Generation of a value change event internally by the application.

Hello

How to generate events programmaticaly change value by using the value property of the signal. I find the solutions on the forum who have the solution but the problem on these solution is this property node are within a while loop, so even if the value does not change an event is triggered that is not desired in my application. Can someone give a solution for this.

Thank you

Use a feedback node, and a box Structure so that you only write the property node when the value actually changes.

Tags: NI Software

Similar Questions

  • Value change event, be it be programmed to trigger only when the USER changes the value?

    The structure I set up is the following, I have a control in which the user chooses a value when they choose this value, the value change event takes place setting in the device. Then I am bed in unit values and display them in this control via a property node.

    My problem is that whenever I read back a new value in the control, he takes this as a value change event and resets the value within the system, is it possible to make this event don't move when the user changes the value?

    Yes!

    My thoughts are that you use a Value property (signalling) node to display for the control. That will trigger another call to event.

    Use the NO signs of property value node or a local variable.

    Your postal code, if this isn't the case, then we can help you understand what is happening.

  • "Error Out.status": Value change event.

    I get no event that fires when the error on the 'status' change?

    Change event simply write data to a terminal indicator do not have a value.

    The only things that cause a value change event are the user interaction with a control, or by writing to the (signalling) Value property of a control or the indicator.

  • How to reset a while loop based on a value change event?

    Hi all

    I work in a labview program that sends voltage to a laptop via USB 6008, tension is amplified by an op-amp, and then he comes back in the laptop. I created a program and a working circuit, but my current challenge is how to reset the average of the values of voltage coming into the laptop, after that the user changes the digital control (which controls the output voltage). In other words, I need to be able to reset the number of iteration and the sum to 0 each time this happens.

    I looked upward to reset the counters of iteration through shift registers, but I'm not sure it will work in this case, but I'm also not sure how to reset the sum of an array (if possible). I have spent a lot of time to read these forums and tutorials from various sites, so I think it can be done with the correct nesting of the case structures, structures of the event and while loops, but I don't know how. I am new to LV, just started to learn in mid-January, so any help is appreciated.

    Thanks in advance,

    Graeme

    You just need the structure of single event with the bargains.  Use the case of timeout to get your new values and find the average (100ms timeout value and get rid of the wait function (ms)).  Keep the amount and the number of items in the shift registers.  Wire these values through each case of the event.  In the event of changing the value: control, just set the values to 0.  Then add a Stop button value change event to stop your program.

  • How to get the ActiveX component value change event?

    Hi all

    LV 8.6.1

    I try to get the ActiveX component value change event. I covered forum and through examples, but I can't get an idea of how "Recalling vi. For example, in the example 'ActiveX event Callback for IE.vi' it is used "recall vi". I've added an example where the change event of value with the mouse to the bottom of the event are scheduled to the structure of the event. Mouse down event OK work but change the value no. Can anyone describe what I need to add to my example vi who value the change event works fine?

    BR, Jim

    Here is the solution! "Value changed event" is not performed in the structure of the event, but in "Reminder VI".

  • 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

  • How to disable the page for a value change event processing

    I am trying to find a solution to a requirement and is currently working on use cases using the HR schema.

    I have a text entry box in the page that accepts a new Department name.

    The value change listener method on it called a bean of support to verify the uniqueness of the name of the Department. (I'm an iteration through the lines of the Departments table to check if the value is unique)

    Now, I need to disable the page and display an hourglass, so what this control and display a message at the end of the treatment.

    I have this job except that I don't know how I can disable the entire page and see an hourglass.

    I have to use Javascript for this?

    Hello

    I've had this work now after the use of clientListener as below.

    Binding = "#{backingBeanScope.backingBean.IT1} '"

    ID = "it1.

    valueChangeListener = "#{backingBeanScope.backingBean.checkUnique} '"

    autoSubmit = 'true '.

    Validator = "#{backingBeanScope.backingBean.validateDeptName}" > "

    Type = "valueChange" / >

    Thanks for your help.

    References: http://www.oracle.com/technetwork/developer-tools/jdev/1-2011-javascript-302460.pdf

  • value change event not called on the evolution of the value falling down


    Hello

    I have a drop down with values such as... 1-25, 26-50 and so on.

    I need to see the 1-25 as pre-selected when the page is loaded. and when we change the value in the drop down a listner valuechange is called and will service call.

    But when I again selects the default 1-25, at the time where only the value changes listner is not called.

    To show the value that pre-selected I put:-noOfRecSOC.setValue(1);

    noOfRecSOC is the drop down on the screen.

    You must not directly set the value in the UI component. Use the property value drop-down list together for years by default here. Otherwise the value change listener do not notice the change to the original value (as it is never changed).

    You can use a variable temporary pagedef for the value. check out my blog Creating Variables and attribute Bindings to Store values temporarily in the PageDef | JDev & amp; ADF Goodies to find out how to do this.

    Timo

  • Event ID 10016 - the application-specific permission settings do not local Activation permission for the COM with the CLSID server application

    Lately, I'm getting this system error a lot now that I've upgraded to Windows 8 Pro is an event DistributedCom 10016 ID. Here is the text of the error:

    The application-specific permission settings do not local Activation permission for the COM with the CLSID server application

    {D63B10C5-BB46-4990-A94F-E40B9D520160}

    and APPID

    {9CA88EE3-ACB7-47C8-AFC4-AB702511C276}

    the user NT AUTHORITY\SYSTEM SID (S-1-5-18) from the address LocalHost (using LRPC) running in the container of the application unavailable SID (not available). This security permission can be modified using the Component Services administrative tool.

