Drag and drop "objects" in labview runtime

Hello,
At the moment I'm looking for a solution to make content movable in de runtime.
I'm working on a test sytem that can be connected to many different systems. It wil be great to give the end user the opportunity to place the components in the order they will be in the system without having any labview programming experience.
A simple example to make my problem clear:
In the front panel there is only one indicator, just placed on some position on the screen
I want the enduser give the opportunity to place this indicator to the position he want.
Is it possible to make something like this?
Thanks in advantage!
Solved!
Go to Solution.

To make something more clear:
I want to make some "objects" in the user interface dragable.
See screenshots for my idea. The end user should be able to place the indicators on the screen where ever he or she wants.
Attachments:
moveable controls1.JPG ‏16 KB
moveable controls2.JPG ‏51 KB

Similar Messages

How to add text to a drag and drop object

Hi everyone, I am quite a beginner with Flash so do excuse
me. First, I am not sure if what I want to achieve may actually be
impossible with Flash. I presently use MX 2004, but will shortly be
upgrading to CS3. But if you know the answer for MX 2004 that would
be really useful for now.
I am writing a digital fiction story, and I want to create
drag and drop objects. This I have managed to do. But I would like
these drag and drop objects to also reveal text when they are
actually pressed on. I have had no success so far in being able to
achieve the two effects together.
Does anyone know how I can achieve this? If, by chance, you
know the action script that would be great. If you can explain to
me in simple terms how I can achieve this I really would be
grateful.
Thanking you,
Mary

The script I posted would work on the main timeline - not in
the timeline of the clip itself.
So you made a movieclip out of the image and gave it the
instance name "myclip". That's good.
You edited that clip and added a dynamic text box with
instance name "mytext". Be careful not to confuse the "instance"
name of the text box with the "Var:" name. "myclip" should be the
instance name. Also be careful to make sure you uncheck the
"selectable" box. Edit your clip and click on the textbox to select
it and look in the properties panel. There should be a button with
Ab on it. If it is white background (highly likely), click it so it
is not white. If the text is selectable, it will interfere with
your button functions.
While there is nothing wrong with creating nested clips
within your movieclips, unless you plan to target them for
something, there is no benefit. The only thing that needs an
instance name inside the myclip is the textbox (based on what you
are trying to do).
You don't need any actionscript in the movieclip itself. If
you can learn to place all your AS on the root timeline, you will
be well ahead.
If you placed that AS inside the clip, Flash wouldn't know
what to do with it.
Technically you can place the AS inside the clip on the layer
you created but, if you did that, you would need to modify the
script to the following:
this.onPress = function() {
this.mytext.text = "stop pressing so hard";
startDrag(this);
this.onRelease = function() {
this.mytext.text = "";
stopDrag();

Rollover text on a drag and drop object

Hi folks, I wondered if someone could help me with this
problem. Last week I was adding text to a drag and drop object on
the press of a button and release of a button. This week, I am
trying to get the drag and drop object to reveal text when the
mouse rolls over it and again when the mouse releases it. I thought
it should be pretty easy to fathom out the script for this, because
I was given a lot of help last week. But I put in the attached
code, and the object does not drag and drop, and neither does it
show any text when the mouse rolls over it and off it.
Can anyone tell me what I am doing wrong?
Thanking you,
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The script I posted would work on the main timeline - not in
the timeline of the clip itself.
So you made a movieclip out of the image and gave it the
instance name "myclip". That's good.
You edited that clip and added a dynamic text box with
instance name "mytext". Be careful not to confuse the "instance"
name of the text box with the "Var:" name. "myclip" should be the
instance name. Also be careful to make sure you uncheck the
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Ab on it. If it is white background (highly likely), click it so it
is not white. If the text is selectable, it will interfere with
your button functions.
While there is nothing wrong with creating nested clips
within your movieclips, unless you plan to target them for
something, there is no benefit. The only thing that needs an
instance name inside the myclip is the textbox (based on what you
are trying to do).
You don't need any actionscript in the movieclip itself. If
you can learn to place all your AS on the root timeline, you will
be well ahead.
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what to do with it.
Technically you can place the AS inside the clip on the layer
you created but, if you did that, you would need to modify the
script to the following:
this.onPress = function() {
this.mytext.text = "stop pressing so hard";
startDrag(this);
this.onRelease = function() {
this.mytext.text = "";
stopDrag();

