Boolean condition defect Xcontrol

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• How switch does work in Boolean conditions

  Hi, I have a condition that is "boolCond = true (). If the boolCond is true, the condition is running, but if the boolCond is set to false, then also the condition runs. The branch that is not executed even if the boolCond is set to false. How does the Boolean condition?
  
  < switch name = "Switch_1" >
  < condition = "bpws:getVariableData('inputVariable','payload','/client:SwitchBooleanProcessRequest/client:boolCond') = true () - business" >
  < assign the name = "Assign_1" >
  < copy >
  < from expression = "" Condition is true"" / >
  < variable = part of the 'outputVariable"="payload ".
  Query = "/ client: SwitchBooleanProcessResponse / client: result" / >
  < / copy >
  < / assign >
  < / Body >
  < in > other
  < assign the name = "Assign_2" >
  < copy >
  < from expression = "" Condition is false"" / >
  < variable = part of the 'outputVariable"="payload ".
  Query = "/ client: SwitchBooleanProcessResponse / client: result" / >
  < / copy >
  < / assign >
  < / otherwise >
  < / switch >
  
  Any help?
  
  Thank you.

  Have you covered SOA_ORACLE_HOME\bpel\samples\references\Switch sample?

• Boolean condition on a tab does not

  Hello!
  I have a tab that should only appear if a recording is in the database. I use a condition "PL/SQL function body returning a Boolean" by the following:
  
  DECLARE
  T1 varchar2 (20);
  BEGIN
  Select the GROUP in t1 from pl_department where userid =: APP_USER.
  If ((t1 = '-') OR (t1 is null) OR (t1 = ") or (t1 = '%' |)) ' %')) null then
  Returns false;
  on the other
  Returns true;
  end if;
  END;
  
  If no data is found in the database, I get an error at the top of my page "invalid function body condition: ORA-01403: no data found".
  As you can see I tried to check the 4 possible different values, but nothing works.
  Any ideas on what I can try?
  Thank you!
  T
  
  Published by: 73pixieGirl on December 16, 2008 06:34

  Hello

  You can better use the Exists condition (SQL query returns at least one row)
  You would put in the expression 1: select the GROUP from pl_department where userid =: APP_USER.

  The problem you are experiencing, it is that your code is entering the exception. If you really want to keep your code, you can adapt it as:
  DECLARE
  T1 varchar2 (20);
  BEGIN
  Select the GROUP in t1 from pl_department where userid =: APP_USER.
  If ((t1 = '-') OR (t1 is null) OR (t1 = ") or (t1 = '%' |)) ' %')) null then
  Returns false;
  on the other
  Returns true;
  end if;
  EXCEPTION WHEN NO_DATA_FOUND THEN return false;
  END;

  But I recommend you my first suggestion.

  Kind regards
  Dimitri
  ----------------------------------
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  AWARDS: Don't forget to mark correct or helpful messages on the forum

• Update of an item of table boolean conditionally

  Hi, I have a table of 16-bit Boolean values, and I want to be able to change a bit and only, when appropriate for the VI has changed.

  As background, I have a 16-bit port Expander (I2C) and I need to change a little, IE, define an output on or off, without affecting the others. To do this, I re-read the 16 bits so I know what are the current States of the outputs, then I need to change a bit and write that the 16-bit of return.

  I looked at the block replace table subset, which seems to be related, but since I only need to change one bit at a time, I don't see how I can connect the control to all 16 bits and change only the need for change.

  Is there an elegant way to do it? For instance I have a list box with the names of the ports, so that the user can select the port they need to change, and then they set the State of a toggle switch or a Boolean value to set the bit and only this small? Thanks for any advice.

  What is the kind of thing you had in mind?

  

  

• Boolean State of wire break

  This seems basic, but I can't find a way to set a breakpoint on a thread that is a Boolean condition which stops running when the condition is false. Is it possible to do?

  Bring a "probe on condition.

  

• in what version of labview the ' stop if true ' condition become available for while loops?

  The answer to this question would mainly just my own curiosity, although it would also help to explain why some LabVIEW programs I have others that have been written in previous versions have strange as constructions invert a Boolean condition before it is wired to the 'continue if true' (when obviously they could have just wired the condition directly to a ' stop if true ').

  Not sure 100% but he could LV 6. I 6i on a virtual machine and it's there, and I don't remember having this feature available in LabVIEW 5.

