PhoneListener.callConnected problem - null reference

Similar Questions

• Null reference close behavior

  Hello

  I have a question about the behavior of the reference 'close' when you try to close a Null reference.  LabVIEW which will examine and pass or it will produce an error?  I also read in the 'help' that you can give a table of references and it close all.  However, what happens if one of the Ref table is Null?  Is this all closes the actual Ref and continue with an error, or it does not work as a passing beam to loop around the cluster of error in the shift register thus preventing to close any other Ref?  I just want to test the code to answer my own question, but as annoying as it is the case, I'm not entirely sure if he sent a white ref is the same as sending a Null Ref.  You can answer that one as well if you wish.  Thank you.

  Looks like it will produce an error if you enter a null reference and that just sent some kind of reference constant that you did not actually open is indeed zero. If you try to close a table of references, it seems that he is trying to close between them, even if it is a null in the Middle reference.

  

• 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.

• 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

  }

• 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!

• 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.

• Problems with references to cRIO as startupApp

  I am having trouble with my programs that run as starting applications on of different cRIO.

  The problem is that it takes too long to load correctly references (or load at all).

  In the attached screenshot, there are two tabs that I put the State enabled on. Page 1 is to be set as 'disabled and grayed out' and page 2 of "enabled."

  The upper part shows the reference pages directly and update tabs. This does not, as the reference table is empty.

  The lower expected the reference table to become a zero table. After a while, this happens and the while loop stops.

  The right-hand side of the screenshot is from the web server runs the program. When I press Start on my computer (but continues running on the cRIO), this is not a problem.

  For larger programs, it is very difficult to detect if the references are updated or not. Is there a method to wait until everything is ready before that code runs?

  This isn't. The problem you see is because the remote façade connects to your VI already running. Connection to the front panel remote "to not start" the VI - it's a window in a VI that is already running. For this reason, the property nodes that have been put forward that the client connects do not appear (that is, they are reset to zero by default) in the remote control Viewer.

  What is described here: functionality not supported in the visualization and control remote facades

• problem of reference to shift files that pass

  Hi, I have encountered a few problems when I use the shift register to store the file reference, please refer to the attachment.

  I want to implent the function as every hour a new file would be create and close the file. but the narrow file.vi, source of such error reported error message is cannot close the file. other parties in the diagarm works well.

  You test this VI alone or in a Subvi called?  LabVIEW automatically closes the reference of the file once the appellant of high level stops, even if you do not close this code.  The Ref info will remain in the register shift, but it is no longer valid.  That means he spends not a Ref test but close file cannot use it.  I threw a loop around your code to make it work (as if it were a Subvi) and everything worked.

• 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.

• A mysterious problem Null ~.

  Hey guys, it's Xev.

  I have a question null mysterious. Well, it's mysterious to me because I do not understand why it's happening.

  First of all, here is the table to create with the data from the sample, I learned to do the first.

  After that, I have provided the table that I am inserting while execution of the main program and I'll post the main pl/sql program after that so you can see what I'm talking about.

  CREATE TABLE 'SMEG '. "" FND_IT ".
  (VARCHAR2 (50 BYTE) "TESTCOL",
  'COMMENTS' VARCHAR2 (60 BYTE)
  );
  