Drag and Drop objects with JavaFX properties

Has anyone tried to implement drag and drop functionality with objects containing JavaFX properties? The issue I'm running into is that the objects appear to need to be serializable, and the JavaFX properties are not serializable. I can implement Externalizable instead of Serializable, and basically serialize the values contained by the FX properties, but of course I lose any bindings by doing this (as the listeners underlying the bindings are not serialized).
The [url http://docs.oracle.com/javafx/2/api/javafx/scene/input/Clipboard.html]javadocs for Clipboard state "In addition to the common or built in types, you may put any arbitrary data onto the clipboard (assuming it is either a reference, or serializable. See more about references later)" but I don't see any further information about references (and at any rate, this doesn't really make sense since anything that's serializable would be a reference anyway). Is there a special DataFormat I can use to specify a reference in the local JVM so the reference gets passed without serialization?
I know this might not make sense without a code example; I just thought someone might have come across this closely enough to recognize the problem. I'll try to post a code example tonight...

Here's pretty much the simplest example I can come up with. I have a real-world example of needing to do this, but the object model for the real example is quite a bit more complex.
For the toy example, imagine we have a list of projects, some employees, and we want to assign each project to one or more employees. I have a Project class with a title and assignee. (In real life you can imagine other properties; due date, status, etc.) I'll keep a ListView with a bunch of unassigned projects (titles but assignees equal to null) and then a ListView for each of the employees.
To assign a project to an employee, the user should be able to drag from the "master" list view to one of the employee list views. When the project is dropped, we'll create a new project, set the assignee, and bind the title of the new project to the title of the project which was dragged. (Remember we want to be able to assign a single project to multiple employees.)
So here's the first shot:
A couple of simple model classes
Project.java
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
public class Project {
     private final StringProperty title ;
     private final ObjectProperty<Employee> assignee ;
     public Project(String title) {
          this.title = new SimpleStringProperty(this, "title", title);
          this.assignee = new SimpleObjectProperty<Employee>(this, "assignee");
     public Project() {
          this("");
     public StringProperty titleProperty() {
          return title ;
     public String getTitle() {
          return title.get() ;
     public void setTitle(String title) {
          this.title.set(title);
     public ObjectProperty<Employee> assigneeProperty() {
          return assignee ;
     public Employee getAssignee() {
          return assignee.get();
     public void setAssignee(Employee assignee) {
          this.assignee.set(assignee);
     @Override
     public String toString() {
          String t = title.get();
          Employee emp = assignee.get();
          if (emp==null) {
               return t;
          } else {
               return String.format("%s (%s)", t, emp.getName()) ;
}Employee.java
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
public class Employee {
     private StringProperty name ;
     public Employee(String name) {
          this.name = new SimpleStringProperty(this,"name", name);
     public StringProperty nameProperty() {
          return name ;
     public String getName() {
          return name.get();
     public void setName(String name) {
          this.name.set(name);
}and the application
DnDExample.java
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.DataFormat;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.Callback;
public class DnDExample extends Application {
     private static final DataFormat PROJECT_DATA_FORMAT = new DataFormat("com.example.project"); // is there something special I can use here?
     @Override
     public void start(Stage primaryStage) {
          final HBox root = new HBox(5);
          final ListView<Project> allProjects = new ListView<Project>();
          final Employee fred = new Employee("Fred");
          final Employee ginger = new Employee("Ginger");
          final ListView<Project> fredsProjects = new ListView<Project>();
          final ListView<Project> gingersProjects = new ListView<Project>();
          final VBox employeeLists = new VBox(5);
          employeeLists.getChildren().addAll(new Label("Fred's Projects"), fredsProjects, new Label("Ginger's Projects"), gingersProjects);
          root.getChildren().addAll(allProjects, employeeLists);
          allProjects.setCellFactory(new Callback<ListView<Project>, ListCell<Project>>() {
               @Override
               public ListCell<Project> call(ListView<Project> listView) {
                    return new AllProjectListCell();
          allProjects.setEditable(true);
          final EventHandler<DragEvent> dragOverHandler = new EventHandler<DragEvent>() {
               @Override
               public void handle(DragEvent dragEvent) {
                    if (dragEvent.getDragboard().hasContent(PROJECT_DATA_FORMAT)) {
                         dragEvent.acceptTransferModes(TransferMode.COPY);
          fredsProjects.setOnDragOver(dragOverHandler);
          gingersProjects.setOnDragOver(dragOverHandler);
          fredsProjects.setOnDragDropped(new DragDropHandler(fred, fredsProjects.getItems()));
          gingersProjects.setOnDragDropped(new DragDropHandler(ginger, gingersProjects.getItems()));
