FXML - Acess Enums or constants

Similar Questions

• How can I update all the constants using a typedef automatically?

  I'm about to build a statemachine and State enum is a control of the typedef.

  Many constants are placed to the next 'State' using this typedef.

  Whenever I have modify the typedef enum, all constants become "pale" and I have to manually update, each according to the typedef even if the automatic update option is selected.

  What I am doing wrong?

  

  Close the type definition file (ctl) should trigger the auto-update feature.

  Felix

• Find and replace

  Hi all

  One of my colleague working on a program with more than 100 cases of the same enum (without type def as a constant knot, of control and property).  It must update the enum (surprise), so he needs to make the change on all the enum 100 +.  I showed him how to do a type-def, and he could replace the 100 + with new enum type FED.  It's a lot of work manually, so I tried to use search and replace, but it won't let me choose the new enum type-def we want to replace the enum 100 + with.  If I do find and replace, I can exclude the property node?  If I, the field node would get linke for the new enum?

  What is the best way to accomplish this task?

  jyang72211 wrote:

  1. I was able to find all the constant enum and replace them with something else.  Is it true that I can replace only with similar data type?  For example, I can't replace a constant enum with an add function.  I tried to change the enum to the ring to digital and numeric Enum.  They worked, but sometimes there is a glitch, where I have to find me and replace twice to make it work.  Have you seen this before?

  Yes, there are replacements that don't work because they are not simply doesn't make sense.

  2. I was able to easily find the enum constant, but for controls of the enum, I needed to go under others-> terminal façade.  I found the controls, but there is a slash sign beside him.  I assumed that meant cannot be operated.  I tried to replace the enum with some other control, and I can't.  How do you do search and replace on a control of enum (not constant).

  The search and replace has some limitations, and you met a. You can do what you want to do by the script. See attached example, which replaces the controls that have a label that starts with 'cc' with the typedef. The criteria for which controls replace yours. I just chose that according the example VI that you have provided. Modify if needed.

• LockMode.valueOf () gives exception

  Hello
  
  Try to get the enum LockMode constant to the string representation raises an exception:
  

  LockMode lockMode = LockMode.valueOf(LockMode.DEFAULT.toString());

  results in

  No enum const class com.sleepycat.je.LockMode.LockMode.DEFAULT

  The source is LockMode.toString () is overridden and for some reason it adds "LockMode." to the name().
  Is this expected behavior, and I have to use LockMode.name () instead of LockMode.toString ()?

  The javadoc for Enum.toString says:

  >
  Returns the name of the enumeration constant, as contained in the declaration. This method can be overridden if it is generally not necessary or desirable. An enum type should override this method when there is a form more "programmer-friendly" chain. >

  So if you want the name, you should always call name(). The format for toString() is not guaranteed.

  That said, I don't know why we are the substitution of toString or that we should.

  -mark

• Enum constant change in value when executing LV 2011

  Hi all

  I have a program with a simple state machine that runs a typedef enum constant.  When I run the VI, the actual value passed out of the CONSTANT seems to go back to '0' at random.  Please see the attached two screenshots.

  The only thing that lights no doubt the bug, the enum wire is connected to a switch (I like do to detect and handle errors).  Nothing permanently off the bug

  This is almost identical to that discussed in this thread here, claiming the bug was fixed in BT 8.0.1.  I use 32 bit LV 11.0 on windows 7.  No idea how to kill this bug?

  Whenever I see such things, my first instinct is to drop a node 'Always copy' following the constant.

• 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

  
  

• Adding items to an enum shifts the constant on the BD...

  A picture is worth a 1000 words, here is my qualm:

  

  Why adds an element to a constant of the enum addressing the constant of the comic?

  I use a lot this approach for Pseudo-stacked sequences (I use instead a state machine) and I end up spending the enum constant after adding item wach, otherwise, it ends by disappears under what structure it is right...

  Of course, I could just right-click and use the Edit items property (which I've been using today doing my level of tolerance has ebbed down a lot lately), but unless this feature has been voluntarily integrated in LV, it is bordering the sadist.

  Tested in LV 2011.

  Hi guys,.

  Thank you for this comment! I was also able to reproduce here on my computer running LabVIEW 2011 SP1.

  This was reported to R & D (CAR # 339320) for further investigations. Please let us know if you find other problems, we like always your diligence and your comments!

• How can I convert the name of the element of the enum constant to the text?

  For a control of the enum or indicator, I can use the 'String []' property with array of Index for the text of the element.

  But for an enum constant, I do not know how, but I've seen a solution a few years ago, but I can't remember it.

  Hoping that there wasn't a business developer who's somehow enough to help me.

  Format string is your friend. You even don't need to set the format string input in this case.

  

• Is it OK to have no constant fields in an enum type?

  Hello!
  
  I was wondering if it is good or bad to have no constant fields in the enum types (which would be modified during execution of the program)
  My question is if it goes against the semantics and idioms.
  
  Here is an example of what I want to do:

  public enum ChessPieceColor {
  
      BLACK,
      WHITE;
  
      // Reference to the player who plays the given color
      private Player player;
  
      public void setPlayer(Player player) {
  
          this.player = player;
  
      }
  
      public Player getPlayer() {
  
          return player;
  
      }
  
  }

  It would be a game of chess, where the chess pieces would be a color based on the enum. And if I want to know which player plays a certain color, I can do: ChessPieceColor.BLACK.getPlayer)
  
  It is an important work at home so I would have someone's opinion whether or not it is an acceptable design.
  
  I hope someone can help
  Thank you very much!

  Personally, I don't think it's a good idea.

  Your statement implies somewhat that a player is member of BLACK and BLACK is a member of ChessPeiceColor, that sounds wrong.
  ChessPieceColor.BLACK.getPlayer)

  Also, in the light of the foregoing, when I see a term all in capitals as the BLACK, I think of it, which represents a constant by convention and therefore has functions.

