NULL values for some elements of the XML reading tree

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  http://deneskubicek.blogspot.com/
  http://www.Opal-consulting.de/training
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  ------------------------------------------------------------------------------

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  Stop();

  / * ALL BUTTONS BELOW ARE MARKED FOR EDITABLE AND DON'T CHANGE, BUT IF YOU KNOW WHAT YOU ARE DOING
  THEN YOU CAN ACTUALLY CHANGE WHAT YOU WANT BUT FOR THIS APP WORKS CORRECTLY ONLY CHANGE IF NECESSARY
  ENTRIES... ONCE YOU HAVE MADE YOUR CHANGES, COPY AND PASTE THIS ENTIRE SCRIPT PAGE IN
  THE FIRST IMAGE OF THE SCENARIO THAT HE RIGHT THE SCRIPT THATS ALREADY THERE.
  The button labels for the XML READER text * /.
  SIDE MENU BUTTONS\\\
  Btn1.buttText.ButtonText.text = "DOWNLOAD FILES"; DO NOT CHANGE
  btn2.buttText.ButtonText.text = "SYSTEM VOLUME"; DO NOT CHANGE
  btn3.buttText.ButtonText.text = 'EDIT PLAYLIST XML'; DO NOT CHANGE
  btn4.buttText.ButtonText.text = "BURN CD"; DO NOT CHANGE
  btn5.buttText.ButtonText.text = "CREATE a FOLDER"; DO NOT CHANGE
  btn6.buttText.ButtonText.text = 'DELETE FILE'; DO NOT CHANGE
  btn7.buttText.ButtonText.text = "CDROM OPEN"; DO NOT CHANGE
  btn8.buttText.ButtonText.text = 'OPEN DVD'; DO NOT CHANGE
  btn9.buttText.ButtonText.text = "FTP CLIENT"; DO NOT CHANGE
  btn14.buttText.ButtonText.text = "VIEW PLAYLIST"; DO NOT CHANGE
  btn23.buttText.ButtonText.text = "INFO"; DO NOT CHANGE
  btn25.buttText.ButtonText.text = 'HELP '; DO NOT EDIT
  btn26.buttText.ButtonText.text = 'HELP MDM'; DO NOT CHANGE
  LOW BTNS
  btn19.buttText.ButtonText.text = "OPEN TRAY"; DO NOT CHANGE
  btn20.buttText.ButtonText.text = 'CLOSE CD TRAY'; DO NOT CHANGE
  btn21.buttText.ButtonText.text = "OPEN DVD TRAY"; DO NOT CHANGE
  btn22.buttText.ButtonText.text = "CLOSE DVD TRAY"; DO NOT CHANGE

  Here ARE the FUNCTIONS THAT CAN BE CHANGED, BUT THAT THOSE BRAND 'YOU CAN CHANGE this PATH' are sure to change
  MY DOWNLOAD FILES
  Btn1.onRelease = function() {}
  MDM. Dialogs.BrowseFile.filterList = "MP3 files | * .mp3 ';
  MDM System.exec ("E:\\My Music\\").    Path to the download of the file //YOU CAN CHANGE THIS path
  }
  SYSTEM VOLUME / / / DO NOT CHANGE
  btn2.onRelease = function() {}
  MDM. System.exec("sndvol32.exe");    System volume .exe
  }
  EDITING XML PLAYLIST / / / DO NOT CHANGE
  btn3.onRelease = function() {}
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\audiolist2.xml");    XML list
  }
  BURN CD / / YOU CAN CHANGE THIS PATH
  btn4.onRelease = function() {add your way here to your burning nero for example software
  MDM. System.exec (MDM. System.Paths.programFiles+"Nero\\nero.exe");
  }
  CREATE FOLDER / / / DO NOT CHANGE
  btn5.onRelease = function() {}
  MDM FileSystem.makeFolderUnicode ("C:\\Program Files\\Mgamerz\\Burn").    Creates a working folder for burning mp3s
  }
  DELETE FOLDER / / / DO NOT CHANGE
  btn6.onRelease = function() {///Deletes working folder if you want to remove it
  MDM. FileSystem.deleteFolder ("C:\\Program Files\\Mgamerz\\Burn", "ask", "Are you sure");
  }
  OPEN CDROM / / YOU CAN CHANGE THIS PATH
  btn7.onRelease = function() {///Opens change of cdrom drive letter to match your pc
  MDM System.exec("I:\\."); "
  }
  OPEN DVDROM / / YOU CAN CHANGE THIS PATH
  btn8.onRelease = function() {///Opens changing the letter to match your pc dvdrom drives
  MDM System.exec("I:\\."); "
  }
  FTP CLIENT / / YOU CAN CHANGE THIS PATH
  btn9.onRelease = function() {///File path to your ftp software (I use here the cover page)}