  Insert into FND_IT (TESTCOL, COMMENTS) values ("abcde", null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('12345 ', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('1a4A5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('a 12, 45', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ("12aBC", null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ("12abc", null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('12ab5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('12aa5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('12AB5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ("ABCDE", null);
  Insert into FND_IT (TESTCOL, COMMENTS) values (123-5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values (' 12.45 ', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('1a4b5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values (1 3 5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values (1, 45', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values (1, 5', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ("a b c d", null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('a b c d e', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('e a', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Steven', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Stephen', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('111.222.3333', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('222.333.4444', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('333.444.5555', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ('abcdefabcdefabcxyz', null);
  Insert into FND_IT (TESTCOL, COMMENTS) values ("77777777 ZZ", "eight figures and then 2 alpha suffix");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('77777777',' eight consecutive digits");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('ZZ 77777777', 2 characters at the front, a space, and then eight-digit.");
  Insert into FND_IT (TESTCOL, COMMENTS) values (77-777-7777', 'up with dashes, looks like an ssn!');
  Insert into FND_IT (TESTCOL, COMMENTS) values ('777777777',' nine consecutive digits. ») ;
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Z777777777777', ' an alpha and then 12 digits");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('7777777777777',' thirteen consecutive digits. ») ;
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Z7777777', 'a consecutive 7 alpha');
  Insert into FND_IT (TESTCOL, COMMENTS) values (' ZZZ 777777777', ' 3 letters, the digits of the nine space ");
  Insert into FND_IT (TESTCOL, COMMENTS) values (' ' ZZ 777777777 ', 'nine numbers and suffix alpha space then 1 then 2.');
  Insert into FND_IT (TESTCOL, COMMENTS) values (' ZZ7-77-7777', 2 alpha 1 - 2 dig - dig dig 4' ");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Z77777777777' ', ' digits 1 alpha 11 ");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('Z777777' ', ' alpha, 6 consecutive 1 ");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('77777777 ZZZZ', 'eight-digit 1 space 4 alpha suffix');
  Insert into FND_IT (TESTCOL, COMMENTS) values (' ZZZZ 77777777', ' space prefix alpha 4, 8 digit ");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('ZZ77777777' ', ' 2 consecutive alpha 8-digit ");
  Insert into FND_IT (TESTCOL, COMMENTS) values ('ZZZ777777' ', ' alpha, 6 consecutive 3 ");

  This forum that the PL/SQL table main progam insert while it works...

  CREATE TABLE DYNAMIC_COUNTS

  (VARCHAR2 (30 BYTE) "T_OWNER",

  VARCHAR2 (30 BYTE) "T_TABLE_NAME."

  VARCHAR2 (30 BYTE) "T_COLUMN_NAME."

  NUMBER OF 'FND_GOVIDS '.

  );

  And here's the main pl/sqlprogram, I have hard-coded so that it can search just a FND_IT table, so you can focus just on why you get null lines inserted into the DYNAMIC_COUNTS table.

  I need to insert the ranks of all the fields populated by the variable. It does all this is now, here are the results of table selecing 'DYNAMIC_COUNTS', after the program has been run.

  Here is the program:

  Set serveroutput size unlimited
  run the DBMS_OUTPUT. ACTIVATE (buffer_size = > NULL);

  ------------------------------------------------------------------------------------------------------------------------
  DECLARE
  FND_LOOK INTEGER.
  ------------------------------------------------------------------------------------------------------------------------
  BEGIN
  FOR t IN (SELECT master, table_name, column_name
  From all_tab_columns
  WHERE table_name = ("FND_IT"))
  -Owner WHERE = upper ('& SCHEMA_NAME'))
  
  ------------------------------------------------------------------------------------------------------------------------
  LOOP
  BEGIN
  EXECUTE IMMEDIATE ' with an ACE (select case when REGEXP_LIKE (' | t.column_name |))
  
  -Search this 6-digit Alpha
  ', "^ ([[: alpha:]] |) [[: alpha:]] ({3}) [0-9] {6} $")

  
  then "match"
  another "no matches found" end up as output of ' | t.Owner | '.' || t.table_name | ')
  Select count (*) in a where a.output = "Match Found" clause '

  IN FND_LOOK;
  

  / * Table for later insertion, the current issue is that's not insert row by row
  and inside of them, null values * /.

  
  IF FND_LOOK > 0 THEN
  insert into smeg.dynamic_counts (T_OWNER) values (t.owner);
  insert into smeg.dynamic_counts (T_TABLE_NAME) values (t.table_name);
  insert into smeg.dynamic_counts (T_COLUMN_NAME) values (t.column_name);
  insert into smeg.dynamic_counts (fnd_govids) values (FND_LOOK);

  END IF;

  
  
  / * dbms_output * /.