    Anyone has an idea why I get this error?
    Walt

    Same thing here. Grayed. Windows 8.1 seems to fill the observer of events with many more errors than previous versions.

    Edit: OK, discovered why it is grayed out. There are 2 reg key, you must set permissions before going to the Configuration of DCOM in component services. The CLSID key and the APPID key.

    From another forum, although it applies to a different application, same principle:

    1. open Regedit.
    2. go in HKEY_Classes_Root\CLSID\ * CLSID *.
    Note: * CLSID * stand for the ID that appears in your event viewer error. In your case, it is {C2F03A33-21F5-47FA-B4BB-156362A2F239}.
    3. right-click on it and select authorization.
    4. click on Advance and change owner to administrator. Also click on the box that will appear below the threshold of owner.
    5. apply a full control.
    6. close the tab, then go to HKEY_LocalMachine\Software\Classes\AppID\ * APPID *.
    Note: * AppID * is the ID that appears in your event viewer. In your case, it is {316CDED5-E4AE-4B15-9113-7055D84DCC97}.
    7 right-click on it and select authorization.
    8. click on Advance and change the owner to administrators.
    9. click on the box that will appear below the line owner.
    10. click on apply and grant full control to the administrators.
    11. close all tabs and navigate to the administration tool.
    12. open component services.
    13. click on the computer, click my computer, and then click DCOM.
    14 find the corresponding service that appears on the display of the error.
    15. right-click on it, and then click Properties.
    16. click the Security tab, and then click Add a user. Add the SYSTEM and then apply.
    17. check enable local.

    Then use the relevant keys here and the DCOM Config utility should give you access greyed onareas:

    CLSID:

    {D63B10C5-BB46-4990-A94F-E40B9D520160}

    and APPID

    {9CA88EE3-ACB7-47C8-AFC4-AB702511C276}

  • ADF: Change of name of the application

    Hello world

    I use Jdev 11 G.

    I developed an ADF application with 7 pages.
    the application name is "KumarAppliaction", then the url that is generated after deployment includes the name of the application "KumarAppliaction".
    But now my client wants me to change the name of the application to "DevelopedApplication".
    How can I achieve this?

    In the properties of the application, there is an option called change of name request, so I've renamed my request to "DevelopedApplication" and
    then I deployed again my request but
    the name of the application in the url is always "KumarAppliaction".

    whatelse I have to change?

    Please let me know one of your valuable suggestions.

    Thank you.
    .

    Hello

    I think you mean the path of the context of Java EE. Open the view controller (and the model project) properties and go to the section "Application of Java EE. Change the name of the application and the values of root of context to change the name in the URL

    Frank

  • get the return value of a method of the application module in the workflow

    Hello

    I use jdeveloper 11.1.1.7.0

    I defined a method (return type is useful java card) in the Module of the Application and add this method to the client interface.

    also I have a workflow and in this TF firstly I should execute this method and put the return value for the pageFlowScope parameter. I know that to use this method as a methodCall and set it as an activity by default, but I don't know how to get the return value before entering the jsff page and set the pageFlowScope parameter.

    Habib

    Concerning

    When you add the activity to the way to deal, there are 'Return value' property that you can set to #{pageFlowScope.yourVariable}

    Dario

  • How to listen for events that hit the application?

    How to register an event listener in a subcomponent to listen to events that spread at the Application level?

    For example: Comp1 raises an event that is spreading to the hand. How to register Comp2 listening to this event?
    Main.MXML (Application)
    -Mgr1
    -Ordi1
    -Mgr2
    -Comp2

    The code that would be placed in the component and the hand would be greatly appreciated.
    Thank you.

    Try this:

    . AddEventListener (Application.application as Application)...

    from the inside of any component.

    Tim

  • [GUI] Cannot filter value change events

    Hello

    In my front panel, there are some controls as in the following image:

    I'm not able to do the following:

    when I change the 'value' by arrows button (or by the arrows), I want to change its property "increment" according to the "multiplier value".

    If (multiplier == 1.0)

    value. Increment = 1;

    else value.increment = 0.1

    If I use the "change value" event on the button value, I miss the first update, because the event is processed AFTER the rendering of the GUI of the button. I tried different events, mouse enter and mouse down? but without success.

    All suggest?

    Thank you

    Hi Pierre,.

    See attachment

    I hope that your first time, click on the arrow is now resolved?

  • Value change event

    Hello

    As you can see the attachment, I have a 'CNC' (X) and a 'digital indicator' (Z) whose value is changing by a "numerical control" (Y).

    When I run the code, and change 'X' event produced a notification but when I change the value of the indicator 'Z', using the 'Y', the Structure of the event produced no notification.

    Why is this and how should I be notified when the value of 'Z' has changed?

    Best regards

    VALENTINE'S DAY

    Hello V.,

    attached to something that would work.

    Depending on the nature of your request, there must be a better way to do what you need.

    Normally when I tend to use this property node I start questioning my design.

  • How can I determine who controls a cluster fired < all > value change event?

    Hi all

    I have a cluster (control) that looks like this:

    It is a single channel of data, consisting of a gauge with two needles (set point and actual), a separate digital control related to the gauge (fixed point data type), three combo boxes and a button. When the user interacts with one of these items, I generate a Modbus packet to retrieve / set the data. My current implementation uses events, one for each single command in the channel - and I have 5 channels. Is it possible to use the parameter in the event handler, and then using the source node (or similar) to determine the control that has been actually clicked? Then, I might be able to use an array of clusters for further simplification. I'm fighting to understand the source node.

    Thanks for any help

    Ray

Maybe you are looking for