Global variables and for loops

Similar Questions

• Diff between open-close-Fetch loop and For loop

  Cursor can be used in many ways. Need to know the difference between these 2 types.
  
  (1) open - close - cursor to retrieve data
  (2) because the loop open, close and then retrieves the data internally.
  
  No need to open manually, close, exit in case of loop statements For.
  
  Is there an any example where loop For cannot be used and open-close-Fetch must be used? Or any what performance advantage using Open-Close-Fetch instead of the loop For.

  If you use a Refcursor then you can't open it with the help OF the loop. You must manually open it and process. In terms of performance, I see no advantage of using a FOR LOOP on a slider of treatment manually. But using the loop looks neat and human tend to make mistake by closing the cursor when the fact at hand, but when you allow oracle to take care of her, she does it to perfection.

• Global variables and the applications

  Version of the APEX = 4
  -DB version and edition = 10g
  -Web server architecture = SST
  -Browsers = IE 8
  -Theme = 5 # Opal
  -Models
  -Region/process type
  
  I need to run a report (not a report of the apex, but a report produced in annother (reporting services) technology) that can be executed by calling a url. I'll have different environments (dev, ft, ut, prod) so I feel the application needs to know what environment is running. The only way I can think to do this is to know what workspace I'm running in. I how I determine this code, is there I can refer to a variable of apex.
  
  Also a global variable is adjustable in the apex? If so it is defined on the homepage?
  
  Any help would be appreciated.
  
  Thank you

  The only way I can think to do this is to know what workspace I'm running in. I how I determine this code, is there I can refer to a variable of apex.

  This can be done by using the views of APEX:

  select workspace_id, workspace
  from apex_workspaces
  where workspace_id = v('WORKSPACE_ID')
  

  Also a global variable is adjustable in the apex? If so it is defined on the homepage?

  Normally it would be a part of the application, defined using a calculation of the Application.

• AS2: Paintings and 'for' loops

  Hello

  I have a simple table of clips ("box1" - "box6") that I created on the stage. I then a simple onRollOver function is iterated for each of these clips, as shown below. Only now is it works well, but I can foresee two problems potential for when I use large Bay and apply this technique to my real job files.

  1. If I have a lot more video clips, the first line of code would be much longer that it lists each movie clip instance name. Is it possible to use, for example, a for loop to include these clips in the table without having to type their names? As you can see here, I used a simple incrementing numerically naming process. I think that the problem may be that I use video clips with the name of bodies assigned on the scene and not created through ActionScript.
  2. The function I created it makes all the gotoAndStop (1) movie clips and one who was knocked down then goes to frame 2. Is there a way to make all the movie clips in the table with the exception of the one who drove over gotoAndStop (1), IE. is it possible to exclude the music carried over from the first part of the function? Here, it works fine as it is, but I think that maybe when I start using the more complex functions with interpolations etc it can cause problems. Or not?

  var boxArray:Array is [box1, box2, box3, Box 4, box5, box6];.
  var: string of area;

  for {(boxArray box)
  
  boxArray [box] .stop ();
  
  boxArray [box] .onRollOver = function() {}
  for {(boxArray box)
  boxArray [box] .gotoAndStop (1);
  }
  this.gotoAndStop (2);
  }
  }

  For the first question, if you know how many boxes are there altogether, you can use a loop for to add in the table...

  for (i = 0; i

  boxArray.push (this ["box" + String (i + 1)]);

  }

  There are ways to do this without knowing how many there are as well.

  For the second question, you can probably use a conditional to compare if 'this' is equal to boxArray [box] or not and whether to exclude it.

  boxArray [box] .onRollOver = function() {}
  for {(boxArray box)

  {If (this! = {boxArray [box])}
  boxArray [box] .gotoAndStop (1);

  } else {}

  this.gotoAndStop (2);

  }
  }
  }

• Variable and nested loops

  Hi, I'm a relatively new to programming of LV, so be gentle.