          allProjects.getItems().addAll(new Project("Implement Drag and Drop"), new Project("Fix serialization problem"));
          Scene scene = new Scene(root, 600, 400);
          primaryStage.setScene(scene);
          primaryStage.show();
     public static void main(String[] args) {
          launch(args);
     private class DragDropHandler implements EventHandler<DragEvent> {
          private final Employee employee ;
          private final ObservableList<Project> itemList;
          DragDropHandler(Employee employee, ObservableList<Project> itemList) {
               this.employee = employee ;
               this.itemList = itemList ;
          @Override
          public void handle(DragEvent event) {
               Dragboard db = event.getDragboard();
               if (db.hasContent(PROJECT_DATA_FORMAT)) {
                    Project project = (Project) db.getContent(PROJECT_DATA_FORMAT);
                    Project assignedProject = new Project();
                    assignedProject.titleProperty().bind(project.titleProperty());
                    assignedProject.setAssignee(employee);
                    itemList.add(assignedProject);
     private class AllProjectListCell extends ListCell<Project> {
          private TextField textField ;
          private final EventHandler<MouseEvent> dragDetectedHandler ;
          AllProjectListCell() {
               this.dragDetectedHandler = new EventHandler<MouseEvent>() {
                    @Override
                    public void handle(MouseEvent event) {
                         Dragboard db = startDragAndDrop(TransferMode.COPY);
                         ClipboardContent cc = new ClipboardContent();
                         cc.put(PROJECT_DATA_FORMAT, getItem());
                         db.setContent(cc);
                         event.consume();
               this.setEditable(true);
          @Override
          public void updateItem(final Project project, boolean empty) {
               super.updateItem(project, empty);
               if (empty) {
                    setText(null);
                    setGraphic(null);
                    setOnDragDetected(null);
               } else if (isEditing()) {
                    if (textField != null) {
                         textField.setText(getItem().getTitle());
                    setText(null) ;
                    setOnDragDetected(null);
                    setGraphic(textField);
               } else {
                    setText(project.getTitle());
                    setOnDragDetected(dragDetectedHandler);
          @Override
          public void startEdit() {
               super.startEdit();
               if (!isEmpty()) {
                    textField = new TextField(getItem().getTitle());
                    textField.setMinWidth(this.getWidth()-this.getGraphicTextGap());
                    textField.focusedProperty().addListener(new ChangeListener<Boolean>() {
                         @Override
                         public void changed(
                                   ObservableValue<? extends Boolean> observable,
                                   Boolean oldValue, Boolean newValue) {
                              if (! newValue) {
                                   getItem().setTitle(textField.getText());
                                   commitEdit(getItem());
                    setText(null);
                    setGraphic(textField);
                    setOnDragDetected(null);
          @Override
          public void cancelEdit() {
               super.cancelEdit();
               if (!isEmpty()) {
                    setText(getItem().getTitle());
                    setGraphic(null);
                    setOnDragDetected(dragDetectedHandler);
               } else {
                    setText(null);
                    setGraphic(null);
                    setOnDragDetected(null);
          @Override
          public void commitEdit(Project project) {
               super.commitEdit(project);
               if (!isEmpty()) {
                    setText(getItem().getTitle());
                    setGraphic(null);
                    setOnDragDetected(dragDetectedHandler);
}If you try to drag from the list on the left to one of the lists on the right, it will fail pretty quickly and tell you that the data need to be Serializable.
Simply adding "implements Serializable" to the Project and Employee classes doesn't work, as you find that SimpleStringProperty and SimpleObjectProperty are not Serializable. So instead I can use Externalizable:
public class Project implements Externalizable {
@Override
     public void writeExternal(ObjectOutput out) throws IOException {
          out.writeObject(title.get());
          out.writeObject(assignee.get());
     @Override
     public void readExternal(ObjectInput in) throws IOException,
               ClassNotFoundException {
          setTitle((String)in.readObject());
          setAssignee((Employee)in.readObject());
}and
public class Employee implements Externalizable {
     @Override
     public void writeExternal(ObjectOutput out) throws IOException {
          out.writeObject(name.get());
     @Override
     public void readExternal(ObjectInput in) throws IOException,
               ClassNotFoundException {
          setName((String) in.readObject());
}This makes the drag and drop work, but if you drop a project on one of the employee lists, then edit the project title in the master list, the binding is not respected. This is because deserialization creates a new SimpleStringProperty for the title, which is not the property to which the title of the new Project object is bound.
What I really want to do is to be able to drag and drop an object within the same JVM simply by passing the object by reference, rather than by serializing it. Is there a way to do this? Is there some DataFormat type I need?