  IF FND_LOOK > 0 THEN

  Dbms_output.put_line (t.owner |) '.' || t.table_name | ' ' || t.column_name | ' ' || FND_LOOK);

  
  END IF;
  
  ------------------------------------------------------------------------------------------------------------------------
  / * Exception Handeling * /.

  
  EXCEPTION
  WHILE OTHERS
  THEN
  Dbms_output.put_line)
  "Generic error".
  || t.column_name
  || "from".
  || t.Owner
  || '.'
  || t.table_name);
  END;
  END LOOP;
  END;
  /

  OK, after the short program and you go and do a select * from DYNAMIC_COUNTS, this is what you will see...

  T_OWNER T_TABLE_NAME T_COLUMN_NAME FND_LOOK

  Null null null SMEG

  NULL null null FND_IT

  NULL null null TESTCOL

  null            null                      null                          2

  That's the problem, I need to have this information all in one rank, not spread out on all these lines that you see above. Where I'm going wrong?

  Is it the way I do the insert statement? What must I do different?

  Thank you

  Xev.

  Try this

  DECLARE

  FND_LOOK INTEGER.

  v_tabreccnt NUMBER; --Also added

  v_loopcnt NUMBER: = 0; --Also added

  v_flag NUMBER: = 1; --Also added

  ------------------------------------------------------------------------------------------------------------------------

  BEGIN

  SELECT COUNT (1) IN the v_tabreccnt - added

  From all_tab_columns

  WHERE table_name = 'FND_IT ';

  FOR t IN (SELECT master, table_name, column_name

  From all_tab_columns

  WHERE table_name = 'FND_IT')

  -Owner where = upper ('& SCHEMA_NAME'))

  ------------------------------------------------------------------------------------------------------------------------

  LOOP

  BEGIN

  EXECUTE IMMEDIATE ' with an ACE (select case when REGEXP_LIKE (' | t.column_name |))

  -Search this 6-digit Alpha

  ', "^ ([[: alpha:]] |) [[: alpha:]] ({3}) [0-9] {6} $")

  then "match"

  another "no matches found" end up as output of ' | t.Owner | '.' || t.table_name | ')

  Select count (*) in a where a.output = "Match Found" clause '

  IN FND_LOOK;

  / * Table for later insertion, the current issue is that's not insert row by row

  and inside of them, null values * /.

  v_loopcnt: = v_loopcnt + 1; --Also added

  IF FND_LOOK > 0 THEN

  v_flag: = FND_LOOK;-modified logic

  END IF;

  IF (v_loopcnt = v_tabreccnt) AND (v_flag > 0) THEN

  insert into dynamic_counts (T_TABLE_NAME, T_COLUMN_NAME, T_OWNER, fnd_govids) values (t.owner, t.table_name, t.column_name, v_flag); --Also changed

  END IF;

  / * dbms_output * /.

  IF FND_LOOK > 0 THEN

  Dbms_output.put_line (t.owner |) '.' || t.table_name | ' ' || t.column_name | ' ' || FND_LOOK);

  END IF;

  ------------------------------------------------------------------------------------------------------------------------

  / * Exception Handeling * /.

  EXCEPTION

  WHILE OTHERS

  THEN

  Dbms_output.put_line)

  "Generic error".

  || t.column_name

  || "from".

  || t.Owner

  || '.'

  || t.table_name);

  END;

  END LOOP;

  END;

  /

• problems of reference onPlayStatus Complete and scene

  Recently, I went from a to an object FLVPlayer ordinary flash.media.Video to read the VOD rtsp stream.  But for the event "play.complete" at work I had to jump through hoops for days.  This code works well, but I still have questions.
  
