modify VI during execution

Similar Questions

• ImageViewer BackColor property during execution

  Hello

  I use IMAQ Vision Development mould 2010 with VS 2010.  I have observed that the backcolor property is not active when running, even if it can be modified at design time.

  Is this a bug? I also observed that the pallet type is not changed to r untime.

  

  Any help is appreciated.

  There is a property called fill Image box Style you need to set solid rather than default.  Then you should be able to change color during execution.  If you have a default value, it you cannot change color.  Sorry I forgot that you use Visual Studio.  Even if I'm using LabVIEW, you should be able to do the same thing in Visual Studio, just put these two properties.

  * Edit: Just a quick note, it is not necessary for me to use a property node explicitly linked here.

  I hope this helps!

  

• Resizing a JButton during execution

  Hello. I have problems with a JButton resizing during execution. I can set the size of a JButton in my JFrame constructor. However, when I try to change via an ActionListener has defined the JButton even nothing happens. I tried to call invalidate() on the JButton and the JPanel that contains nothing will do. Any help to fix this would be appreciated. Below the source code.
  

  import java.awt.*;
  import java.awt.event.*;
  import javax.swing.*;
  
  public class framebuild extends JFrame
  {
       JButton button1, button2;
       JLabel label;
       JPanel labelPanel = new JPanel();
       JPanel buttonPanel = new JPanel();
       
       public framebuild()
       {
            super("Error");
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            setPreferredSize(new Dimension(300,300));
            setLayout(new BorderLayout());
            setResizable(true);
            
            clickresponse responder = new clickresponse();
            
            label = new JLabel("Resize button?");
            button1 = new JButton("OK");
            button1.addActionListener(responder);
            button2 = new JButton("Cancel");
            button2.addActionListener(responder);
            
            
            labelPanel.add(label);
            
            buttonPanel.add(button1);
            buttonPanel.add(button2);
            
            add(labelPanel, BorderLayout.CENTER);
            add(buttonPanel, BorderLayout.SOUTH);
       }
       
       private class clickresponse implements ActionListener
       {
            public void actionPerformed(ActionEvent e)
            {
                 if( button1 == e.getSource() )
                 {
                      button1.setPreferredSize(new Dimension(100,100));
                      button1.invalidate();
                 }
                 else
                      System.exit(0);
            }
       }
       
       public static void main( String[] args )
       {
            framebuild frame = new framebuild();
            frame.pack();
            frame.setVisible(true);
       }
  
  }

  First of all, a few notes on your code.
  

• By convention, Java class names start with a capital letter and the first letter of each internal Word is capitalized. FrameBuild, no framebuild and ClickResponse, not clickresponse.
  
• It is usually seen on evil as a diversion from the legacy of needlessly extend a class. Your class could contain a JFrame rather than extend the JFrame.
  
• All Swing components should always be created and modified on the EDT and only on the EDT.

  When you make changes that affect the provision of an already visible from container, you must call, ( revalidate() and repaint()sometims) on the container.

  //button1.invalidate();
  buttonPanel.revalidate();
  

  DB

  Edit
  

• Avoid the 'standard' listeners who need to identify the source of the event to determine what steps to take. Soon, they develop little handy in any real application.

  Here is the summary of my recommendations, adapted from your code.

  import java.awt.*;
  import java.awt.event.*;
  import javax.swing.*;
  
  public class FrameBuild {
  
    JButton button1, button2;
    JLabel label;
    JPanel labelPanel = new JPanel();
    JPanel buttonPanel = new JPanel();
  
    public static void main(String[] args) {
      SwingUtilities.invokeLater(new Runnable() {
  
        @Override
        public void run() {
          new FrameBuild().makeUI();
        }
      });
    }
  
    public void makeUI() {
      label = new JLabel("Resize button?");
      labelPanel.add(label);
  
      button1 = new JButton("OK");
      button1.addActionListener(new ActionListener() {
  
        @Override
        public void actionPerformed(ActionEvent e) {
          button1.setPreferredSize(new Dimension(100, 100));
          buttonPanel.revalidate();
        }
      });
  
      button2 = new JButton("Cancel");
      button2.addActionListener(new ActionListener() {
  
        @Override
        public void actionPerformed(ActionEvent e) {
          System.exit(0);
        }
      });
  
      buttonPanel.add(button1);
      buttonPanel.add(button2);
  
      JFrame frame = new JFrame("Error");
      frame.add(labelPanel, BorderLayout.CENTER);
      frame.add(buttonPanel, BorderLayout.SOUTH);
  
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setSize(300, 300);
      frame.setLocationRelativeTo(null);
      frame.setVisible(true);
    }
  }
  

  Published by: Darryl Burke

• Can I change dynamically during execution Data Source?

