Lack of dynamic event (declaring)

Similar Questions

• Events unregistering on a cluster without Unregistering for all dynamic events

  Hello everyone

  I've been playing with dynamic event record but I hit a problem.

  Normally if I want to stop triggering events on a single control I will be wire constant ref with the correct type in the registry for block of events. This means that I don't have to use the unregister for events block and then rebuild the entire events list to registry when I only want to stop the events on a control.

  However, if I try to bring together a group of the refs (which cannot necessarily be of the same type) in a cluster then I can no longer cancel the events on this cluster registration from the register of events work a group of control constants.

  An alternative would be to use an array instead of a cluster, but this has two disadvantages: it does not create a case of dynamic event for each Member of the array and all controls must be the same type or they are co-erced to a more generic control class.

  I've attached an example VI (labVIEW 2011 SP1)

  I think I finally get the problem now.

  You need feed two references in separately.  You can cluster the registry OUT for events, I know, but I don't think that what you want will work.  You know that you can enter the tables in a table instead of a cluster, right?

  Shane.

  PS to be clearer.

  Register to activate your button separately from the rest.  Save all your "to be marketed" references - individually, not clustered - in a second 'register to events' and then together the two outputs (with the Save refnums event) before passing into the structure of the event.  You might have what you want.  So big cluster AFTER signing up, not before.

• registration of dynamic events - FP not in memory?

  Hello

  I have the problem that I do not understand the event registration Dynamics trhw.

  In my application, I have multiple threads that are initialized when the application starts and I switch between them using secondary.

  In one of this module, I want to register some dynamic event to find whitch controll cluster has been pressed.

  Why do I get error 1001?

  I have a static reference for all modules in the main thread. I start modules, but I don't open their FP.

  

  Well, your image is confusing because you cannot run without wiring this reference.  But if you did that then the error comes from the fact that your VI does not have a front that is open when you sign up for it.  So that the control reference isn't really exists.  I mean there are but you cannot reference a control that has not been opened.

  I think that what you want to do is open the front panel, and then set it to hidden.  Then after that the front panel has been open and hidden, to join the control event.

• It is back to LV2012 that the terminals of dynamic events are displayed by default?

  Between writing the title of this question and the drafting of this body, I realized my 'mistake' - which is between a function and a bug:

  If you drop a handler Structure in a given range from space empty diagram, the structure fell with the Terminal of dynamic events hidden.

  -but...

  If you drop a Structure of event handler in a range of context by right-clicking a user event Ref or event recording Refnum, the structure fell with this shown Terminal!

  Neat!

  To be more precise: the Structure of the event appears twice in the palettes.  One of the subpalette of Structures did not have terminal visible dynamic event, made one in the case of subpalette (which you can get by clicking right strategically).

• Static vs dynamic events - dynamic events are empty

  During the implementation of my project, I used static events to manage the interface. The Structures of the event separated while loops in the same vi.

  I changed the architecture to make code modular and I use dynamic events. Dynamic events are captured in separate subVIs event Structures. I spend the references to the controls in the subVIs that have Structures of the event and I record the events of the references.

  Static events had no problem.

  With the dynamic events, I see that some events are not consumed. Instead, I see the event inspector window a few times an event is 'empty '. This means that the button should be pressed again.

  I am attaching two examples of projects that have exactly the same functionality.

  The testDemo2 uses dynamic events.

  The testDemo4 uses static events.

  How much detail I miss the dynamic architecture events leading to lose some events?

  This UI code is crizazy. It is difficult to really say what is happening, but you have a Unregister for events VI after the structure of your event to during each single loop and then re-register at the beginning of each loop. Empty all dynamic events currently in the queue and then re-registered again.

  You must only register events, only once and cancel the registration at the end of the application.

  What you do isn't really very modular. Even if you add a new event/control, you still he wire through the Subvi references and register, so you're not really save any time. There is nothing wrong with having a static event for your UI record. What you want probably is an architecture of messages in queue manager, where your static user interface events create messages that are sent to a loop of consumer to manage.

• Add more dynamic events registration refnum

  Hello

  I have a wire that passes Event Registration refnum to my structure of the event. This thread is from VI, that I don't want to touch. He spent recording for the cluster of user events.

  I would add more dynamic events to the refnum (but not to the cluster), so I would like to re-record with the addition of new events.

  When I'm passing this refnum to block 'Register for events', LabVIEW does not allow me to expand this block and add new events, which I think is understandable.

  How can I add more dynamic events to the refnum?