  
  MDM. System.exec (MDM. System.Paths.programFiles + "Microsoft FrontPage Bar\\Office\\Microsoft Office\\Office10\\Shortcut"); "
  }
  Buttons in the header at the top

  DRIVE C: / / / DO NOT EDIT
  btn10.onRelease = function() {///Opens to the top of drive c: for navigation
  MDM. System.exec (MDM. System.Paths.programFiles+"\\");
  }
  * btn11.onRelease = function() {///Opens to the top of the unit for navigation
  MDM System.exec("D:\\."); "    YOU CAN CHANGE THIS PATH
  }*/
  MY DOCUMENTS / / / NOT EDIT
  btn12.onRelease = function() {///Opens my documents for navigation}
  MDM. Dialogs.BrowseFile.filterList = "MP3 files | * .mp3 ';
  MDM. Dialogs.BrowseFile.show ("my Documents\\");
  }
  MP3 FILE / / / DO NOT CHANGE THE
  btn13.onRelease = function() {//main directory for mp3 files
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\my_mp3s\\");
  }
  VIEW PLAYLIST / / / DO NOT CHANGE
  btn14.onRelease = function() {///View playlist as a text file
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\my_mp3s\\mp3.t xt");
  }
  UPDATE XML FILE / / / DO NOT CHANGE
  btn15.onRelease = function() {///Creates xml playlist once new mp3s have been added
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\audiolist2.xml");
  }
  MINIMIZE BUTTON
  * btn16.onRelease = function() {//Minimizes application
  MDM. Application.Minimize (///DO) NOT EDIT
  }*/
  CLOSE BUTTON
  * btn17.onRelease = function() {///Closes application
  MDM. Application.Exit ('ask', ' are you sure you want to go out to? ") DO NOT EDIT
  }*/
  SCREEN CAPTURE DEVICE / / / DO NOT CHANGE
  btn18.onRelease = function() {///Screen capture sofdtware
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\apps\\Capture screen Studio\\css.exe");
  }
  OPEN CDROM TRAY / / YOU CAN CHANGE THIS PATH
  btn19.onRelease = function() {}
  MDM System.openCDTray ("I").
  }
  CDROM TRAY CLOSE / / YOU CAN CHANGE THIS PATH
  btn20.onRelease = function() {//Closes cdrom tray
  MDM System.closeCDTray ("I").
  }
  OPEN DVDROM PLATEAU / / YOU CAN CHANGE THIS PATH
  btn21.onRelease = function() {//Opens dvdrom
  MDM System.openCDTray ("H").
  }
  CLOSE TRAY DVDROM / / YOU CAN CHANGE THIS PATH
  btn22.onRelease = function() {//Closes dvdrom plateau
  MDM System.closeCDTray ("H").
  }

  * btn23.onRelease = function() {//DO NOT EDIT
  nextFrame();
  }*/
  HELP / / DO NOT EDIT
  btn25.onRelease = function() {//Closes dvdrom plateau
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\help.exe");
  }
  HELP OF MDM / / DO NOT EDIT
  btn26.onRelease = function() {//Closes dvdrom plateau
  MDM. System.exec (MDM. System.Paths.programFiles + "MDM helps 2.5 file\\MDM 2.5 UserManual.chm"); "
  }

  use:

  / * ALL BUTTONS BELOW ARE MARKED FOR EDITABLE AND DON'T CHANGE, BUT IF YOU KNOW WHAT YOU ARE DOING
  THEN YOU CAN ACTUALLY CHANGE WHAT YOU WANT BUT FOR THIS APP WORKS CORRECTLY ONLY CHANGE IF NECESSARY
  ENTRIES... ONCE YOU HAVE MADE YOUR CHANGES, COPY AND PASTE THIS ENTIRE SCRIPT PAGE IN
  THE FIRST IMAGE OF THE SCENARIO THAT HE RIGHT THE SCRIPT THATS ALREADY THERE.
  The button labels for the XML READER text * /.
  SIDE MENU BUTTONS\\\
  Btn1.buttText.ButtonText.text = "DOWNLOAD FILES"; DO NOT CHANGE
  btn2.buttText.ButtonText.text = "SYSTEM VOLUME"; DO NOT CHANGE
  btn3.buttText.ButtonText.text = 'EDIT PLAYLIST XML'; DO NOT CHANGE
  btn4.buttText.ButtonText.text = "BURN CD"; DO NOT CHANGE
  btn5.buttText.ButtonText.text = "CREATE a FOLDER"; DO NOT CHANGE
  btn6.buttText.ButtonText.text = 'DELETE FILE'; DO NOT CHANGE
  btn7.buttText.ButtonText.text = "CDROM OPEN"; DO NOT CHANGE
  btn8.buttText.ButtonText.text = 'OPEN DVD'; DO NOT CHANGE
  btn9.buttText.ButtonText.text = "FTP CLIENT"; DO NOT CHANGE
  btn14.buttText.ButtonText.text = "VIEW PLAYLIST"; DO NOT CHANGE
  btn23.buttText.ButtonText.text = "INFO"; DO NOT CHANGE

  
  btn25.buttText.ButtonText.text = 'HELP '; DO NOT EDIT
  btn26.buttText.ButtonText.text = 'HELP MDM'; DO NOT CHANGE
  LOW BTNS
  btn19.buttText.ButtonText.text = "OPEN TRAY"; DO NOT CHANGE
  btn20.buttText.ButtonText.text = 'CLOSE CD TRAY'; DO NOT CHANGE
  btn21.buttText.ButtonText.text = "OPEN DVD TRAY"; DO NOT CHANGE
  btn22.buttText.ButtonText.text = "CLOSE DVD TRAY"; DO NOT CHANGE

  Here ARE the FUNCTIONS THAT CAN BE CHANGED, BUT THAT THOSE BRAND 'YOU CAN CHANGE this PATH' are sure to change
  MY DOWNLOAD FILES
  Btn1.onRelease = function() {}
  MDM. Dialogs.BrowseFile.filterList = "MP3 files | * .mp3 ';
  MDM System.exec ("E:\\My Music\\").    Path to the download of the file //YOU CAN CHANGE THIS path
  }
  SYSTEM VOLUME / / / DO NOT CHANGE
  btn2.onRelease = function() {}
  MDM. System.exec("sndvol32.exe");    System volume .exe
  }
  EDITING XML PLAYLIST / / / DO NOT CHANGE
  btn3.onRelease = function() {}
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\audiolist2.xml");    XML list
  }
  BURN CD / / YOU CAN CHANGE THIS PATH
  btn4.onRelease = function() {add your way here to your burning nero for example software
  MDM. System.exec (MDM. System.Paths.programFiles+"Nero\\nero.exe");
  }
  CREATE FOLDER / / / DO NOT CHANGE
  btn5.onRelease = function() {}
  MDM FileSystem.makeFolderUnicode ("C:\\Program Files\\Mgamerz\\Burn").    Creates a working folder for burning mp3s
  }
  DELETE FOLDER / / / DO NOT CHANGE
  btn6.onRelease = function() {///Deletes working folder if you want to remove it
  MDM. FileSystem.deleteFolder ("C:\\Program Files\\Mgamerz\\Burn", "ask", "Are you sure");
  }
  OPEN CDROM / / YOU CAN CHANGE THIS PATH
  btn7.onRelease = function() {///Opens change of cdrom drive letter to match your pc
  MDM System.exec("I:\\."); "
  }
  OPEN DVDROM / / YOU CAN CHANGE THIS PATH
  btn8.onRelease = function() {///Opens changing the letter to match your pc dvdrom drives
  MDM System.exec("I:\\."); "
  }
  FTP CLIENT / / YOU CAN CHANGE THIS PATH
  btn9.onRelease = function() {///File path to your ftp software (I use here the cover page)}
  MDM. System.exec (MDM. System.Paths.programFiles + "Microsoft FrontPage Bar\\Office\\Microsoft Office\\Office10\\Shortcut"); "
  }
  Buttons in the header at the top

