Why no event to CHANGE the VALUE?

Similar Questions

• Why doesn't my event structure when the value of the Boolean indicator changes.

  Please see the code below

  Hi Nagaa,

  Here, it's in 2009. You can create an event for change of value indicators directly, you may use the property value signal node as in the attached vi.

  Hope this helps you. Any questions let us know.

• 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.

• Management while changing the value or by clicking on the button events

  Hi all
  
  I'm working on Jdeveloper 11.1.1.5.
  I have a necessary requirement where I have a textbox and a button.
  Now, if a user changes the value of the text box then I need to display a dialog to the user for confirmation if he wants to continue or not.
  And when the click on the button that I perform my logic and engage in the database.
  NOTE:-I'm going to open this dialog box on the valueChangeEvent of the text box.
  
  Case 1: -.
  
  User displayed on the dialog page and enter a value in the textbox control, and a tab on the ground, the value change occurs. -> OK
  
  Case 2: -.
  
  The user enter a value into the textbox control and do not tab on the field and directly click the button. In this case, actually valueChange and button code both runs at the same time. I mean, the user clicks the button, the dialog box get, but my logic is also performed. -> INCORRECT (ISSUE)
  
  How should I limit the logic of the button should be executed until the dialog box has been established and the user has confirmed.
  Please suggest!
  Kind regards
  Shah

  Hi Shah,

  You can try something like this:

  AP

• How can I change the value of a control on front panel?

  On the front panel, I'm doing a complex control that consists of a Slider control and control of the digital inputs. Both controls display the same information and either may be used for entry. When changing value, I want the other control to display the same value.

  How can I change the value of a control on front flap when another control changes the value? I know how to use a structure of the event to detect value has changed, but I do not know how to impose control on front panel to change its value in the block diagram.

  Why do you not use a digital display on the slider, and no code is required:

  

  EDIT: Yes, he said. ***

• Change the value to trigger record data for 1 s sampling frequency of 50 KHz

  Hello

  I have a VI with NI9215 and cDAQ-9178 chassis hardware. The function of the VI came out an instruction to RS232 interface and record 1 second of data every time that the set point is changed.

  The procedure is

  (1) modify the policy to the flow regulator

  (2) wait 2 seconds.

  (3) record of 4 channels for one second to the sampling frequency of 50 KHz.

  At present, the problem is for the first edition of this program, two seconds (rather than) data was saved and corn, the error message 200279.

  

  II. I revised for the second edition of the structure of the producer and the consumer who can increase the speed of the buffer.

  The question is how to configure the trigger to start the backup of data and limit data save for one second whenever the set point value changes.

  

  (1) which edition is best for my application?

  (2) how to trigger the data record?

  (3) how to record only a second of data?

  I also checked this announcement and the elapsed time seems not to work for this case.

  Any help would be greatly appreciated!

  Melody

  Hello

  you have not used properly the nodes property.

  1. replace the case structure in the first loop, with DAQmx features, with a structure of the event. Change the event fires for a worth of control of the setpoint change.

  Edit: as stated in your first post, use the structure of the event, but put inside the while loop.

  2. DO NOT connect error output from the stop command property node. Replace it with a local variable for the stop button.

  Try these and let me know.

• change the value of the button cluster

  Hi all

  I wrote a program that has 5 poles and all groups contain a STOP"" button. the program can stop when the button is pressed.

  When I press the button, the value of the button goes to False and else False. I want to come True. so I tried using the 'value' property and set the value "False".

  but it is still true.

  I use event structure to see that the value changes. and set to 'Stop the value changes' all buttons in a single event.

  How can I change the value of the false button?

  Thank you

  Ritesh

  
  

• How to change the value of string clustered, to implement using the node value of property instead of writing directly on the flow of data or using the variable

  new to labview :-) and I have a problem when I want to change the value of a string in bunches, and I want to implement this using the node value of property instead of writing directly to the stream or by using the variable, enclosed is the picture.   No matter, I have change in cluster (control) or value of Popery out (indicator) cluster, the value (sensor 7) dataflow keeps unchanged even I gave the new value by value of property node. Thank you to give me some advice about this.