  Issue 1. to get the stream to throw 'complete' you need you a class CustomClient which defines onPlayStatus
  
  VIDEO1 is already on the scene
  on the main timeline
  Stream = new NetStream (connection);
  stream.client = new CustomClient();
  VIDEO1.attachNetStream (Stream);
  Stream.Play ("MP4:MyVideo.MP4");
  
  Then set in the CustomClient.as class
  public void onPlayStatus(info:Object):void {}
  trace ("onPlayStatus: code:" + info.code); output NetStream.Play.Complete
  }
  
  Question:  In fact, which calls the method onPlayStatus and intersection of information: object? What is the NetStream?  If the flow already knows the name of my method, why isn't she defined in the NetStream class first?   I do not understand the purpose of the allocation stream.client
  
  Issue 2  The CustomClient class has no access to the maintimeline.

  On the maintimeline, I define a variable and a function to manage a playlist
  
  main timeline
  var nowPlaying:Number = 0;
  function change_video (playListNum:Number) {}
  play another video fron the playListArray
  }
  
  But when the CustomClient class call the complete method the maintimeline elements are not available
  class CustomClient
  public void onPlayStatus(info:Object):void {}
  change_video(nowPlaying++);
  }
  1120: access of undefined property nowPlaying
  1180: call to a method may be undefined change_video
  
  I tried to use the scene, but the scene is also not defined in the class
  trace (stage.nowPlaying);
  1119: access of a nowPlaying property may be undefined, through a reference with static type flash.display:Stage
  
  Finally, a reference to the stage of the maintimeline stayed to the CustomClient class
  from the main time line
  Stream.client = new CustomClient (this.stage);
  
  class constructor
  private var _main.
  public void CustomClient (several) {}
  _main = _stage.getChildAt (0);  first scene is mainTimeline
  trace ("_main:" + _main); ' returns ' _main: [object MainTimeline] ".
  }
  public void onPlayStatus(info:Object):void {}
  _main.change_video (_main.nowPlaying);
  } / / This works!
  
  Note that several in itself is useless.  It contains none of your business.  _stage.FirstChild is the maintimeline
  
  Questions:  Why are they not variables and functions available for the class below them? (I'm new to OOP)
  Why the scene is not accessible within a class
  Why things not available on the scene?  You must use stage.firstChild to access the schedule.  I have never seen it mentioned in any of the AS3 documentation.

  Thanks for your replies

  Ted

  You can have complicated things for yourself. With AS2, customer of the stream was implied to be 'this' and so things like onMetaData events and others, could be trapped by the features that are right there next to your other routines. If your video creation AS3 lines are in the maintimeline, you could say:

  Stream.client = this;

  and then the functions could also be on the maintimeline, where they would have access to everything you mentioned.

  For the general problem of a class to know the maintimeline, you can either pass in a reference when you create the class, for example, if you have a customer class customized to manage your maintimeline flow, you might say:

  Stream.client = new CustomClient (this);

  and in the CustomClient class, you would store stores the reference passed in. Or you can most of the time you just watch roots. Like this (within the class):

  var maintimeline:MovieClip = MovieClip (root);

  maintimeline. DoSomeMaintimelineFunction();

• 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.

• problem of reference current node

  Hello
  I use the Java APIs for XML DB 2.4.16. I'm trying to select some nodes, and then iterate the result and inside the loop, update the nodes with Ref to the current node ('.) »). The problem is that the following code is used to work with 2.3.10 but won't work with 2.4.16. In the version of this last exception is thrown:
  
  com.sleepycat.dbxml.XmlException: Error: DB_NOTFOUND: no matching key/data pair not found, errcode = DATABASE_ERROR
  at com.sleepycat.dbxml.dbxml_javaJNI.XmlQueryExpression_execute__SWIG_7 (Native Method)
  at com.sleepycat.dbxml.XmlQueryExpression.execute(XmlQueryExpression.java:119)
  
