Several events triggered by a change

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• events triggering not on value change

  Is there a problem to have several event facilities in a VI that handle the same event? Specifically, I have a stacked sequence where in an image, there is an event loop (structure of the event in awhile put in loop) which manages the user interface buttons and closes the loop when met the correct conditions and then moves in another frame with another loop of events that handles the key events even in a manner slightly different and also some data acquisition view and generate files.

  I have attached a simplified version of VI that illustrates the problem. If the second event (in box 3) loop is activated, the RUN button are not managed in the first loop of the event. If the second loop of the event is disabled the button RUN are managed in the first loop of the event.

  This is something that can not simply to be chart labview? I'm more used to do this kind of programming in C or VB where the handler determines its behavior based on some global state variables and maybe I don't see how to achieve this easily in labview.

  I wouldn't the things sentence too strongly, as Dennis has, his points have merit.

  Your problem is with a parameter set to the value change event in the second structure (a checkbox in the dialog box), which tells the LV to lock the front until the end of the case of the event. Given that the occurrence is not complete (it doesn't even start), the FP remains locked and you can't do anything. The key here is understanding that registration for the event occurs as soon as the structure of the event between the VI is execution mode (simplification, here we just say the VI began to run) and from that point on the recorded events are queued, but you let run never really the structure of the event.

  The band-aid patch might be to uncheck the box for this option, but this isn't a good solution. A better solution would be to review your code in such a way that you don't have the event structures in order. There are many options for how you can do it. Here is one that is quite detailed - http://www.notatamelion.com/2015/02/23/building-a-proper-labview-state-machine-design-pattern-pt-1/

  In this one, you basically have a structure of the unique event and you react to events according to the State of the system.

• reference, triggering case value change event

  Hello

  I have 2 VI, it has a switch on it and one for the event that watches for a change in value on the toggle switch and if it detects one it turns on a light.

  The second VI reference the first VI and reference of the toggle switch.  This second VI I wish I could switch on or off and have the case of the event in the other VI do its thing.

  This is not the case.  The same case is not catching the failover when I do for one another VI referencing the switch

  is there a workaround to do, a way to make the case event notice that the reference value changes without having to not to use the case of the event?

  Thank you very much!

  You use the Value property (Signaling) to trigger an event of value has changed.

  Lynn

• trigger several events to user in an architecture of producer/consumer

  Hi all

  I use a producer/consumer architecture, where the case within the property are selected with enums sent via a queue.

  Enums are queued in the producer, which is a Structure of the event inside a While loop. Then each of the events in the producer is associated with a case in the well (to make it easier).

  Now I would like to run several events in the producer, programmatically in a given sequence. The events involved in the sequence are basically all triggered by changing the value of a Boolean value (button).

  Please find attached a schematic representation of the sequence, I would like to implement.

  I heard of 2 solutions:

  -"Writing to the node (Sgnl) Value property of the variable [I] want change."

  -Dynamic user events

  In any case, I don't know how to make sure this is done for several events in a specific sequence?

  Thank you.

  Florian

  
  

• structure of the event: have an event triggers another event

  I have a structure with two events of the event. I want that the finalization of the first event to trigger the second event. The two events are triggered by a change in value of type boolean, say "1 Boolean' and 'Boolean 2". Can I have a local variable of the Boolean 2 inside the event 1. By changing its value, it should raise events 2. However, this doesn't seem to work. (see attached example)

  any help?

  If sue you the property one of the options node is value (signaling). This causes the fire of ot event in the event. See below:

  

• structure of the event recorded does not change value

  I have a VI that communicates with an FPGA via a telnet interface.  I have several Boolean controls on the front panel.  When you click a control, it sends a write command on the face i in telnet to the FPGA.  Similarly, if a process in the FPGA himself wrote the same registry (that control written when I clicked on it), an order is generated in the FPGA and returned to the VI and the control (via a local variable) lights or unlights accordingly (based on value).  In other words, these controls are read-write...

  It's all workers, except for one important thing.  I have the code that runs through a structure of event whenever the value of the control changes.  I can see that this code executes in fact when I click on the control via the front panel.  HOWEVER - when something is generated in the FPGA finally changes the value of the control, the structure of the event does not, even if I see the value of the change of control on my front.