Drag and Drop objects in web app

Hi all,
I have a web application in which i have an option to delete the listed items. now i have to place an image of recycle bin on the webpage and to give the utility of delete operation by only dragging the object from list and droping it into recycle bin. How can i do this? Is there any body who have already done this? Any reply will be welcomed.
And guys no reply for my validation and 'scope' questions.
Thanx in advance.

http://www.googleisyourfriend.com/search?q=javascript+drag+and+drop&meta=

Drag and drop objects in Captivate 4

Hi,
Is it possible to have a user click and drag an object on a slide in captivate 4?
For e.g. - in a matching type-quiz, instead of creating the usual quiz - I want a user to click and place the correct object in the correct box. Can this effect be achieved?
Thanks!

With either (or both) of these Drag and Drop widgets, yes: http://www.infosemantics.com.au/dragdrop

Drag and drop object in other object

Greetings!
I'm asking myself this question:
I have this graph in my application and a panel.
The graph is draggable. How can I drag and drop the graph
into the panel so that the graph becomes a child of the panel?
Thanks!

Jeff Bohrer wrote:
smercurio_fc wrote:
Unlike your other annoyance, this one definitely always annoys me.
Note: The LabVIEW project explorer window isn't the only IDE that does this. Visual Studio does the same thing when you drag and drop a file onto the Solution Explorer window and the target is a folder. So, the behavior is not unique to LabVIEW.
Thought this would be today! Thank YOU
You're quire welcome. I do it all for you.
X wrote
CAR anyone?
I don't think this needs a CAR, since it's not a bug. It just works that way, so there's nothing to fix. Posting an idea would be the better way to handle this.

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Hi! This is really driving me crazy.
I'm trying to create a mind mapping online app for thinking maps. See here for an example of thinking maps.
I want to let users create textfields during runtime and drag and drop them. I managed to do this using createTextField and eventListener.
I also want to let users insert a shape (let's say a brace) to the swf and drag them around and resize them using handlers.
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Hi! This is really driving me crazy.
I'm trying to create a mind mapping online app for thinking maps. See here for an example of thinking maps.
I want to let users create textfields during runtime and drag and drop them. I managed to do this using createTextField and eventListener.
I also want to let users insert a shape (let's say a brace) to the swf and drag them around and resize them using handlers.
Thing is:
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Highlight destination of drag and drop object

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destination, is it possible for the destination hotspot to
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see screenshot:
http://www.lshtm.ac.uk/dl/programme/sample/highlight.gif
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Look at the Overlapping function - set something to trigger
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true. That may be hard to do when the mouse is down dragging
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Erik
webacity wrote:
> If drag an object in a drag and drop interaction to its
destination, is it
> possible for the destination hotspot to highlight itself
> see screenshot: <a target=_blank
class=ftalternatingbarlinklarge
> href="
http://www.lshtm.ac.uk/dl/programme/sample/highlight.gif
> As">
http://www.lshtm.ac.uk/dl/programme/sample/highlight.gif
> As</a> you can see as I drag object 0.09 to its
destination, the destination
> site highlights itself to yellow. I want to create a
similar effect in
> authorware
> thanks in advance
> Jon
>
Erik Lord
http://www.capemedia.net
Adobe Community Expert - Authorware
http://www.adobe.com/communities/experts/
http://www.awaretips.net -
samples, tips, products, faqs, and links!
*Search the A'ware newsgroup archives*
http://groups.google.com/groups?q=macromedia.authorware
*The Blankenship Caveat: Note that direct linking to http
content
through any Authorware icon will likely fail if a proxy
server is present!*

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Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find nothing has changed after you complete it.
Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select “Help” from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.
While logged in as Guest, you won’t have access to any of your personal files or settings. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
As Guest, try the action. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.