  Can you please help me point what the problem?
  The code is approximately like this:
  
  I tried different XPath expressions, return one or more results
  check the syntax in the code and shell to work
  Results XmlResults = xmlManager.query ("collection ('mycoll.dbxml') / / *", queryContext);
  
  While (results.hasNext ()) {}
  
  XmlValue xmlValue = results.next ();
  
  Change XmlModify = xmlManager.createModify ();
  XmlQueryExpression xmlQueryExprToUpdate = xmlManager.prepare (txn, ".", queryContext); Here's the ref to the current node
  modify.addAppendStep (xmlQueryExprToUpdate, XmlModify.Attribute, "someNewAttrib", NewValue);
  next line throws the mentioned exception
  Modify.Execute (txn, xmlValue queryContext, updateContext);
  
  
  
  
  
  
  following the code gives exactly the same error
  XmlQueryExpression expr = xmlManager.prepare (txn,
  ("Insert the node attribute someNewAttrib {'} ' NewValue ' '} in.", queryContext);
  Expr.Execute (txn, xmlValue, queryContext);
  
  }
  
  As XmlModify is outdated, I also checked the update with XQuery and got exactly the same error. I checked the XPath and XQuery syntax with dbxml shell (I used a few XPath instead of '. ' reference in this case) and it seems to work fine. The problem is probably the '. ' reference but I stress that the code has been tested before and it worked.
  I run it on Sun JDK 1.6.
  Hints, pointers to the docs or better, pointers to popular examples.
  Thank you
  
  

  Here is the finished patch.

  Lauren Foutz

  diff -r 1c1645fbc47f src/dbxml/RawNodeValue.cpp
  --- a/src/dbxml/RawNodeValue.cpp     Thu Dec 11 18:51:30 2008 -0500
  +++ b/src/dbxml/RawNodeValue.cpp     Tue Dec 16 14:40:32 2008 -0500
  @@ -84,6 +84,12 @@
   // it comes from the Container.
   DbWrapper *RawNodeValue::getDocDB() const
   {
  +     //Make sure the doc db of this node and the document are the same
  +     if (!xdoc_.isNull()) {
  +          DbWrapper *docDb = (*xdoc_).getDocDb();
  +          if (docDb) return docDb;
  +     }
  +
        Results &res = GET_RESULTS();
        XmlManager &mgr = res.getManager();
        CacheDatabaseMinder &minder = res.getDbMinder();
  diff -r 1c1645fbc47f src/dbxml/Results.cpp
  --- a/src/dbxml/Results.cpp     Thu Dec 11 18:51:30 2008 -0500
  +++ b/src/dbxml/Results.cpp     Tue Dec 16 14:40:32 2008 -0500
  @@ -241,12 +241,13 @@
        if (contextItem && (contextItem->getType() == XmlValue::NODE)) {
             XmlDocument &xdoc = (XmlDocument&)contextItem->asDocument();
             CacheDatabaseMinder &minder = ((Document *)xdoc)->getDbMinder();
  -          if (minder.isNull()) {
  +          if (minder.isNull() && !((Document*)xdoc)->getContainerID()) {
                  dbMinder_.findOrAllocate((Manager&)(context->getManager()),
                                  ((Document *)xdoc)->getContainerID());
                  minder = dbMinder_;
             }else
                  dbMinder_ = minder;
  +          if ((*xdoc).isUninitialized()) (*xdoc).changeContentToNsDom(0);
        }
        oc_.set(txn);
        conf_.setMinder(&evaluationMinder_);
  

• Sense of phonelistener callconnected

  The API reference for connected call States:

  "Invoked when the network indicates a connected event.

  What this really means? Its really a 'down on the bare metal' typ type explanation

  The number I call you actually answered or he just 'sounds' at the other end?

  Mention the API call responded, but it's just for incoming calls

  This means that the other party already answered your call.

  Cheers!