  I need run the same reports on test environment and the production environment. How could I change source data during execution, according to the users want to run reports by querying the database test or production without amendment report definition?

  Hello

  what I would recommend in your case: set up your development/test systems as separate systems parallel to your production system. Clone your production environment for these development systems. Then a developer can login to the development system and run the reports (and modify it without touching the actual production system) and normal users work on the production system and only for validating them new developments, that they connect to the test system.

  It's a standard approach in software development and COMPUTER systems operations.

  How to watch your infrastructure, I have the impression that you have two databases and Server BI (prod and test)? Why not set up a test environment for the BI server, too?

  Best regards
  David.

• masking steps during execution

  I have a sous-suite that I point the user to when asked to isolate a card failure.  To give them some flexibility, I got a popup that gives them a certain number of options (see attachment).  I have an m.o. that indicates the individual steps these select/run (i.e. '1' or '3' in the png).  Control flow (denoted by '2') is the noise they don't really need to worry and may / will cause confusion (and possibly problems for me if they select them accidentally).  Is there a way to hide these measures flow during execution control so that the user sees '1' and '2' (and other similar 'valid' selections?

  If there wasn't a need explicit to have the flow control logic, then I'd be tempted to compact all in the post of the Popup Message action.

  

  By setting the Popup Message Action to go to the step, , use Custom Condition (TRUE):

  

  And by using the following Expression:

  Step.Result.ButtonHit == 1? RunState.Sequence.Main ["MR_RPack_R55"]. UniqueStepId:
  
  Step.Result.ButtonHit == 2? "" "RunState.Sequence.Main ["End_PCI_Isolation"]." UniqueStepId:
  
  Step.Result.ButtonHit is 3? RunState.Sequence.Main ["MR_R103"]. UniqueStepId:
  
  Step.Result.ButtonHit is 4? "" "RunState.Sequence.Main ["PCI_Intf_PT"]." UniqueStepId: «»

  It should be appropriate level following the Popup Message.

  (SequenceFile attached).

  I hope this helps.

  Charlie

• Why get error during execution the FPGA VI?

  Hello world

  I have a lot of sense of wrong during execution of a program that has been correctly executed previously. I don't know what I did wrong.

  Now, whenever I run this FPGA VI, I get an error (in the attachment). And, then runs the FPGA VI, but it does not give the data required those he supposed to give as output.

  Any help or recommendations would be appreciated also.

  Thank you.

  Hi auree123,

  There are a few reasons for this error
  may occur.  Could you tell us more about what's going on?

  You are
  I get this error when you compile and if so, at what stage?

  It looks like
  as you may be running it in Interactive Mode, which means that you are viewing
  the front of the FPGA VI on the development computer that you are running - is
  that correct?  If so, you could try to create a VI on your host
  Open a FPGA reference and communicate with the FPGA programmatically rather than interactively.

  Thank you

  Morgan S

  Technical sales engineer

• button conrol min and max range option during execution

  Is it possible to change the window button conrol min and max Beach setting during execution?

  Thank you very much Nick.

• Edit/delete/add scene coordinates in the table during execution

  Hello world

  I managed to build table allows you to store and record the coordinates of the stage and remind to control steps. However, I need change/remove/add details of scene during execution. I also need to allow the user to directly edit the coordinate from the scene of the array. Wondering what someone knows what is the best way to do it? Or is it better to use the matrix or Cluster? Thanks in advance.

  Best regards

  Han Yen

  Han Yen wrote:

  Thanks much altenbach for all the advice. I tried to do a table 2D control. I've been playing with table in the control. However, I still can't find out how can I detect that I change the data in the table 2D with the more recent issue during execution? How can I then update my current table with the latest data?

  Well, the 2D table is updated immediately and you do not all the other tables.

  Do you mean that you want to update XAbs, etc. where the just changed line is already selected?

  In any case, here's a simple project, perhaps it will give you some ideas. I would recommend using also the tables for XYZPos, entrances etc. and the XYZabs. This simplifies the code because you reduce the number of terminals and table operations.

  Let me know if something is not clear to you.

• Disable the extended FIFO FPGA target during execution

  Hello

  I use a FIFO extended target in my FPGA to constantly calculate the derivative of a measured value (dB/dt). Thus the FIFO stores all values during time dt. This means dt determines the number of items in the FIFO and dB is determined by the actual value less the oldest value in the FIFO. It works well when I initialize with the code in figure InitFIFO.