  Close, but no cigar.  When you add user events, you want to be sure that every event has a unique name, then name your constants defining the events differently (as shown here).

  

  Bob Schor

• CompactRIO with dynamic event

  in my program, I have a struct event so when I amplant my VI in one NOR compactRIO his does not work and when I search for the resolution I found that I should use a dynamic event.

  my questions are:-in one compact RIO can I use dynamic event or not?

  -If so, how do dynamic events work? I need simple example

  Thank you

  I think in this document they meant "user events" not "dynamic events. If you look at the same page with the help of a newer version of LabVIEW, you will see that it is more clear now.

  Start by reading the user Network Interface (also the help of LabVIEW). Determine what type of data, you will need to send between the RT system and the user interface. Look at the examples for the mechanisms of communication in this document.

• With the help of registration of dynamic events for a Subvi

  Greetings to the forum LV,

  I'm having a problem with the inclusion of dynamic events in a Subvi and hope someone here can help you! Attached, is the culmination of many attempts to try to understand the inclusion of dynamic events. Basically what I'm trying to do with the screw joint is 1.) have a button that controls output PWM, 2). a speed selection menu that can enter 1 button said.) with an array of pwm values predefined; and finally, 3) to have some sort of event program which "connects" controls in 1). (and 2.) (IE, if I move the button to an exact value shown in the table, the speed selection must match this event). So far, I can say with certainty that the "speed selection" event card will not work because "New value" & "Old value" refer now to the refnum and not the selection of speed control (I intend to solve this problem after I solved this problem of the Subvi). However, the map of event engine speed PWM should work (when matches button among the values in the table, the selected speed will also report the "speed selection" control), which allowed me to reach my conclusion that the Subvi is not working.

  My reference to dynamic Subvi Event Registration: http://digital.ni.com/public.nsf/allkb/A882E27D1D7A949386256E0D0066B91A

  You need to make a different State for 'Timeout' in the Subvi and also avoid passing the value of timeout as -1.

  Find the file code.

• Repeater and dynamic events

  I use a Panel as my Repeater class. I have one by using a class that triggers dynamic events in this Panel. In the Panel, I have listeners at these events.

  I see that the class dispatches the event, but the Committee did not receive it. What can be wrong?

  It is a class code:

  var dynEvent:DynamicEvent = new DynamicEvent ("onConnect", true);

  dispatchEvent (dynEvent);

  and it comes to the Committee

  addEventListener ("onConnect", onConnect);

  private void onConnect(event:DynamicEvent):void

  {

  trace ("nothing is here");

  }

  Thank you

  Hi Zolotoj,

  Try to register the eventListener with the Socket class reference... in your comp in Repeater.

  So use socket. addEventListener ("onConnect", onConnect);

  If your other events are also shipped in the socket class register all eventListeners w.r.t. instance of the socket class as I did above...

  Repeater

  private var socket: modulecode. Socket is new modulecode. Socket();

  public function set data(sewingMachineData:XML):void

  {

  addEventListener ("our", our);

  addEventListener ("onSecurityError", onSecurityError);

  addEventListener ("onClose", onClose);

  addEventListener ("onError", onError);

  Socket. addEventListener ("onConnect", onConnect);

  socket.reConnectSocket ();

  }

  private void onConnect(event:DynamicEvent):void

  {

  He is not here

  Green.Visible = true;

  Red.Visible = false;

  }

  Thank you

  Jean Claude

• Dynamic event to manage 12 x 12 table or Cluster UI

  I try to treat up to a table of 12 x 12/cluster to allow different LED. The enable method will be two digital controls, JPY, which lights to LEDs in a specific order based on the input of control MxN. The specific order is right to left, bottom to top. Right now, I have only a handful of functional States, but I have to consider all States as indicated on my block diagram. I'm looking for some feedback on how to handle this dynamically. I am aware of save for events, but do not have the experience to understand if this is the path I must take. Thanks in advance to all those who respond!

  Examples

  2 x 2 3 x 3

  4. 3 9 | 8. 7

  2. 1 6 | 5. 4

  3. 2. 1

  

  

  While a single LED can be active at any time give right? Use a 2D Boolean LEDs, which is initialized to 12 x 12 table, then using replace table scheme, write a real led to index MxN. To do this in an event of value changed order of rows or columns. The code would be probably good on a postage stamp. Nodes value field or local variables.

  (Next time, please attach your VI rather oversized, truncated photos that show very little of the story.) (Thank you.)

