Changing the values of control over a key

Similar Questions

• How can I change the values of control based on a file of reading?

  I understand that the controls were only outputs and indicators has only entries, but I'm looking for help to create code that has the capabilities of both. More specifically and, ideally, my façade would allow the user to select an old spreadsheet file to read, and these values of the worksheet would be poster. The user could then change these values to their liking and then submit those twisted values, such as a new file / replaces the old/etc. The important part is the the indicating and control playback in values.

  Thank you

  Need to wire the worksheet values in the local.  The control itself just watches.  What you have wired in your VI sets the control to its current value (of course, a bit pointless).

  

• Effective way to change the values of control?

  Hello

  I've been using LabVIEW a little by chance to work for the last two years and have read at least a number of times that there is generally a better way to use local Variables.

  In this case, I have a configuration file with 10 different digital controls for different levels of power and frequency. By choosing a ring of text I want to automatically populate the values of 'default' for these digital commands for each value of the ring of text data.

  The way that I implement now is that I just a structure dealing with multiple values. Based on the value selected in the ring of text I load 10 constants in ten local variable references.

  Is there an easier and more efficient way to do?

  Thank you

  Steven

  For me it seems to be 'the' valid approach.

  References can offer more flexibility, but suffer from performance degradation. Performance will not be a problem for the 10 digits, only if you place large paintings (a typical graph with 100 points, you can see the loss of performance).

  Only a terminal is faster than the local (assuming you need display the value, if not of course just use a wire). Some exotic use Val Set control invoke note showed a very good area, but I think it's a little too code for just initialization of controls.

  Felix

• change the value of down and Boolean key in a test?

  Hello

  I'm having trouble with my VI, I have a 'next' and 'previous' button (Boolean). I want to run the same event in the cases when: you press the left or right arrow keys, or when you press the previous or next buttons.

  When I add all events in a case of events, I can't determine which key I receive an event with all keys, which is fine, but I really need to know if the hurl right or left is pressed.

  Any who,

  Best regards

  Thijs Boeree

  PS. I also want a cursor and want to control the cursor with the next and previous buttons, but it's perhaps another kind of question...

  Hi ThijsBoeree

  Hope that the next VI fit your requirment. In this VI, I filter keys only for left and right.

  Concerning

  Javed.

• Can I change the values of the variables in the variables view control?

  I want to use the variables view control in Labview. I see only the values, but I can't change the values or create new Variables. Will there be a chance to do?
  I use Labview 8.6.1 and Teststand 4.1.1.

  You must activate the edit mode for the ApplicationMgr, by setting ApplicationMgr.IsEditor to true. Note that you must have at least the license of the custom editor for teststand so that it works (otherwise it will prompt the user to activate a license with these privileges).

  Hope this helps,

  -Doug

• 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. ***

• Is it possible to change the values of particular #define of the various controls in CVI.

  In my application, I have different panels to file single .uir. When I save the .uir file, I get the same values of #define for different controls in different panels. For this reason, I am not able to use these #defines block switch. Is it possible to change the values of #define according to my condition.

  Hi, a little more Wolfgang post. It is the combination of the Panel to manage and control the unique ID: as you know, you can load the same panel more than once, so even if you recover the full chain of PANEL_CONTROL you have duplication. items that exactly identifies a particular control in a particular group are the combination control panel manage AND panel_control ID.

  On the one hand which guarantees more flexibility to your application, you can design only a few panels and reuse them whenever you want, even having some of them loded several times in the same instant. On the other hand, as you have discovered, there is the possibility (Finally, almost certain) duplicated in your app ID.

  To resolve the problem of duplicated IDS you can act in two ways:

  1. If you know that no Panel is never loaded several timer in your application, you can retrieve the name of constant of Panel with GetPanelAttribute (panelHandle, ATTR_CONSTANT_NAME, string); and to distinguish between the name of constant, then switch between control ID

  2. If you happen to have duplicate panels you will need to store each panelHandles in the non-volatile variables, switch between them and then switch between the control ID

  An alternative might be to use Panel callbackData attribute and assign a significant value during the loading of the Panel, other callbackData finally from a control ID. Something like this:

  Loading panels:

  panelHandle = LoadPanel (0, "myfile.uir", PANEL1);

  SetPanelAttribute (panelHandle, ATTR_CALLBACK_DATA, (void *) 1);   Assign different callbackData in each instance

  During the failover between controls:

  void * cbkd;

  GetPanelAttribute (panelHandle, ATTR_CALLBACK_DATA, &cbkd);)
  Switch (cbkd (int)) {}
  case 1: / / elements of the PANEL1
  switch (command) {}
  case PANEL1_NUMERIC:

  your code here
  break;
  case PANEL1_STRING:
  your code here
  break;
  }
  break;
  case 2:
  // .....
  break;
  }

  One final note: it seems to me that all this is necessary in a very limited situation, where you have the same callback called on various panels/controls. Whenever the reminder is unique to a specific panel or controls on a single panel you don't need to work that way.