  A specific example, I have a control named CLIENT_LB.  When I click on CLIENT_LB, I see it lights up, and I see the event structure code run.  Now, if I have the FPGA process to set CLIENT_LB to 0, I see unlight on my front, but does not run the code structure of the event.  I have probes in place who have checked the associated local variable CLIENT_LB evolving impact of values.  The structure of the event reads: 'CLIENT_LB': value change.

  Shouldn't an event structure "value change" run when the value changes, regardless of whether if it happened manually (i.e. me by clicking on the control) or automatically (i.e. the FPGA written in VI and changes the value of the control)?

  The VI is great, and you would not be able to test it in any case unrelated to the material, to remedy that I've attached 2 screenshots, I have described below.

  1. This is where the string from the FPGA analysis occurs.  The chain between the sub - VI, and then the data chain part is hidden to determine if the Boolean value of the control is true or false.  I put a probe on CLIENT_LB, and I see that as the FPGA changes the value of the register, CLIENT_LB passes from false to true as a result.  I checked this several times.

  2. it is the structure of the event.  This code runs when I click on CLIENT_LB on my face, but does not run when the peak CLIENT_LB #1 local variable is changed.

  Writing to variables never fires events to "change the value. If writing should raise this event, use the property "Value (follow the signs).

  Norbert

• Dynamic action - number of events triggers

  See http://screencast.com/t/XrGTYvKFT
  
  The DA is a search server side based on the content of a form input field when the field gets focus.
  
  Is it possible to trigger the DA on either a KeyRelease event or get a tune-up? It would cover both use cases, initial entry and reviewing data that already exists.
  
  Ideas? Thank you
  
  [Of course, I could just duplicate the DA and set one of them to shoot the KeyRelease and the other on GotFocus, but this is not < a href = "http://en.wikipedia.org/wiki/Don%27t_repeat_yourself" > < /a > SEC]

  Vikas,
  It would have been much easier if the events themselves might have been entered in definition (wizard) D.A., so that several events as well a custom events trigger a D.A.

  As for your question, a (convoluted) way is to use an intermediate element of the set.

  Want to trigger a D.A. on 'KeyRelease' and 'Get the Focus'.

  Add a hidden element somewhere on the page (element text pre/post, headers region, region html etc...)

  < span id = "my_elem" > & template; </span >

  You can then set the D.A. triggered by a click (double click or any event that D.A. support natively) on this element.

  Then you link the original events on any element to trigger the event of the item to the D.A. (and therefore the D.A.)
  You can add an onload J.S / an another D.A. for that.
  The code reads

  $('selector').bind('event-names',function(){
    $('#my_elem').trigger('eventname');
  });
  

  for example

  $('P1_ITEM1').bind('keyup,focus',function(){
    $('#my_elem').trigger('click');
  });
  

• AdfCustomEvent.queue does not provide several events (11.1.1.3.0)

  I created a JSF page in which I use ADFCustomEvent.queue to call a method in a pod of support from JavaScript code. It seems, however, that if several events are queued, method support the bean is called only once. This is expected behavior?
  
  
  For example, my JSF has simply a command button. When you click on it, the "clientListener" calls a JavaScript function. This JS function queue of events, and the "serverListener" sends those on the server. (Code example is below).
  
  
  < af:document id = binding = "#{"d1"backing_eventtest.d1}" >
  < af:form id = binding = "#{backing_eventtest.f1"f1"}" >
  < af:commandButton text = "events."
  Binding = "#{backing_eventtest." CB1}"id ="cb1 ".
  partialSubmit = "true" >
  < af:clientListener method = "OnButtonClick" type = "click on" / >
  < af:serverListener type = "eventServerListener".
  Method = "#{backing_eventtest.handlePageMessage}" / >
  < / af:commandButton >
  < / af:form >
  
  < af:resource type = "javascript" >
  OnButtonClick() {} function
  var BTN = AdfPage.PAGE.findComponent ("cb1");
  AdfCustomEvent.queue (btn, "eventServerListener", \{message:"Hello 1" \}, true);
  AdfCustomEvent.queue (btn, "eventServerListener", \{message:"Hello 2" \}, true);
  AdfCustomEvent.queue (btn, "eventServerListener", \{message:"Hello 3" \}, true);
  AdfCustomEvent.queue (btn, "eventServerListener", \{message:"Hello 4" \}, true);
  AdfCustomEvent.queue (btn, "eventServerListener", \{message:"Hello 5" \}, true);
  }
  < / af:resource >
  < / af:document >
  
  
  In the method of handlePageMessage of the bean of my support, the message 'Hello 5' only ever comes through. I was expecting sort all 5 events to come through.
  