• Deactivate a conditional selection checkbox

  Hi gurus,

  I have a requirement to disable the check box selection under certain conditions. I have the box on page 1 and table on page 2. If there is no line in the table of page-2 then the box on page-1 must be turn off.

  I use Jdeveloper 11.1.2.3.0 version

  Kind regards

  MD Jahangir Pasha

  Hello

  As you mentioned that your replationship Mater-details table have up to four, then if you would pull the data from the 4th table then, the fourth table shows data for the current line in table 3, similarly the 3rd table will have data from the current row of the 2nd up to table and so on the first table.

  So now if your third table 2 lines and fourth table rows for 2nd place, not the 1st row of the third table, and if the current line in the third picture is the first line, then the fourth table willl never display the data even if it exists for the second line of the third table.

  In this case, you must make a link between the first and fourth tables to enable or disable.

  Now for the second case. I don't think there will be a problem if you implement the scenario using the second case.

  Simply perform your validation in your change listner value and display the message.

  You can do something like this.

  {} public void vcl (vce ValueChangeEvent)

  NewValue of the object = vce.getNewValue ();

  If (newValue! = null) {/ / condition}

  {if (((String) newValue).)} Equals("Y"))}

  Boolean condition = false; / / perform your operation and value and show messege.

  {if (condition)}

  FacesMessage msg = new FacesMessage ("hhhh", "iuu");

  msg.setSeverity (FacesMessage.SEVERITY_ERROR);

  FacesContext.getCurrentInstance () .addMessage (vce.getComponent () .getClientId (), msg);

  the value of the box set to false

  }

  }

  }

  }

  Thank you

  Aman J

• delete 2d array in the while loop

  I have a table 2D being initialized outside of the loop executing a state machine, how would a clear table 2d in the while loop? I guess I'm not sure what to wire a constant matrix empty 2D too =)

  When you want to erase (regardless of this Boolean condition), wire just a constant matrix 2D of your shift register.  See attachment.

• Problem with the Value property node (MacOS)

  Insofar that I tested it, the nodes of property Value (and value (signalling)) do not work under MacOS: value property is a Boolean value, the value (signaling) as a cluster (width, height).

  Even with the Boolean controls, the node does not work.

  Not such a problem in LV 8.6.

  Am I missing something? Is that some 'of use' ? Or just a bug?

  This looks like some sort of problem of indexing with the nodes property as somesort of corrupted installation.  What happens if you just delete the property node and recreate him?

  I filed a digital control and looked at the context menu of the list of the nodes property.  Below value and value (signs) are Visible (which would be a Boolean value) and Xcontrol, that when you bring through the submenus, the first choice is container bounds, a cluster of Width and Height.  If these 2 types of data which are located 2 below in the list match those you found.

  What happens if you take another node in property a few elements upwards or downwards in the context menu?  Fact is happen for other properties, and if so, are thereany properties who agree?

  Here's what look like my property for a digital nodes and I draggged the box up and down to show the natural order of the nodes property.  Notice that I have script installed, so there are a few other nodes property (and the blue box at the top) you may not have.

  

  PS. Verify you the signature.  Kudos button is now moved to the left since the update of the forum.

• Range the range must belong to the size of the buffer.

  Hello

  I'm pretty stumped on this problem. I have a chart with a picture of Chartcollections. The tables are filled in at the same time. Sometimes, quite randomly, I get this exception. In this case, I had three parcels posted:

