse_fla::MainTimeline/onHomeClick()
  
  How can I fix it? My code to remove the game follows. Thank you!

  Oh, I think I understand your problem. If I understand you right, your problem is:

  (1) you run the game once, and it creates puzzleBoardClip and holder
  (2) you click the home button, and it removes puzzleBoardClip and holder successfully
  (3) you click the home button again and it fails.

  If that is correct, I believe that the desired correction is simply to puzzleBoardClip and door on a null value when you click the home button. for example

  function onGamesClick(event:MouseEvent):void {}
  this.gotoAndPlay ('games');
  SoundMixer.stopAll ();

  If (puzzleBoardClip! = null) {}
  removeChild (puzzleBoardClip);
  puzzleBoardClip = null;
  }
  If (owner! = null) {}
  removeChild (holder);
  owner = null;
  }

  }

  In this way when you click on it a second time, conditional statements inside the IF statements (if (puzzleBoardClip! = null) may be distorted and he won't try again to remove the clips.)

  Note that you should show these null instances in this way _anyways_ so that the garbage collector frees the memory taken up by the puzzleBoardClip and support when they are no longer needed.

• The definition of dataProvider programmatically causes null reference

  I am trying to bind a drop-down list box to a list of countries via a HTTPService which returns xml code. If I set the dataProvider and declaratively labelField properties in the mxml, then it works fine. However, if I try to set it programmatically in the method that is called after the called HTTPService returns, then I get "TypeError: Error #1009: cannot access a property or method of a null object reference."
  
  Here is the dataServiceResult method:
  
  [Bindable]
  private var _lookupData:XML;
  
  public void dataServiceResult(event:ResultEvent):void
  {
  _lookupData = event.result as XML;
  
  cboCountry.dataProvider = _lookupData.countries.country;
  cboCountry.labelField = "@name";
  }
  
  This causes the above error. However, if I have the last two lines of the method in comment and change the combo box return to resemble what follows, then it works fine:
  
  < mx:ComboBox id = "cboCountry" styleName = "RequiredFieldLabel".
  dataProvider = "{_lookupData.countries.country}" labelField="@name" "
  change = "countrySelected ()" >
  < / mx:ComboBox >
  
  Any ideas? Declarative binding will work in this particular situation, but I have several other cases where I need binding programmatically to xml, so I need to get this script working. Thanks in advance for any help!
  
  Aaron

  The simplest way around this is to link the labelField and dataProvider to a variable or a get/set accessor, and then set the variables (or the Set accessor) in the result handler.

  What is happening is that the combo box has not been instantiated in the place in which you try to set the values, so the null pointer.

• Exception System.Null reference:

  I get this error message all day. It is interrupting my work and I need to fix this problem. Can someone tell me what this means and what I have to do to fix it?

  System.NullReferenceException: Object Reference not set to an instance of an object.

  at CameraApplicationLaunchPadExe.RegistryMonitor.TimerTick (Object source, ElapsedEventArgs e)

  At your service COMPUTER to communicate with the author of CameraApplicationLaunchPadExe. It's a bug in the program.

  Given this file name is not common, it can be an internal software created by the service of your software.

  If your IT do not know who is the author, search on your hard drive for the file name, then check its properties. There is usually an editor there.

• Application of close behaviors?

  Currently, my application has a GUI thread and a background thread that listens on the server. Currently, I am lauching the listener server from the GUI thread (and then send the GUI app in the background). But my problem is that, if the user closes the application GUI, the thread of the server stops.

  I would like to the thread of the server to continue even if the user exit the graphical interface, it is possible for blackberry? For example, to override the shutdownApp() method?

  In this case, I would substitute close() on your 'home' screen so that he calls only

  UiApplication.getUiApplication () .requestbackground ();

  While your application does not stop, but as the user is concerned, he disappeared.

  Also change the place that deliberately call System, exit () to do the same.

  You can use things like onObscured() and onExposed() on the screens and deactivate() in enforcement or activate() to detect movements to and from background and to take all appropriate measures, for example, to stop any automatic update on the screen do you is not necessary if no one is watching the screen!

  If you call System.exit (.), or it is called for you when you close your last screen, you don't have the choice - your son will be arrested.  There is nothing you can do about it, and the only options to get around that are much more painful than the establishment you don't deliberately or inadvertently call system.exit().

  I'm confused by your suggestion that you have a GUI Thread?  Do you really mean a GUI Thread you create?  You don't usually have one of them.

  In addition, has just been raised, this is your first Thread... Welcome!

• Null reference during the passage of the combobox as an argument

  I have a function that takes a ComboBox as a parameter and then fills.  This works fine on 3 of my comboboxes, but not on others.  For all others, he says they are null.