  Are my expectations wrong, or is it a "problem"?
  
  Published by: user614824 on May 28, 2010 09:42

  I guess that your expectations are wrong here. The framework works as expected.
  The doc (5.4.3 what you will need to know the data Marshalling and Demarshalling)

  When you send information from JavaScript to Java, JavaScript data objects are converted (moult) in XML, which is then analyzed back or unmarshaled into Java objects on the server-side. For example, consider a JSF page that contains a commandButton control element whose ID is cmd. When a user clicks on the commandButton control component, the customer must communicate with the server that an actionEvent was triggered by this specific commandButton control. In terms of requestParameter, information is mapped with the key using the format event. + id, where id is the ID of the component. The key to map to the commandComponent requestParameter would therefore be the XML string that is stored as a value of the event.cmd key.

  This part of the documentation speaks of how events are passed to the server. Because an event is placed into the foreground of requestParameter (which is a java.util.map) each of your events overrides that you queued before. You will see then that the last of them.

  Timo

• the space in the center of the display calendar top of the real calendar no longer displays a list filtered in several events.

  the space in the center of the calendar view top of the real calendar that is used to display a list filtered in several events. This list is now missing. How can I get that back?

  Finally, I noticed a menu item "events and tasks > find Events" with no shortcuts like Ctrl-F, which I tried. That fixed it.

• Fields on several Internet sites have been changed in another language. The browser is set to English, and this problem does not occur with Chrome.

  Fields on several Internet sites have been changed in another language. The browser is set to English, and this problem does not occur with Chrome. Specifically, a large part of Tumblr and Facebook menu has been changed in another language (Russian, I think). I tried reinstall Firefox, clear the cache and reset firefox to its default state. None of them helped. Any suggestions on how to fix this?

  Hey again,

  Sometimes a problem with Firefox can be a result of malware installed on your computer, you may not be aware of.

  You can try these free programs to search for malicious software that work with your existing anti-virus software:

  • Microsoft safety scanner
  • MalwareBytes' Anti-Malware
  • TDSSKiller - AntiRootkit utility
  • Hitman Pro
  • ESET Online Scanner

  Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one.

  More information can be found in the article troubleshooting Firefox problems caused by malware .

  I hope this helps!

  Curtis

• HP Pavilion p6 - 2220t: HP Support Assistant update 11/20/2015 causing several event ID 3 warnings

  HP Pavilion p6 - 2220 produced t NumberB3F79AV #ABA

  Windows 7 Home Premium 64-bit Service Pack 1

  Windows Firewall and Microsoft Security Essentials

  HP Support Assistant 8.1.40.3

  HP Solutions Framework 12.0.30.219 Support

  Since HP Support Assistant updated on 20/11/2015, which has also updated HP Support Solutions Framework on the same day, I get several event ID 3 warnings in Event Viewer on my Pavilion Desktop.  Everyone can repeat 2 or 3 times when the computer is started or wakes.  There are 66 warnings until 6 days.  All come from HP health Active.

  Log name: Application

  Source: HP health Active

  Date: 25/11/2015-22:48:55

  Event ID: 3

  Task category: no

  Level: WARNING

  Keywords: Classic

  User: n/a

  Computer: PC - 1

  Description:

  COM exception running a command GET Casl Diags.PostCodeError = [NO SPECIFIC CASL = 0 x 80041002]: Exception from HRESULT: 0 x 80041002

  ****************************************************************************

  Log name: Application

  Source: HP health Active

  Date: 26/11/2015-05:06:13

  Event ID: 3

  Task category: no

  Level: WARNING

  Keywords: Classic

  User: n/a

  Computer: PC - 1

  Description:

  COM exception runs a command EXECUTE Casl Diags.ThermalDiagnostics = [NO SPECIFIC CASL = 0 x 80041002]: Exception from HRESULT: 0 x 80041002

  ***************************************************************************

  Log name: Application

  Source: HP health Active

  Date: 26/11/2015-05:05:36

  Event ID: 3

  Task category: no

  Level: WARNING

  Keywords: Classic

  User: n/a

  Computer: PC - 1

  Description:

  COM exception running a command GET Casl EmbeddedController.AuditLog.JSON = [NO SPECIFIC CASL = 0 x 80041002]: Exception from HRESULT: 0 x 80041002

  I know it's just a warning and it doesn't seem to affect the performance of my computer that I can say, but I would like to know why it's happening.