• Question about the structure of dynamic event

  There is an indicator of "String" and two buttons Boolean ("GenerateMouseDown?" and "GenerateMouseUp?") on the front panel.  If the value of the "GenerateMouseDown?" or "GenerateMouseUp?" control is set to TRUE, the string "GenerateMouseDown" or "GenerateMouseUp" will be added to the indicator "String" once I click on the indicator, otherwise there is no string added to the indicator.

  I created the vi as in the attachment to this post.  However, if I select the button of "GenerateMouseUp?" or "GenerateMouseDown?" as the value FALSE, the matching string still will add to the indicator.

  Is that anybody could be using?  Thank you.

  Hi JCM,.

  It's because you have linked to these events directly to the string ' String: mouse upwards.

  When you want to use the events registered dynamically, you must select instead: "': mouse upward"... "

  You are in no way related to Neo6, who asked a very similar question just yesterday?

• registered dynamic events prevent playback of a video

  Hello

  I'm busy buildin separated a video player and want to control it via a main VI. The strange thing is: when I do where I have control on the video player, she plays the vacuum (H.264), but when I record events (dynamically) and read it via my main VI, the playbutton works, I see the progresbar on the WMP player, but the screen stays black?

  Best regards,

  Thijs

  The settings for media player before Panel objects are not the same.  One of them has the "windowless video" set to true, the other false.  I have no experience with this particular point, but I would first copy the actual control of the VI of work to the no work VI and see if it works all of a sudden.  You do a right click on it and select "Explorer properties" to see the palyers custom properties.

  Shane

• Assign dynamic statement declaring the block or block start

  Hi all
  
  For code below, if I attribute the select statement in the section declare for the corresponding variable, it will improve performance.
  
  For cust_veh_id we have another block cursor to declare, only partial code is provided.
  
  
  What I wanted to.
  

  declare
  v_addr_chg_stmt                 varchar2(2000) := 'select ''Y''
  FROM cust_addrs addrs
  WHERE customer_id = :v_customer_id
  AND updated_date >:p_end_date
  and rownum = 1';

  Actaul
  ---------
  

  declare
  p_end_date                      date;
  v_addr_chg_stmt                 varchar2(2000);
  v_mileage_stmt                 varchar2(2000);
  begin
  
  select updated_date into p_end_date
  from process_log_rfsh
  where tran_code ='CAP';
  
  v_addr_chg_stmt :=
  'select ''Y''
  FROM cust_addrs addrs
  WHERE customer_id = :v_customer_id
  AND updated_date >:p_end_date
  and rownum = 1'
  ;
  
  v_mileage_stmt :=
  'SELECT ''Y'' FROM cust_vehicles_audit
  WHERE cust_veh_id=:v_cust_veh_id
  AND field_name =''LAST_MILEAGE''
  AND added_date > :p_end_date
  and audit_date >= trunc(:p_end_date)
  and rownum=1'
  ;
         begin
                   execute immediate v_addr_chg_stmt
                      into v_addr_change_flag
                      using v_customer_id,  p_end_date;
               exception
            when no_data_found then
                   v_addr_change_flag:='N';
               end;
          begin
                 execute immediate v_mileage_stmt
                   into v_mileage_change_flag
                  using v_cust_veh_id,  p_end_date, p_end_date;
             exception
           when no_data_found then
                 v_mileage_change_flag:='N';
             end;
  end;

  Thank you
  Rambeau
  
  Published by: Raghu on January 18, 2013 13:13

  Rambeau wrote:
  This code is already running in production for a few years.

  Not a reason to justify using dynamic SQL.

  YOU NEED a JUSTIFICATION FOR the USE of DYNAMIC CODE. In any language.

  Once again: WHAT is your justification? If you can't provide that, so why you use code Dynamics?

  If you must use dynamic sql statements, performance definition wise to declare the block or start will be better.

  No difference - as no method doesn't change the actual SQL cursor run. Nor did the resulting cursor read faster data blocks.

  PL/SQL also does not care where the variable assignment happens. The difference is so small and so small, it is not relevant to the performance:

  SQL> declare
    2          t1      timestamp;
    3  begin
    4          --// test 1
    5          t1 := systimestamp;
    6          for i in 1..10000 loop
    7                  declare
    8                          num     number;
    9                  begin
   10                          num := 1;
   11                  end;
   12          end loop;
   13          dbms_output.put_line( 'Test 1. '||to_char(systimestamp-t1) );
   14
   15          --// test 2
   16          t1 := systimestamp;
   17          for i in 1..10000 loop
   18                  declare
   19                          num     number := 1;
   20                  begin
   21                          null;
   22                  end;
   23          end loop;
   24          dbms_output.put_line( 'Test 2. '||to_char(systimestamp-t1) );
   25
   26  end;
   27  /
  Test 1. +000000000 00:00:00.000040000
  Test 2. +000000000 00:00:00.000024000
  
  PL/SQL procedure successfully completed.
  