  In a Word, I am running nested loops than the material test power on and off cycles. The parameters for each loop is entered on the front panel of the user. For example, the power supply at the time, how many times to read in the data, power supply off time and the number of cycles power is a typical customer task ask me to do. Therefore, I decided to do a generic as possible executable vi instead of writing code (in which I request is trivial), that my technicians can easily use.

  I want to put a counter - down in this vi, even a journey of one. I'll take the more the off time multiplied by the number of cycles and display on the front panel. For some reason that I can't find a simple way such that when the last cycle ended if poster zero before the program ends.

  For example, the total is equal to 60 minutes and 10-minute cycle. I run the program and the display shows 60 during the first cycle, after the first cycle is complete and the second cycle begins the display turns 50, and so on until that last cycle where you can read 10. Then the program ends and the screen 10. How can I get a last beat of this kind it says 0 and 0 poster before the end of the program?

  Thank you!

  Wire a zero to a local variable of this indicator so that it can turn when the while loop ends.

• Variable inside 'for' loop with parentheses

  Hi all

  Coud someone tell me how Im going to put the I variable within the [[]] because I can't get it to work

  for (var i: Number = 0; i < product; i ++) {}
  _root.menu ["Product" + i] ._x += (product[[[+i]]]x-_root.menu.product["product"+i]._x)/speed;
  }

  Thank you!

  use:

  var tl:MovieClip =;

  for (var i: Number = 0; i<>
  _root.menu ["Product" + i] ._x += (tl ['product' + i + ' x»]-_root.menu.product["product"+i]._x)/speed; "])
  }

• Global variable control and simulation

  Hello!

  I have a probem with the export data of the Simulation loop in the graphic form.

  I have created a global variable, but in the façade is not updated or exported the data necessary, but in the file as a global variable do?

  I would like to gather (gathering) all the data after the simulation data file as Excel (trace the export data to Excel or save the spreadsheet file) as well as the image of terminal.

  Please find attached my files - someone has an idea or a solution?

  There must be some easy trick

  Thank you!

  Vasco

  (1) why are you doing this problem much more complex it must be using a global variable and another loop like that?

  (2) why you son of path of the VI in the picture? You try to crush the VI on disc with the image?

  (3) be careful not to ignore the output error.

  The code shown in the attached screenshot works very well. I'll take Bravo if it helped you.

  

• global variables for the XML plugin problem

  Hello world

  recently I started working on a dialog box SOUTH, where the user can load the *.xml files in DIAdem.So much my code for the button looks like this:

  ....

  Call the FileNameGet ('ALL', 'FileRead","*.xml")
  Call DataFileLoad (FileDlgName, "XML_Plugin", "Load")

  ....

  And I must say that it works very well! I am able to load all listed in the devices file. BUT when I tried a number of loading devices, I used a global variable, that I defined in the vbscript file that I load the SOUTH since, I've noticed that global variables, I've defined with GlobalDim are not defined in the vbs.:mansurprised of XML_Pluging:

  Then I started to experiment and so far without success, no matter where I define global variables, in my plugin *.xml all not defined! The native commands even and DIAdem functrions does not work. If I run the script in tiara, it shows no errors, but when I use the plugin to open a file, then it gives an error. For example, MsgBox is not allowed.

  I used the plugin example for *.xml, which was published on the Web site of NOR, and I made a few changes. But overall I have it has not corrupted and I kept the same structure:

  Void ReadStore (File)

  Dim XmlFile: xmlFile = File.Info.FullPath
  '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
  'open the file '.
  OpenXMLFile xmlFile

  End Sub

  Void OpenXMLFile (xmlFile)
  '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
  ' Open MS - Xml Parser
  'Create the ActiveX object for the Microsoft XML parser.
  Dim XDoc: set xDoc = CreateObject ("MSXML2. DOMDocument.3.0")

  "Try to load the XML document
  If xDoc.Load (xmlFile) = False Then
  "Failed to load the document XML.
  RaiseError ' unable to load XML document!
  End If

  protected originalLocale: originalLocale = Getlocalte
  "SetLocale" en - us ".