  Well, I found the task that updates HPSA in Task Scheduler.  I disabled it by using the Properties window.  On the chance someone may be interested, I'll post how it turns out.

  I hope that I can now keep the HPSA listed for my computer with no additional alert to update again HPSA that generates several warnings and is not compatible with my desktop computer Pavilion p6 - 2220t and/or Windows 7 sp1 64-bit operating system.

  This disabled the HPSA update only not any other.  It seems to be a standalone update for HPSA.

• Trigger several events to a dynamically saved value of signage

  I have different controls for some pumps.

  I want to stop all with an emergency stop button.

  I use the event Structures to manage the user controls.

  In the previous version of my code, I register all events statically in the same vi. But to make the program compact and modular, in the attached version of the code, I use the references to the controls, and I go to a Subvi. In the Subvi I record the events of these references and I link the "event recording refnum" to the terminal dynamic events of the Structure of events.

  Everything works with the exception of the emergency stop.

  I can't use a reference of the emergency stop button to trigger the event, because the emergency stop opens the other files in vi for further confirmation from the user.

  When the emergency stop is confirmed by the user, I use the value property of a signalling to trigger the event stop of all structures event of the subgroup on the screws that control the pumps.

  Previously, I had only a single value of signage to trigger several events, but I saw that I have create the condition of critical competition and the Structure of events first, which handles the event, removes it from the queue, and other Structures of the event can't get the event.

  So, I use as signals of many boolean value pumps as much as I.

  But it does not always raise all events.

  Another detail, it is that I do not use the "Unregister for events function" in all the screws under that have Structures of the event. I saw no difference with this function, or without him...

  Apparently, Miss a clue of a general principle of LabVIEW.

  I join all of the template project.

  The main.vi starts the program.

  The problem of this thread is re-posted more clearly and it is resolved here:

  https://forums.NI.com/T5/LabVIEW/static-vs-dynamic-events-some-dynamic-events-are-flushed/m-p/318239...

• value chain control event does not trigger change

  Hello

  I am trying to scan a barcode with a barcode usb HID scanner. I use a structure of the event to detect the change in the value of a control of the chain. When I scan the barcode, the chain control updates on the front panel, but the event does not fire until I left on my mouse on the front panel. can someone help? See attached vi

  Your barcodes are probably fixed length. When you get an event, check the length. If it corresponds to the length of the barcode, then process the data, otherwise wait for more characters.  This can be treated very quickly in the case of the event.

  Lynn

• Blank composition - several active triggers at the same time?

  I am trying to create a magazine layout Builder. In doing so, I have several PNG files in a blank publication.  I put it right now so that whenever you click on a trigger target Exchange with a different design element.  However, the point of my Configurator is to show how the different elements together, look what means that I have several active triggers at the same time in order to see how to watch them together.  Is there a way to do this?

  I don't think this is a feature that is available in the widget of blank publication provided by muse - there may be an external widget that can do the trick. However, if you want to try to work around him with the blank publication widget, I used this workaround solution myself:

  1. In one layer, make a widget of composition with the single trigger
  2. With layer a locked switch to two layer and do another composition directly on your first widget
  3. Be sure to check "hide target: with click" and "hide all initially" to the two widgets

  See the video provided:

  Dropbox - CompositionDemo.mov

  Hope this helps, or you find a widget on a third party site that allows you to complete your layout.

• Won't COMPLETE event triggers of level FEIELD, even if the user clicks ABOUT on the field in question?

  Hello

  Pls can someone answer my question pls its here is the link

  http://forums.Adobe.com/message/4549663

  Q just quick who:

  Won't COMPLETE event triggers of level FEIELD, even if the user clicks ABOUT on the field in question?

  Thank you

  Hello

  Here is an explanation of the output events of the specification XFA (page 391).

  get in, get out

  Enter the event fires when the field gets keyboard focus, that it was caused by a user action

  (in the field of the tab or by clicking with the mouse) or by a script by setting programmatically the

  Update. It is also raised when a new selection is made from a list of choices, but this behavior can be prevented.

  See below.

  The exit event is triggered when the field loses keyboard focus. It has also triggered whenever there is a new selection

  in a list of choices (followed by an input event), but this behavior can be inhitibited.

  I hope this helps.