  SQL>
  

• How can I create dynamic events for a group/list?

  Hey,.
  ATM I'm programming request a bit where I add items to my center pane.
  
  Simpyfied I got:
  
  -Center pane: here are the items that appear on right click in the lower pane. This component must serve something like a playground where you can drag and drop and associate items in the bottom pane
  -Low component: here, I got approximately 180 items which are quite equal. It's smth like a menu of items that you can use. I realized the java classes extended from a parent with v.f. dispute class.
  
  What I want:
  I want to create an event handler for EACH of the items 'menu' dynamically. Just sth like:

      for (int i = 0; i < basic_menu_list.size(); i++)
      {
        final Element el = hbox_bottom.getChildren().get(i);
        hbox_bottom.getChildren().get(i).setOnMouseClicked(new EventHandler<MouseEvent>()
        {
  
          public void handle(MouseEvent event)
          {
            if (event.isSecondaryButtonDown())
            {
              playground.add(el);
              redrawPlayground();
            }
          }
  
        });
      }

  But as I expected, it does not work...
  
  Now my question:
  How can I solve this problem? Y at - it no option to listen to all the elements of a group without hard-coding every single listener?
  
  Thanks for your help,
  Martin

  Hello user,.

  Why you expected you it wouldn't work?
  You have an example with the 'transition' apply on a bunch of circles in the Getting Started with JavaFx (http://download.oracle.com/javafx/2.0/get_started/jfxpub-get_started.htm)

  Here is a class of the basic example...

  import javafx.application.Application;
  
  import javafx.event.EventHandler;
  
  import javafx.scene.Node;
  import javafx.scene.Scene;
  import javafx.scene.control.TextBox;
  import javafx.scene.input.MouseEvent;
  import javafx.scene.layout.Pane;
  import javafx.scene.layout.VBox;
  
  import javafx.stage.Stage;
  
  public class HelloWorld extends Application {
  
      //~ ----------------------------------------------------------------------------------------------------------------
      //~ Methods
      //~ ----------------------------------------------------------------------------------------------------------------
  
      public static void main(String[] args) {
          // Entry point
          Application.launch(args);
      }
  
      @Override
      public void start(Stage mainStage) throws Exception {
  
          Pane pane = new Pane();
          Scene scene = new Scene(pane, 200, 200);
  
          VBox vBox = new VBox();
          TextBox input1 = new TextBox();
          TextBox input2 = new TextBox();
          vBox.getChildren().addAll(input1, input2);
  
          for (Node input : vBox.getChildren()) {
              input.setOnMouseClicked(new EventHandler() {
                      public void handle(MouseEvent event) {
                          System.out.println("test click");
                      }
                  });
          }
  
          pane.getChildren().add(vBox);
          mainStage.setScene(scene);
          mainStage.setVisible(true);
      }
  }
  

  Niculaiu

• Dynamic event listener

  Hey all,.
  
  You have a problem with my code.
  
  var draftid:int = evt.result.mydrafts.draftid ;
  
  
  This option stores several project ID coming from http:request for example < drafid > 42 < / draftid >
  
  
  I then create children so that the data can be displayed dynamically. Problem is I want my displayObj be
  clickable - and when you click on it it should bringup clicked the draftid of the object. And because this is done so THAT I
  should be addEventListener for a click event. At the time when the click event is displayed the last draftid - not
  the current. I also tried to create a table to store the draftid however I do not know what to do with the information in the table to make each clickable displayObj and produce the correct draftid for the clicked object.
  
  Thanks in advance!

  Thanks for the quick reply Nate,

  I tried to do the class method as you described, but got totally confused by it--but you got through the investigation brought I discovered the data class that I could use. And it works beautifully (as much as a custom class would have done if I could understand).

  The solution is:

  displayObj.addChild (genreImg);
  displayObj.addChild (titleDrafts);
  displayObj.data = draftid;

  private void myFunction(event:MouseEvent):void {}

  var currentId:Number = event.target.data;
  Alert.Show(""+currentId);

  }

  This option stores the correct variable (draftid) for each clicked point.

  Nate's soon! Boon