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Hello,
I am new to dreamweaver but have a specific request to create a website with what I can only describe as a 'Dragging' option on objects.
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http://jqueryui.com/demos/draggable/
Nancy O.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
http://alt-web.com/
http://twitter.com/altweb

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Is it possible to select and Drag & Drop Graphical Objects from One Applet in one Browser window to Applet in another Browser window?
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Ohhhhhhhhhhhhhhhhhhhhhhhhhh
thanks a lot Mr. Harrpreeeeeeeeeeeeeeet

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Can any one assist? I have a box that has six labels that can be dropped on targets on the box. I have all this in place but I want to be able to have label 2 drop onto target 2 and 3, and likewise label 3 drop on to target 2 and 3. All others drop onto their specific targets. This is the script so far but ony for matching object to target. Please be gentle, i'm new to this!!
event.target.stopDrag();
var myTargetName:String="target" + event.target.name;
var myTarget:DisplayObject=getChildByName(myTargetName);
if (event.target.dropTarget!=null&&event.target.dropTarget.parent==myTarget)
Can anyone assist please?

What you could do is have an array assigned to each dragged item that defines the allowed targets for each dragged item and check if the dropTarget is in the array using the indexOf() method.

Drag and drop objects to multiple targets

i have tried a lot of time to make my project into a success... However, it never work... i will be very appreciate with your kind help... please
this is the link to my swf... all objects are accepted when i drop it into the plastic bin...
http://megaswf.com/serve/77800/
var startX:Number;
var startY:Number;
var counter:Number = 0;
two.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
two.addEventListener(MouseEvent.MOUSE_UP, dropIt);
one.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
one.addEventListener(MouseEvent.MOUSE_UP, dropIt);
three.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
three.addEventListener(MouseEvent.MOUSE_UP, dropIt);
twotwo.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
twotwo.addEventListener(MouseEvent.MOUSE_UP, dropIt);
oneone.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
oneone.addEventListener(MouseEvent.MOUSE_UP, dropIt);
threethree.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
threethree.addEventListener(MouseEvent.MOUSE_UP, dropIt);
function pickUp(event:MouseEvent):void {
event.target.startDrag(true);
reply_txt.text = "";
event.target.parent.addChild(event.target);
startX = event.target.x;
startY = event.target.y;
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event.target.stopDrag();
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event.target.removeEventListener(MouseEvent.MOUSE_UP, dropIt);
event.target.buttonMode = false;
event.target.visible = false;
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event.target.y = myPlastic.y;
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event.target.y = startY;
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one.buttonMode = true;
two.buttonMode = true;
threethree.buttonMode = true;
oneone.buttonMode = true;
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yup finally i have done with my problems!!! thanks ^^

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Hi everyone,
I'm wanting to create an APEX application but I am a novice when it comes to APEX.
One of the key points to my app is that it will need to be able to have drag and drop capabilities. Not drag and drop data but drag and drop objects like in this blog post: http://rutgerderuiter.blogspot.com/2008/07/drag-planboard.html
That article is pretty much what I want to do. I was just wondering if this is easier in the most recent version as that blog is several years old.
Does anyone know if there are newer features that make this easier? Any relevant links?
Thanks!
-Joe

Hi jarola,
I was looking for a sample application that provides a fancy "drag and drop" and found your thread here.
I checked your link and the online version of the kanban board - veeeery great! Exactly what I'm looking for!! thumbs up :-)
Since I want to use it in an APEX application, I downloaded your sample application. Import was successful and I also took care of your "readme.txt":
"When installing application on Application Express release 4
After installation, you need modify page template.
Move #HEAD# substitution string in page template header before javascript libraries."
But despite, I still get following error message when trying to create a new board:
TypeError: $.htmldbJSON is not a function
I tried to place the #HEAD# in different places, nothing seems to help. :-(
I'm running APEX Version 4.2.0.00.27 .
It would be glad if somebody can help me to find what I'm doing wrong here...
Thanks & regards
FireFighter

Drag and drop "objects" in labview runtime

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