  "The XML document loaded successfully!
  '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

  '----------------------------------------------
  "Read the header information.
  '----------------------------------------------

  Here, I have read some values of the header and then I loop on all devices present in the file!

  So basically I have two subroutines and that's all.

  SetLocale originalLocale

  End Sub

  So what I am doing wrong? Why global variables and other functions do not work. Is it because there is xml code in the script this way or it's a version problem?

  I use DIAdem 10.2. If I use global variables in other vbscripts, I use to draw curves for example I have no problem. Now I'm no *.xml code and no subroutines.

  I'd appreciate any solution that will make my *.xml plugin to work.

  Hi fscommand.

  It is expected all behavior.  Use XML, as all VBScript DataPlugins, runs in a separate VBScript host of the DIAdem VBScript host.  DIAdem VBScript host adds all global variables green and Red controls global to host Microsoft VBScript standard.  Use VBScript host has its own special abilities (file object, root object), but there is NO access to Globals green or red blanket orders in the reception of DIAdem VBScript.  Your SUDialog runs in a third host VBScript, which is separated from the other two and the other two are not capabilities (command SUDialog callback functions), but the SUDialog VBScript host and VBScript tiara share all global variables green and Red orders overall.

  Normally all blue VBScript commands are allowed in all 3 VBScripts hosts, but in the case of the DataPlugins MsgBox and InputBox functions were especially restrained because the dialogues could cause a lot of trouble with the DataFinder.  In fact, they have been allowed to 9.1 tiara which was the latest version of tiara for the DataFinder appear.

  So, why do you want to pass information between the XML use and tiara?  If you want to use to share information with DIAdem, then you should just expose every piece of information as a new property in the data portal, which can read and use the code VBScript DIAdem.  The path of the XML file is already available inside the use of XML.  What other information in the call VBScript DIAdem do you need to share with the use?

  Brad Turpin

  Tiara Product Support Engineer
  National Instruments

• Get local and global variables using API

  Hi, I do in LV a Publisher for TS. The user should be able to change the value of global variables and the inhabitants of file. Using the TS API, it is possible to get all files of Globals and locals without knowing the name of these variables have ts? I mean, if I knew the name I could use the value of property Get with the search string. But if the I do not know the name of the variable, can I get the list (and their values) of the variable?

  Thank you very much.

  Try the following link

  http://forums.NI.com/NI/board/message?board.ID=330&message.ID=3390&query.ID=6624776#M3390

  In summary:

  Use the GetNumSubProperties method to get the total number of inhabitants / FileGlobals.

  Use GetNthSubProperty to get sub properties using the index starting with 0 to GetNumSubProperties-1

  Use the Name property to get the name of the subproperty.

  Concerning

  Ray Farmer

• With the help of semaphore with a Global Variable - correct use?

  Hi all

  I looked in the use of global variables and in my case, it seemed with the help of a semaphore is the appropriate solution.

  In my case, I use a global variable to store the State of the system. Asynchronous two with screw environment (same VI) will follow two COM ports to see if they get a ' login:' command prompt. If the COM port is associated with Alpha, Charlie, or Echo, it increments by 1, and if it is associated with the Bravo, Delta, or Foxtrot, is incremented by 2 GV. If the GV is 3, the rest of the code will run. In this case, it must be a port COM A, C or E; the other should be B, D or F.

  A VI parent is called inside a loop. He works for the first loop. He never adds up to 3 on the second loop, however. I can't understand why. Please let me know if my code is a poor use of semaphores, or if there is debugging I can try.

  I'm still relatively new to LV, so I'm sorry if my screws are difficult to read. I created this in LV2011.

  Thanks for any help!

  CelerityEDS wrote:

  The output of my time looping (wait GV = 3) goes to the structure of the case on the bottom right (clear SGS, PasswordEntry, etc.), so the GV get indeed consulted by the upper case structure right.