• 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

• Change the values of the cluster in while loop and in the face at the same time

  Hello.

  I have a little problem in a test program, that I'm working on. I'll try to simplify as much as possible. I have a cluster control that contains two controls A and B. I want to:

  1. switch to update the value of the command A a while loop
  2. allow the user to change the value of the B control through the face, while the loop is running

  To change the value of order in the while loop, I first get the cluster control cluster, update the value of the control for a way to group by name and finally rewrite the cluster in the cluster control.

  The problem is that if the user changes the value of the B control while control that is in the middle of the update, the new value of B control is lost because it was read before updating in the face. Is there a way to get around this?

  DennisBengs wrote:

  1. switch to update the value of the command A a while loop
  2. allow the user to change the value of the B control through the face, while the loop is running

  Then they do not belong in the same cluster.  They are disconnected obviously enough that they do not go hand in hand.

  Where it can get really complicated, it is that you're talking about the user and code changing the same cluster.  It is very dangerous and very difficult to manage.  You might be able to get there with a driving force.  But walk slightly, my friend.

• 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.

• 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.

• 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

• changing the value of text within a column of a PivotTable

  Hi people,

  I get great help from this forum and I am very frequently. This time, I have a question about Tables, how to manipulate fields in a table using JavaScript. The requirement is as follows, I have a Table (100rows x 3columns), and few of them are hidden in the page layout. The first column contains the values of text such as sequential numbers, (the first column is visual index, 1, 2, 3... 100). now, I'm trying to write a script that replaces or substitutes the first column values in the text areas of space. Can you guys help out me if you do a script? or give me some resources where I can manipulate the fields from the table using JavaScript?

  Thanks in advance.

  Hello

  It seems that the table is static and will always three rows during execution. In other words, the user cannot add more lines. If this correct?

  You need not resolve the nodes in this case, because you are referencing fields and specific lines.

  Because the script is located in the square, which is in the same container as the table, the following would erase the contents of the fields in the second column:

  Table1.Row1[1].TextField3.rawValue = null;
  

  Your script accesses an object in the second row called Cell1. This seems to be a text object has no property .rawValue If you want to change the value at run time, you will need to change this to a TextField object.

  In addition, looks like that is not an object in the second row (Row1 [1]) called "Cell1". It seems that the first object is unnamed. This will also cause the script to fail. When debugging, it is useful to use the JavaScript Console to see the (control + J) errors when previewing the form or in Acrobat.

  Who help me?

  Niall

• 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.

• PROBLEM changing the value of a variable in my scene movieclip

  Hello
  I have a problem changing the value of a variable in my scene movieclip. I explain: I combobox on my stage containing the categories, and in the scene that I load an xml file containing links to php files that work with the combobox control.
  On the stage I have a movieclip "camera roll" inside this movieclip on the first image I have a php script file selected in the scene of loading. I use a function with a variable load() "theUrl" inside like this: T.load (theUrl);
  In my scene, I want to change the value of "theUrl" within the film of movieClip. I tried filmstrip.theUrl = url; But it does not work

  the xml file
  <?xml version="1.0" encoding="ISO-8859-1"?>
  <slideshow>
  <area title1="10 Last updated" link1="link1.php"/>
  <area title1="special" link1="link2.php"/>
  </slideshow>

  Here is the code on my stage:

  var link1:Array = new Array();
  var LINK:String;
  var url:String;
  var whoOn:Number;
  whoOn=0;
  var x:XML = new XML();
  x.ignoreWhite = true;
  x.onLoad = function(success) {
  var photos:Array = this.firstChild.childNodes;
  for (i=0; i<photos.length; i++) {
  _root.link1.push(photos[i].attributes.link1);
  }
  url=link1[whoOn];
  filmstrip.theUrl=url;//<<--HERE
  };
  x.load("category.xml");
  
  var cbListener:Object = new Object();
  cbListener.change = function(event_obj:Object) {
  trace(select.selectedItem.label);
  if (select.selectedItem.label == "Last updated") {
  whoOn=0;
  } else if (select.selectedItem.label == "Special") {
  whoOn=1;
  }
  url=link1[whoOn];
  filmstrip.theUrl=url; //<<-----HERE   
  };
  select.addEventListener("change",cbListener);
  
  

  Here is the code inside the clip "film".

  var T:XML = new XML();
  T.ignoreWhite = true;
  T.onLoad = function(xml) { 
  etc etc etc }
  
  T.load(theUrl);    //<<---HERE it still undefined

  the code on the timeline of the film should be placed in a function() (or better, move all your code to the main timeline).  but, if you leave the code on the timeline of the film strip, call the function that contains this code whenever the url changes.