  System.ArgumentOutOfRangeException was unhandled
  HResult =-2146233086
  Message = range slice must belong to the size of the buffer.
  Parameter name: length
  Real value was 3.
  Source = NationalInstruments.Common
  ParamName = length
  StackTrace:
  to NationalInstruments.Restricted.Guard'1.Satisfies (Boolean condition, Func 4 exceptionCreator, String format, Object [] args)
  NationalInstruments.Restricted.NIValidation.IsInRange [T] (1 keep, Boolean isInRange, format String, Object [] args)
  to NationalInstruments.DataInfrastructure.Primitives.RawDataStore'1.Slice (Int32 startIndex, Int32 length)
  to NationalInstruments.DataInfrastructure.Buffer'1.Slice (Int32 startIndex, Int32, Func 2 traitFilter length)
  to NationalInstruments.DataInfrastructure.Buffer'1.NationalInstruments.DataInfrastructure.IBuffer.Slice (Int32 startIndex, Int32 length)
  at NationalInstruments.Controls.Internal.DefaultAdjusterStep.a (IDictionary 2 A_0)
  at NationalInstruments.Controls.Internal.DefaultAdjusterStep.c (IDictionary 2 A_0)
  at NationalInstruments.Controls.Internal.DefaultPipelineDataProcessor.a (DefaultDataItemDescription [] A_0)
  at NationalInstruments.Controls.Internal.DefaultPipelineDataProcessor.a)
  at System.Windows.Threading.ExceptionWrapper.InternalRealCall (Int32 numArgs, delegate callback, object args)
  to the millisecond. Internal.Threading.ExceptionFilterHelper.TryCatchWhen (Object source, method Delegate, Object args, Int32 numArgs, delegate catchHandler)
  at System.Windows.Threading.DispatcherOperation.InvokeImpl)
  at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext (Object state)
  at System.Threading.ExecutionContext.RunInternal (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Windows.Threading.DispatcherOperation.Invoke)
  at System.Windows.Threading.Dispatcher.ProcessQueue)
  at System.Windows.Threading.Dispatcher.WndProcHook (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean & handled)
  to the millisecond. Win32.HwndWrapper.WndProc (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean & handled)
  to the millisecond. Win32.HwndSubclass.DispatcherCallbackOperation (Object o)
  at System.Windows.Threading.ExceptionWrapper.InternalRealCall (Int32 numArgs, delegate callback, object args)
  to the millisecond. Internal.Threading.ExceptionFilterHelper.TryCatchWhen (Object source, method Delegate, Object args, Int32 numArgs, delegate catchHandler)
  to System.Windows.Threading.Dispatcher.LegacyInvokeImpl (priority DispatcherPriority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
  to the millisecond. Win32.HwndSubclass.SubclassWndProc (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
  to the millisecond. Win32.UnsafeNativeMethods.DispatchMessage (MSG & msg)
  at System.Windows.Threading.Dispatcher.PushFrameImpl (DispatcherFrame frame)
  at System.Windows.Threading.Dispatcher.PushFrame (DispatcherFrame frame)
  at System.Windows.Threading.Dispatcher.Run)
  at System.Windows.Application.RunDispatcher(Object ignore)
  System.Windows.Application.RunInternal (window)
  System.Windows.Application.Run (window)
  at System.Windows.Application.Run)
  at MyProject.FinalTest.Specific.GUI.App.Main (c:\Sandbox\Specific2\MyProject.FinalTest.Specific.GUI\obj\Debug\App.g.cs:line 0)
  at System.AppDomain._nExecuteAssembly (RuntimeAssembly assembly, String [] args)
  at System.AppDomain.ExecuteAssembly (String assemblyFile, Evidence assemblySecurity, String [] args)
  at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly)
  at System.Threading.ThreadHelper.ThreadStart_Context (Object state)
  at System.Threading.ExecutionContext.RunInternal (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Threading.ThreadHelper.ThreadStart)
  InnerException:

  I don't know even where to start looking! Can someone please give me some advice? Thank you!

  I found the problem!

  I had a timer by calling the method, which has updated the plots of a queue. If there is too many signals, emptying of the queue can take longer than the next call timer, and two threads try to access the graphics paralel. I know that set the idle timer for the queue reading and turn it on after and looks of problem solved!

  Thanks for the idea of bouncing, that's the direction I had to start looking!

• structure of the event within the structure of the case? error or limitation of LabVIEW?

  Hello

  I am trying to reach a structure of the event within a box structure. The event is triggered by a mouse event (mouse down, move to the top).

  This vi tries to simulate behaviour of the device with a sensor, so the mouse triggered the structure of the event, won't be there in real working environment, so I can't remove the structure of the case.

  But as I noticed that if I try to click on the drawing (that my mouse events are triggered with) before activating the Boolean condition of 2D, I can access is no longer the component front (button, leads, etc.).

  They seems to be frozen. But if the case is true before you try click on the 2D drawing area, everything seems to work well.

  Is - this protected by a kind of LabVIEW bug or there is a limitation?

  These are my screws.

  Thank you

  

  Hello Nefertari,

  Use a Standard Architecture.

  I changed the code. I hope now that its fine.

  Please find the code updated the joint.

  LV 2012.

  Kind regards

  Leila

• Table 7.1 LabVIEW and LabVIEW 12

  Hi all

  I don't know why this is happening. I have a program here where I have controls for the enumerator who has 0,1,2 and which leads to a Boolean condition (0 - F, F, 1-F, T, T-2, T that appears in table 3. However, table 3 is the inverse of what we indicate at the outset.

  The program has 3 main buttons: NEXT, FINISH, and STOP.