  ??

  Your right upper case structure does not run until your time ends in a loop.  The while loop does not stop until the total is equal to 3.  Where can increment you the world besides structures case you cannot yet?

  Have you tried in your point culminating execution of the VI in order to see how they are actually running?

  Another problem that I see.  Assuming that your first while the loop is going to end.  In the structures of your case, you lock the semaphore.  But you can never unlock the semaphore unless you have the right combination of conditions that allow you to get to the case that unlocks the semaphore.  The conditions are based on data that are read before the start of the case of structure, which means that data will not be read and changed until it all ends.  You have the timeout of your lock semaphore connected on one of the cases, but your semaphore lock can never timeout because you do not have a value on his entry time-out.  I think you have a situation where you can lock a semaphore, then arrive at a situation where you can not unlock, then wind locking up of your cold code.

  I don't really think that you need a semaphore at all.  I think you can protect reading and writing functional your overall using a global variable, i.e. the motor action.  Overall, I think you need to rethink the architecture of your code.

• How to keep a relative path in a global variable

  Hello

  I use Teststand 2013 and 2013 of Labview

  Is it possible to set a relative path to a global variable in the Teststand? E.g. "... \vector1." HWS.

  Or should I use Labview functions to solve this problem?

  .

  Thank you

  The railways are much easier to handle in LabVIEW.  Thus, you can store the relative path as a string and then use LabVIEW to make the absolute path.

  I usually store a file into a global variable and then I can just concatinate the strings to build the absolute path.  For example:

  FileGlobals.Folder = "C:\\foo\\bar\\"
  
  Locals.Path = FileGlobals.Folder + "blah.txt".

• global variable in the instrument Drivers

  Hello

  We design an instrument Driver for our devices. We have VI that does the same thing, but with different inputs and this entry is a collection of references.

  I would like to know if this VI can be contributed by these groups as global variables. Through this way, I hope that we will significantly optimizie our code.

  We are also looking for drivers to achieve certification by the OR so looking for any sort of solution if global will not be a good solution to achieve the optimization.

  Thanks in advance,

  VIvek

  I don't understand what you mean by "chipped". Using global variables magically will not make your code more efficient. It is used for the global variable, and there are places where they should not be used. Reasonable use must contain the data used by several processes, even if a queue is usually a better way to go.

  The best way to see how to write an instrument driver is to download recent instrument of the NI Instrument Driver Networkdrivers. Look for ones that are based on projects like these are made in 8.x and are fairly recent. You don't have to bother with the old drivers - they are a mess. You should be able to find something that looks like your instrument and use it as a model. There is also a Driver of Instrument wizard that comes with LabVIEW. Another source of information is the basis of knowledge of NOR. Do a search and you will find a lot of information. Like this: developing LabVIEW Plug - and - Play instrument Drivers.

  You should also read on the nugget of Ben on the engines of the Action.

• Global Variables are preferable to the Globals functional - so there! :-)

  I feel a little controversial today so forgive the brutal title of this post

  I've never used global variables because I was under the misconception that they are somehow 'bad '. That's all I've heard since I started learning the LabVIEW. Review the code in the nets upconvert and downconvert. The ugliest code uses globals and some of the most beautiful code does not work. This means that bad programmers use global variables and globals are so bad programming practice. This is not true. Globals are just easy to use for newbies to use them. ' Not initialized what? I can't find those on the pallette? »

  I think I always wondered unconsciously that globals are bad. They are not bad, it is their use that may be bad. This is true for anything in life.

  The first and the most obvious problem with global variables is racing conditions. But this is not strictly the overall causing the race condition. This is the data stream is not defined.

  

  But the same is true if functional a global being misused. In the example below there is nothing to enforce data streams.

  

  You must run the data flow with a thread of error for example.

  

  Globals do not have a thread of error but not fear - the man of the sequence is here!