  But the FIFO of compensation is not possible (see figure clearFIFO). In the while loop if "reset dB" is false, as the new value of B is written on the FIFO, then the oldest value is read from, for the number of items in the FIFO remain constant. To change dt during execution, I need to clear the FIFO and initialize it with a new length (number of items). I tried the next loop, but it does not work. The FIFO does not initilized with the elements. The length is zero and the loop counter for (#deltaB Length2) is 0.

  What I am doing wrong? Is there a better way to erase a FIFO during execution in the FPGA? I'm now stuck for 2 days with this problem and looking forward to any idea or suggestion.

  Thank you very much. Best regards

  Andy

  Hej,

  Thank you for your response. You were correct, that deltab FIFO length was 0 because the defalt value was zero. The problem is that in my host vi on the RT system I put DeltaB FIFO length in a loop of high priority and as you can see when I restart the FPGA, DeltaB FIFO length has a valid value (the code in figure 1 works well with a local variable of DeltaB FIFO length in the FPGA). But the variable to set the variable "reset dB" is under the control of the loop of low priority of the host vi. And there, I had an entry DeltaB FIFO length unwired.

  So, I learned that a control FPGA read/write unwired sends a '0' or resets the variable to its default value in the FPGA. I assumed that nothing is transferred and the last variable is retained if you let a control read/write unwired. Now, I learned of this stupid error!

  Thanks a lot again!

  Andy

• IMAQ, zoom to fit display control disappeared during execution.

  As in the title. The menu is impossible to call during execution of the control display Imaq. This has happened after the compilation of the code.

  Any idea why this happened?

  Francesco.

  I had this problem before.

  The solution is not very pretty, but it can be found here: http://forums.ni.com/t5/LabVIEW/Missing-quot-Zoom-to-fit-quot-in-application-EXE-build/td-p/905681

  Birgit

• Enter the mathematical expression during execution

  Thanks to LabVIEW 7.0.  Is there a way to enter a mathematical expression during execution?  I am collection of bytes of a device in which the user may have to configure the runtime.  For example, if a package returns 2 bytes, i and j, the user wants to run an equation on the bytes as y = 200i - 3j.  The equation could be anything.  I looked at Expression nodes and formula, but it doesn't seem to be a way to get into the equation by program.  Anyone has any ideas on this subject?

  Thank you.

  I opened LV 7.1 which is the oldest I have.  In this version, the mathematics are in the palette to analyze it.

  In the functions palette click on search and type "parse" or "formula". These searches are formula several screw analysis

  If you have only the Base of LV version, you don't have these screws

  Lynn

• How can I draw several plots by using the XY graph during execution?

  Hello

  I want to draw several plots in the graph XY to the means of execution user will select the number of plots that he wants to draw, depending on this value, I have to get these values and use table generation and then I give to graph XY.

  During execution, but how to do this?

  Please help me in this regard.

  Kind regards

  Herald

  Why start a new thread?

• For a control that can be initilaized during execution

  In the case of an enumeration or a constatnt ring. The options to select should be listed when programming

  The option to select is possible during execution.

  I have a table, and I can send the 1st column of values in the menu drop-down, select one during execution.

  Help, please.

  Hi, Mike Grugh,.

  I don't know how to do it with a table drop-down list boxes, but if the number of lines in your file, then you can try the attached example.

  Kind regards

  Amine31

  (Give the congratulations to the right answers and Mark as a solution if your problem is resolved)

• How to change the frequency of sampling DAQmx during execution?

  Hello guys. I'm using LabVIEW in the measures of the frequency response function. My application requires the sampling rate to change according to the frequency of the signal during execution.

  I tried to do it with a "structure of the event" and it works well when I change the rate manually via the front control but it backs do not work when I set up the sampling frequency to vary automatically (just a frequency sweep). Photos below:

  Why not the structure of the event feels the change in the value of "rate"?

  Thanks in advance for your help.

  Lucas

  Hello

  In "automatic mode" to change the sampling rate, the calculated rate is written in the local variable (as illustrated in the code).  Structure of the event does not change value in the local variable as an event.

  In order to make the structure of the event to recognize the change in value of an indicator such as event: write the new value to the property "Value (Sgnl)" corrosponding node to rate indicator (see figure below).  This will make the structure of the event accept the value change in the indicator as event.

  Note: Use architectures such as producers and consumers for such applications, which makes the application readable and expandable.

  See rear queries if any.

  

• What would cause a constant changes during execution typedef enum

  Hello

  In my program I had a problem with a constant of enum for a selection of the tab value change during execution.  The enum is as part of the initialization of the program and when I step through the loop and then you see the property node of the climax to the value tab and in the next step of the enum changes its value.  I'm under LV 8.0

  Any information will be greatly appreciated.

  Gary