  The program does not stop until you press STOP.

  Whenever you press the OTHER, going to all the controls of the enumerator value in the table and it keeps adding until I click on FINISH. The number of times is THEN pressed into guarded is saved

  The FINSIH leads to two operations:

  (1) there is a loop FOR who runs the number of times you press the OTHER.

  (2) inside of the loop, it modifies each row of the table of 48 items in a 2D of 4 X 12 table, where the position of the element is reversed. The original numbering of the table from left to right, where each item is sequenctially added with rest more element of port 0 as the 0th value of table and continues.  , but in the table shown in the annex, it passes to the numbering from right to left with the right most element affecting the element 0 1 Port.

  (3) it is powered by an array of Boolean leading to an array of Boolean T/F.

  Later I want to feed this T / F my acquisition of data values.

  Here, I'm a bit confused because this program works perfectly well inLabVIEW 12 but it does not iterate table properly in LabVIEW 7.1. In LabVIEW 12, I am able to get results than expected and there is a perfect match between 'annexed table' and the 'array3. However, in LabVIEW 7.1, there is a mismatch between the "annexed table" and "table 3". From what I can see, the 3 table 7.1 uses data n of the previous run for iteration 0 array. And then uses the data for iteration in table 1, 0E current tracks.  and then for iteration in table 2, it uses 1 data of the current tracks... and so it goes up to n - 1, then it stops.

  Please suggest what would be the best way to solve this problem, and I do not see that in LabVIEW 12.

  Thank you

  G

  As has been said, your program fits with the race conditions and general misconceptions about data flow programming.

  You are all far too complicated! I can assure you that this could be done properly with less than 10% of your current code. For example, your rings 48 photo could be placed in a container of cluster instead of a decoration. Now, all you need is a single terminal followed 'cluster to table' instead of this gigantic Spider Web of the code in the event "next". Why is "number of orange occurrences? This must be an integer. Why don't you use one of value instead of directly wiring? Why the number of iterations depends on [i] from the outside while loop? No it has no logical sense. You have access to the main draw of the regisiter to SHIFT, so do not even an indicator is hidden. Why involve the front panel for stuff that only the code must? Waste duplicate code all this blue in the event 'Finish' could grouped in a single small loop.

  See how far you get. The final code should probably fit on half of a postcard once you do this. You don't need the properties of value!

  Once you reduce the code to 10%, you can make a 10 x more complicated program with less effort than what you have here!

• Reset the clock of 'VI' express of elapsed time, in a case structure.

  I use a box structure. For the event may be TRUE, the program must perform 3 Boolean operations TRUE condition I did use 3 screws to elapsed time. 3 Boolean conditions are executed in 2,5,8 seconds respectively. After 2 seconds, Boolean 1 should light up. After 5 seconds 1 Boolean should turn OFF and Boolean 2 should turn on. After 8 seconds 2 Boolean should turn OFF and 3 Boolean must turn it on and continue to stay THERE unless the FALSE condition is executed.

  During the FALSE condition, all 3 Boolean flags must disable (OFF) and all 3 timers must be reset to zero.

  When running from true to FALSE there is no problem, but when running from FALSE to TRUE, Boolean 3rd continues to stay in State, rather than the State OFF because the timer starts from the point where it was changed instead of reset.

  How can I fix this problem so timers start from 0 seconds to every time the REAL case is executed?

  hope this helps... If not, change your needs

• loop for and while loop with empty table entry

  Hello

  I have a question with loop and loop.

  When a constant empty array (zero element) is connected to the loop For with "allowing the index", there are no interactions performed in loop For. But, if the loop is replaced by any loop, no problem.

  LabVIEW 2010

  Hello

  It is ok. I have no problem at all.

  For the 'loop' For when you connect the table thanks to indexing, the number of iterations is set to the size of the array. The iteration number assigned to N (in your case 10) is ignored.

  For the 'While' loop the number of iteration is defined by the Boolean Condition and the size of the array is ignored.

  Paul

• the value must be registered

  Hello Sir/Madam,

  I'm a newbee in lab mode, I want to build a program to write a daqmx data read to a tdms file such as recording should start only when I press a button and stops when I click again on the same key, please help

  Thanks cordially

  AYUSH Ghosh

  Hi Mary,

  This should not be difficult to achieve. You want it to be when you click a button on the front panel? If this is the case, then you could wire a Boolean controls entry of a case Structure and don't have the Write to TDMS run when the Boolean condition is set to True. Is that what you need?

  Kind regards