  

  You only need the sequence if the global is directly on your drawing. These two structures of single image sequence could be replaced by a NumericWrite.vi and a NumericRead.vi containing nothing but overall, a command or the indicator respectively and the terminals of the error. Put it online and it is good as gold. Or you might have a Subvi containing nothing but a frame two cases selected by an enumeration containing the elements 'Get' and 'Set '. Now, it looks like a duck and quacks like a duck. Don't you worry by the overhead of the structure of the case either. If the enum is a constant, it will be unfolded.

  Another problem with globals, it's that they are, well, global. Is not different from a functional overall, so it isn't really a problem anyway. Globals and globals functional it is easily taken by placing them in a library and define the scope of the access. Not to mention that libraries give you namespaces and "namespaces are one honking great idea - do several of these!" *

  The real reason to use a global rather than a functional overall is that they are about twice as fast.

  Until this morning I would have recommended to use a more functional global overall. But I changed my mind. Someone can it change back?

  * The Zen of Python

  
  

• How to associate existing global variables

  It's probably something stupid that I'm missing.

  I created a global variable and there is a string.  I put it in a file called XML_Global.vi I then proceeded to make an another global var and would assign to the same variable.  However, the IDE shows me an another façade Globals 4.  How can I associate the existing façade of XML_Global.vi with the global variable I PLOPPED down there?  I looked everywhere on how to proceed in the properties and others, but couldn't find it.

  Have you read through this document?

  http://zone.NI.com/reference/en-XX/help/371361F-01/lvhowto/creating_global_variables/

  There may be some confusion about what is happening... When I add a global variable for the rough process, I followed the block diagram is:

  • Open the front panel to the global variable
  • Add FP (there may be several elements in a global variable VI)
  • Save the global variable VI
  • Then drag + drop of my project on a diagram VI
  • Select the variable I want by double clicking on the overall and will select an element > name Variable

  If this clears it for you? Looks like you try to simply place another instance of global variable in the palette of functions and then select the variable to assign this instance to (similar to what you would do with a local variable)? With globals, a new instance of a global VI is created when you drop the global BD... you want to place the world you have edited/saved (drag + drop of project or use the "Select" VI in the range of functions).

  I hope this helps...

• Assignment of global variables

  I apologize if this is a fundamental and simple question, but I was pulling my hair out for the last week trying to get this working and Google becomes sick and tired of my questions to get answers.  This should not be so difficult, but I'm not a designer, not a programmer, I'm just a tech trying to make my life easier, then Yes, I brought it on me.

  I have converted an InDesign form that has a bunch of boxes in a document of LiveCycle.  I want the boxes when they are verified to assign a value to the variable assocated.  In the properties of the form, I've set up global variables and assign the value to '0 '.

  The box I put the method/property to change to have the following code:

  If (topmostSubform.Page1.Back_Cover.rawValue == 1)

  BC.value = 6300;

  on the other

  BC.value = 0;

  I have a textbox that I am taking all these values and based on what is checked and this is not it must calculate the total for this field.  Here is the code I have for the calculation of the value of text using the method/property to calculate:

  premium.rawValue = BC.value + IFC.value + IBC.value;  There are three check boxes associated with this value

  However, no matter what I do not values seem to are they assigned to the variable of BC.

  Can someone tell me please in common sense as to why it doesn't work?

  Thank you very much.

  Tom

  Hello

  I think Steve is right, you want to avoid using global (or form) variables in this case, particularly in the case of calculating as any change that value will not cause a recalculation.  I have also try and keep all the logic of calculation in one place.  So, in the case of calculating the premium field, I would put the following JavaScript code;

  this.rawValue = (Back_Cover.rawValue = 'On')? 6300: 0;

  this.rawValue += (Inside_Front_Cover.rawValue = 'On')? 5775: 0;

  this.rawValue += (Inside_Back_Cover.rawValue = 'On')? 5350: 0;

  Note that the power of your checkboxes values are the strings 'On' and 'Off '.

  Bruce.

  PS nice shape looking