  

  Hi GerdW

  Thanks a lot for your answer. The reason I'm stubbornly tring to break the flow of DATA is: we have a test system that have about 100 screws, they have a few connected flow, some of them will be unbundling a cluster dataflow chain to check the value in order to make the different cases.  Now I want to insert user event by changing the control and influential cases during run time.

  As I initially uses a global variable (to control cases) instead of unbundle string data flow, it works well.  But then, I found there are a lot of screws that are using the string unbundle.  One of the 'lazy' means, I tried is to change the value via the property node (because that way, I did not need to find all the places where using the unbundle string and replace them with the global variable), then I noticed a problem with "dataflow", the value in the stream of cluster in fact will not be changed by changing the value of the property node.

  I did a test with VI simple (like the picture in last post), and after reading your advice, I tell myself that I need to understand the concept of "DATAFLOW" in labview, it seems that my "lazy" way can not work in this scenario.

  I have attached the criterion VI here, have you furthur suggestions on what I can do in this case?

  Mant thanks!

  Minyi

• Changing the value of ApplicationIndicator

  Hello

  Adds an icon in the homepage of BB using ApplicationIndicator and when I try to change the value from another file using setValue() get "null pointer exception". Do not know how to proceed with him.

  Add the home page icon

  ApplicationIndicatorRegistry reg = ApplicationIndicatorRegistry.getInstance();
              EncodedImage image = EncodedImage.getEncodedImageResource("Indicator.png");
              ApplicationIcon icon = new ApplicationIcon( image );
              indicator = reg.register( icon, false, true);
              indicator.setIcon(icon);
              indicator.setVisible(true);
  

  Changing the value

  ApplicationIndicatorRegistry reg = ApplicationIndicatorRegistry.getInstance();
                      ApplicationIndicator AppIndicator = reg.getApplicationIndicator();
                      AppIndicator.setValue(5);
  

  I'm missing something here...

  Pls help

  TIA

  Shiv

  incoming call runs within the phone application. the phone application will not have access to your indicator of demand.
  Use global events, the Bank of execution or a callback mechanism to communicate with your application and run change it.

• How to change the value of a color picker?

  Hi *.
  
  I am currently working on a small project and I would use the colorpicker. When I initialize the colorpicker, the widget is updated and displays the correct color, but when I try to change the value when running, nothing happens. I missed something?
  
  Thank you very much
  

   
  package javafx.tests.colorpicker;
  
  import javafx.application.Application;
  import javafx.event.ActionEvent;
  import javafx.event.EventHandler;
  import javafx.geometry.Insets;
  import javafx.scene.Scene;
  import javafx.scene.control.Button;
  import javafx.scene.control.ColorPicker;
  import javafx.scene.layout.StackPane;
  import javafx.scene.layout.VBox;
  import javafx.scene.paint.Color;
  import javafx.stage.Stage;
  
  public class ColorPickerChangeColor extends Application {
  
       public static void main(String[] args) {
            Application.launch(args);
       }
  
       @Override
       public void start(Stage stage) throws Exception {
  
            VBox vbox = new VBox();
            vbox.setPadding(new Insets(10));
            vbox.setSpacing(10);
            Button button = new Button("Press me.");
            final ColorPicker colorpicker = new ColorPicker(Color.BLUE);
  
            button.setOnAction(new EventHandler<ActionEvent>() {
                 @Override
                 public void handle(ActionEvent arg0) {
                      colorpicker.setValue(Color.YELLOW);
                      System.out.println("Set color of the picker to yellow.");
                 }
            });
  
            vbox.getChildren().add(colorpicker);
            vbox.getChildren().add(button);
  
            StackPane root = new StackPane();
  
            root.getChildren().add(vbox);
            stage.setTitle("ColorPicker");
            Scene scene = new Scene(root, 200, 200);
  
            stage.setScene(scene);
            stage.show();
  
       }
  }

  Published by: 963445 on January 3, 2013 12:23

  Addition of

  colorpicker.fireEvent(new ActionEvent());
  

  After you set the color seems to be a workaround; Although I don't know how it works if the colorpicker popup is displayed.