  Function code is here:

  protected void PopulateDateDropdowns (): void
  {
  PopulateMonths (cmbTDCTSinceMM);
  PopulateDays (cmbTDCTSinceDD);
  PopulateYears (cmbTDCTSinceYYYY);
  
  PopulateMonths (cmbEmpStartDateMM);
  PopulateDays (cmbEmpStartDateDD);
  PopulateYears (cmbEmpStartDateYYYY);

  PopulateMonths (cmbJEmpStartDateMM);
  PopulateDays (cmbJEmpStartDateDD);
  PopulateYears (cmbJEmpStartDateYYYY);
  }
  
  private void PopulateDays (cb:spark.components.ComboBox): void
  {
  var i: int;
  cb.dataProvider = new ArrayList();
  for (i = 1; i < 32; i ++)
  {
  cb.dataProvider.addItem (i);
  }
  }
  
  private void PopulateMonths (cb:spark.components.ComboBox): void
  {
  cb.dataProvider = new ArrayList();
  cb.dataProvider.addItem ("Jan");
  cb.dataProvider.addItem ("Feb");
  cb.dataProvider.addItem ("Mar");
  cb.dataProvider.addItem ("Apr");
  cb.dataProvider.addItem("May");
  cb.dataProvider.addItem ("may");
  cb.dataProvider.addItem ("July");
  cb.dataProvider.addItem ("Aug");
  cb.dataProvider.addItem ("MS");
  cb.dataProvider.addItem ("Oct");
  cb.dataProvider.addItem ("Nov");
  cb.dataProvider.addItem ("Dec");
  }
  
  private void PopulateYears (cb:spark.components.ComboBox): void
  {
  var i: int;
  var maxYear:int = new Date () .getFullYear () - 18;
  cb.dataProvider = new ArrayList();
  
  for (i = 1900; i < maxYear; i ++)
  {
  cb.dataProvider.addItem (i);
  }
  }

  Declaration of the comboboxes that fail is here:

  < mx:FormItem label = "Start Date:" direction = "horizontal" >
  < s:ComboBox id = "cmbEmpStartDateMM" width = "60" / >
  < s:ComboBox id = "cmbEmpStartDateDD" width = "60" / >
  < s:ComboBox id = "cmbEmpStartDateYYYY" width = "100" / >
  < / mx:FormItem >

  The only difference between these and those who work, is that they are declared within a distinct form and canvas.  But I thought the script was overall for the elements of the page.

  Ultimately when you use multiple views with their own playground, do not assume they are available, even after loading the application. That's why you should use data binding to power the data for them and not worry.

• Custom component... Null object reference

  I'm having a hard time understanding how to solve a problem, I have met in my flex application and I hope someone here can help me out! I will try and provide a very basic example that illustrates my problem...

  <! - Main.mxml - >

  " < = xmlns:mx mx:Application ' http://www.Adobe.com/2006/MXML "layout ="vertical"initialize =" init () "> "

  < mx:Script >
  <! [CDATA]

  private function init (): void {}

  I have a call here that connects to a server of clodfusion by a remote object that returns a user object

  }

  []] >
  < / mx:Script >

  Then, I call a component customized which manages permissions for my application.  I pass on the user object in the custom component

  < user comp: permissions = "{user}" / >

  < / mx:Application >

  <! - Permissions.mxml - >

  " < = xmlns:mx mx:VBox ' http://www.Adobe.com/2006/MXML "creationComplete ="init ()">

  < mx:Script >
  <! [CDATA]

  Basically, this function is triggered and gets some info that depends on the user loged in

  private function init (): void {}

  svc.getSomething (user. PKEY);

  }

  < / mx:Script >

  < / mx:VBox >

  So the problem is that my call to the main application takes a few seconds to run and as the client component is processed before the entire purpose of the use is returned I get the error "object Null Reference '...  How can I make sure that the user object has been created and returned prior to use in my custom components?

  Thank you

  Probably the error will disappear if you create an empty instance of the VO of the user.

• find the memory leak when switching from Teststand object reference to vi

  I use Teststand to call labview vi and col ThisContext sequence to vi as object reference, but if I just completed this step and I can find the memory to help keep more, how can I avoid leaks memory inside the vi.

  See my vi, is displaying an interface message user.

  

  You should use a node reference close to close the references that you get after an invoke. In the code below, you should be able to close the references that you get the following:

  AsPropertyObject

  Thread

  Close these two references, once you're done with them.

  Also make sure you have turned off the collection of results of your sequence or you will use memory constantly to the results of the stage.

  Hope this helps,

  -Doug

• The reference must be closed on a reading-file error or not?

  Dear users,

  When I read a file, a reference is created one should close, when no longer used, should I? Here is a minimal example to my next serious question: should I close the benchmark on reading-file error or not? Is there a created in the case of "the file does not exist"?

   

  See you soon,.

  No, when used in this way, the references created by the file read and write functions should not be closed - thought that he would have no negative effect if you did.

  In addition, you do not want or need the structure case around a reference close the function.

  Mike...

• closing references - what

  Hello

  I have a small question on the fence of the references.

  When writing some programs I open usually refers to a single store location in a shift register or fgv and the usewhen I need as in case 1. Then I close the reference to the output of the application so leak memory will not happen.

  I wonder why the case 2 works fine. I opened reference used and then closed. So property where I write 1 shouldn't return error?

  Implicit references close not really until the owner VI is closed.  To close an implicit reference won't hurt.  Implicit references to the same control will use the same reference.