  What about using:
  A player = ChessBoard.getPlayer (ChessPieceColor.BLACK);
  That said, only a chess board has a player who plays the BLACK position.
  (Note: when the player is instansiated, it must store as a variable what position his reading: black or white)

• With the help of constant static as the FXML id

  Is it possible to use a constant static like the id in FXML and if so, how?
  
  For example if I have a Person class with a constant static set, such as:
  
  public static final String NAME = "name" field
  
  And then in a FXML file:
  
  <? import person? >
  < TextField id = Person.NAMEFIELD / >
  
  The code above FXML generates an error saying that "what exspected.
  I also tried with "$Person.NAMEFIELD", but this does not work either.
  
  Any suggestions?

  Is it possible to use a constant static like the id in FXML and if so, how?

  Yes, this is supported in JavaFX 2.2:

  The code above FXML generates an error saying that "what exspected.

  The quotes are required. FXML must be syntactically valid XML.

• How to define constants predefined through FXML

  Anymode know how to define a constant pre-defined FXML as javafx.scene.control.Control.USE_PREF_SIZE when you create a node?
  
  Instead of using a fixed value as it

     <Label text="Last Name:" minWidth="100" />

  I would use one of the predefined sentinel values like this.

     <Label text="Last Name:" minWidth="USE_PREF_SIZE" />

  The example above doesn't seem to work, and I feel that it is currently not possible at all.

  Ah, it's true. The JS engine recognizes names beginning with com, org, java and javax default package, but not JavaFX. Try this:

  var USE_PREF_SIZE = Packages.javafx.scene.control.Control.USE_PREF_SIZE;

  G

• Enums with the implementation of the specific method constant

  Just faced the following problem. I have the persistence of a class with one of the fields of it's enum with the implementation of the constant specific method:

  @Persistent
  public class Message
  {
     static public enum Type
     {
         DEFAULT
         { 
             @Override
             public String getDescription() { return "Some description"; }
         };
         public abstract String getDescription();
     }
     ...
     private Type type;
     ...
  }

  When I try to save the file, I get the exception:

  java.lang.IllegalArgumentException: Class could not be loaded or is not persistent: messages.Message$Type$1

  The problem seems to be in this compiler creates a separate class, namely Message$ Type$ 1.class for the DEFAULT instance and this class knows no BDB...
  
  If I delete the specific constant method of the enum, everything works fine (as the... $1.class is not created by the compiler)... Except for the fact that I would have the constant-specific methods he...
  Any ideas on that? Maybe it's a bad idea to create the specific constant methods if it means that each constant would own class file (and they would inflate storage routines)?

  Hi Mikhail,

  I've recreated the problem here and you're right, the constant-specific methods do not work. This isn't something that we thought, to be honest or tested.

  Just, based on a first glance I see that for the class of the generated compiler, the Class.isEnum method returns false, which is why we do not recognize this as an enum and finally throw us the exception you see. But assuming that we can identify the class as an enum (which shouldn't be too hard) I don't know what other problems will meet us in trying to support this.

  For now I think the best thing is to avoid using the constant-specific methods. I opened a ticket (#18357) so that we will be sure to look into this more closely and see if it can be taken care of in the future.

  If we are able to support, so I hope that we do not have to store additional metadata for the constants that have methods. In other words, I hope that we will not have to add any additional storage space or processing overhead.

  -mark

• Line break in the name of the Enum element? (no further questions on the property node)

  I don't know what is the meaning to allow element enum with line feeds them names (\n):

  

  It is easy to do by directly editing the control over the public Service or a constant on the comic, but it's somehow not if you use the context menu 'modify Items... "who jumps to the top of the Properties window.

  As a subsidiary question, if I try to do it programmatically:

  

  It fails with this error:

  which simply means

  That's the script as an indication only (never used script before)? If I disable the "Show script methods, etc." option, it is still available though...

  This type of property node is useful if you use LabVIEW to write LabVIEW.  The main example of this is the DAQ Assistant, but things like the right frame click JKI also do.  You usually encounter when writing automation tools development.  For example, this particular node would be useful in a tool that converts a task manager based on a string to an enum-based task manager.

  You can find the full properties of each property and method using LabVIEW.  This includes whether or not it will work in the execution or change environments.  The enum is an interesting case that confuses many.  Modification of strings of the enum of the code changes.  Most people who want to change the strings of the enum runtime should use a ring or a listbox, instead, since you can change their strings at run time.

• Locking enum value

  Hey all,.

  I want to lock an enumeration with a specific value, and essentially make a constant. Basically I want the enum to keep a value I select when registering whenopening and closing of VI. Maybe that I want just the code for too long, but is there a simple way to define a default value for the enumeration, which is not the first or last value in the list?

  Thanks a bunch!

  You can make any value by default, but it requires an operation of "Save" to store the new settings. Simply right-click the enum and "operation data... make current value by default".

  It should not be operated at run time, making this option disabled.

  If you need only on the diagram, change it to a constant of diagram instead.

  Sometimes it is easier to store values in a configuration file, in this way, the value can be set externally to the VI.

• How relabel case designated enum in the state machine

  Hello

  I have a state machine application in which typedef enum is used to refer to the names of the case.  Is there a faster way to rename one or more cases to match the typedef enum edited instead of having to rebuild each of them (the case structure loses all enum names if I try to edit in any way)?

  Thank you in advance,

  Oliver Barrett

  www.LinkedIn.com

  One thing to add, once your custom/constant in your block diagram control, if you decide to add a new case after case is added, you can simply go file > apply changes in the control to customize window and they will all up-to-date in your block diagram.