  DRIVE C: / / / DO NOT EDIT
  btn10.onRelease = function() {///Opens to the top of drive c: for navigation
  MDM. System.exec (MDM. System.Paths.programFiles+"\\");
  }
  * btn11.onRelease = function() {///Opens to the top of the unit for navigation
  MDM System.exec("D:\\."); "    YOU CAN CHANGE THIS PATH
  }*/
  MY DOCUMENTS / / / NOT EDIT
  btn12.onRelease = function() {///Opens my documents for navigation}
  MDM. Dialogs.BrowseFile.filterList = "MP3 files | * .mp3 ';
  MDM. Dialogs.BrowseFile.show ("my Documents\\");
  }
  MP3 FILE / / / DO NOT CHANGE THE
  btn13.onRelease = function() {//main directory for mp3 files
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\my_mp3s\\");
  }
  VIEW PLAYLIST / / / DO NOT CHANGE
  btn14.onRelease = function() {///View playlist as a text file
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\my_mp3s\\mp3.t xt");
  }
  UPDATE XML FILE / / / DO NOT CHANGE
  btn15.onRelease = function() {///Creates xml playlist once new mp3s have been added
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\mymusic.xml");
  }
  MINIMIZE BUTTON
  * btn16.onRelease = function() {//Minimizes application
  MDM. Application.Minimize (///DO) NOT EDIT
  }*/
  CLOSE BUTTON
  * btn17.onRelease = function() {///Closes application
  MDM. Application.Exit ('ask', ' are you sure you want to go out to? ") DO NOT EDIT
  }*/
  SCREEN CAPTURE DEVICE / / / DO NOT CHANGE
  btn18.onRelease = function() {///Screen capture sofdtware
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\apps\\Capture screen Studio\\css.exe");
  }
  OPEN CDROM TRAY / / YOU CAN CHANGE THIS PATH
  btn19.onRelease = function() {}
  MDM System.openCDTray ("I").
  }
  CDROM TRAY CLOSE / / YOU CAN CHANGE THIS PATH
  btn20.onRelease = function() {//Closes cdrom tray
  MDM System.closeCDTray ("I").
  }
  OPEN DVDROM PLATEAU / / YOU CAN CHANGE THIS PATH
  btn21.onRelease = function() {//Opens dvdrom
  MDM System.openCDTray ("H").
  }
  CLOSE TRAY DVDROM / / YOU CAN CHANGE THIS PATH
  btn22.onRelease = function() {//Closes dvdrom plateau
  MDM System.closeCDTray ("H").
  }

  * btn23.onRelease = function() {//DO NOT EDIT
  nextFrame();
  }*/
  HELP / / DO NOT EDIT
  btn25.onRelease = function() {//Closes dvdrom plateau
  MDM. System.exec (MDM. System.Paths.programFiles+"Mgamerz\\help.exe");
  }
  HELP OF MDM / / DO NOT EDIT
  btn26.onRelease = function() {//Closes dvdrom plateau
  MDM. System.exec (MDM. System.Paths.programFiles + "MDM helps 2.5 file\\MDM 2.5 UserManual.chm"); "
  }

• Problem of null values for the Variable

  I work with APEX 4.0.  I have a menu page that has a list item widget types to select.  I then a navigation list that calls a report page and sets a widget-type element with the value of the widget on the page called - type element.

  Problem is that type widget on the page called article does not meet.  The report depends directly on this issue being filled.  The url indicates the element in the form of Pxxx_WIDGET_TYPE, but the value for parameter & Pxxx_WIDGET_TYPE. is set to null.  I am also an element of Pxxx_CALLED_FROM filling, which fill, and the url shows the value of & APP_PAGE_ID.

  What's wrong?  How to fill the element of widget_type?

  How do you define value for Pxxx_WIDGET_TYPE? And is there a value in the session state for this item?

  Kind regards

  Vincent

• null value for the parameter in quesry

  Please help on this problem:
  
  I have a query like
  
  Select colA, colB
  from tableA
  where cola =: parameter;
  
  If: parameter has a value, then the request is ok for my pupposes,
  but when: parameter is null, then I have to choose only 3 values of colA. (ColA has more than 3 distinct values)
  
  I can't use nvl because there are 3 arguments and no 1.
  
  I tried:
  
  Select colA, colB
  from tableA
  where (: parameter is not null and colA =: parameter) or (: parameter is null and colA (1,2,3))
  
  but this isn't the solution.
  
  Can someone help me on this simple query?

  Your version must have worked as long as you have no other filter criteria in the where condition.
  Need you some parentheses around the OR condition. So I don't know what was the problem with your solution.
  BTW: There is a ') ' missing at the end, but I guess that it's just a typo while copying the code on the forum.

  The following alternative works:

  select colA, colB
  from tableA
  where colA in (nvl(:parameter,1) ,
               nvl(:parameter,2) ,
               nvl(:parameter,3)
               ) ;
  

  Advantage: Can be faster in the case of null, because it can always use an index on the column of cola.

  Published by: Sven w. on April 13, 2010 15:26