• Check box to change the value of the field and reveal hidden text

  Hello

  I need to change a value in a field when you press a checkbox

  the default value can be $ 10 in 'formfield1 '.

  But when the checbox is checked, the value of 'formfield1' must spend $ 8

  I also need a reval text function in "textfield2' of the text hidden to visible.

  Is it still possible to combine in a box?

  I found a code on the forum and changed it, but it does not work as expected, it affects the field, it shouldn't and it behaves a bit funny, here is the code to calculate.

  I also tried to change the value of Off to On, but who has not reversed the procedure than I hoped.

  Well its a start, maybe someone can understand a give me help on the way?

  ________________________________

  custom for the discount calculation

  var nDiscount = 2;

  name of the Sub total field

  var cSubTotal = "formfield1";

  name of the non-Discount checkbox

  var cbNonDiscount = "CheckBox1";

  default value for the non-Discount

  Event.Value = 10;

  see if the purchase is with discount or not non-Discount

  If (this.getField ("cbNonDiscount") .value == 'Off') {}

  Event.Value = this.getField ("cSubTotal") .value - nDiscount;

  }

  put an end to a custom calculation

  Ah, if you want the calculation to take place when the box is checked, use this:

  If (this.getField (cbNonDiscount) .value! = "Off") {}

  Instead:

  If (this.getField ("cbNonDiscount") .value == 'Off') {}

• Change the value of the Variable presentation

  Hello
  If I want to change the value of the variable presentation, where I can change. Means that I need to check the value of the variable presentation and then I need to change the value of the variable presentation.
  I need help from anyone.
  Thanks in advance.

  When all the choices is selected past the value zero in the variable of presentation...

  Why not consult especially column by making it is fx as a presentation...

  in any case, if need be like that you can't pass null (persons) to your title. You should change it accordingly...

  create a column in the criteria, changing it is fx to: case when ' @{Pers_Var}' is null then 'people' else ' @{Pers_Var}' end

  Call the location of the column with the text in narrative mode, then add it to made available...

• Change the value in the click of a mouse

  first images of ihave 3 coded with AS3

  var Frame1 has i = 0;

  then frame2 AS3 buttons (inserted action)

  function Click(e:MouseEvent):void {}

  gotoAndPlay (2); var i = 1;

  }

  and the last has (without click, this one works very well)
  
  gotoAndPlay (2); i ++ (but I have = 0; in one click)
  
  How can I change the value? (and it works very well on AS2)

  Section 1:

  Fl.controls import. *;
  var b:Button = new Button();
  stage.addChild (b);
  var i: int = 1;

  b.addEventListener (MouseEvent.CLICK, click);

  Section 2:

  function Click(event:MouseEvent):void {}
  i = 1;
  trace (i);
  }

  Section 3:

  i ++ ;
  trace (i);
  gotoAndPlay (2);

  Your problem is:

  function Click(e:MouseEvent):void {}

  gotoAndPlay (2); var i = 1;

  }

  Order var create new var i in function Click. This 'i '! = 'i', which is used for calculations.

• change the values of 'choiseListe' with javascript

  Dear Sir

  Is it possible to change the values of 'choiseListe' with javascript.

  Example they have a choseListe:

  Country / / / values

  United States us

  France fr

  Sp Spain

  When he clicks in a botton I whant to change this choceListe:

  Country / / / values

  My Morocco

  PT Portugal

  ............

  Thank you

  Hello

  Drop-down lists and drop-down menus can be scripted against without much to safely.

  You would need something like that in the click event of the button:

  listbox1.rawValue = null; //clear previous choice
  listbox1.clearItems(); //clear the list items
  listbox1.addItem("Moocco", "ma"); //add new list items
  listbox1.additem("Portugal", "pt");
  

  Hope that helps,

  Niall

• Why itunes continue to change the type of my music?

  Why doesn't iTunes change the kind of some of my music to a number of 'Rock' to '17' to play, more importantly, how do I stop doing that?

  If it comes to music that you are streaming, or was accompanied in iCloud music library or iTunes Match, then there is not much that can be done. That's how it is coded by the distributor in iTunes. You can report this error directly to Apple via this link http://www.apple.com/feedback/