JavaFX 2 1 TableView refresh items

Question

I have this common issue  as it appears to be  My table view wont refresh my items after I reset them  I have checked the data and it s the new one    I tried multiple solution from internet but no success    Can t reset all the columns because it adds one empty one extra  dont know why  and the resize just breakes   My table is not editable  The new data is changed   The data is refreshed if I change the ordering of the items and the rows change        I m just left without ideas   At the moment the refresh code is pretty simple   ObservableList lt User gt  data   FXCollections observableArrayList User getResellers     reseller table setItems data     Again the new data is correct  When I make an selection to the tableView it returns the new correct Item

User · Accepted Answer

I had a similar problem with refreshing  My solution was to restrict the operations on the ObservableList to those which work correctly with bind     Assume ObservableList obsList is the underlying list for the TableView     Then obsList clear    inherited from java util List lt  gt   will not update the TableView correctly but   Also calling setItem obsList  did not work to trigger a refresh   but     obsList removeAll obsList   overwritten by ObservableList  works fine because it fires the changeEvent correctly   Refilling a list with completely new content then works as follows    obsList removeAll obsList   obsList add          e g  in a loop      or   obsList removeAll obsList   FXCollections copy obsList  someSourceList    Best regards Ingo

User · Answer

Take a look at this issue in Jira  https   bugs openjdk java net browse JDK-8098085  a comment 2012-09-20 08 50 gave a workaround that works     wierd JavaFX bug reseller table setItems null    reseller table layout      ObservableList lt User gt  data   FXCollections observableArrayList User getResellers     reseller table setItems data

User · Answer

What a BUG   Here is another workaround     public void forceRefresh       final TableColumn lt  Prospect     gt  firstColumn   view getColumns   get  0      firstColumn setVisible  false      new Timer   schedule  new TimerTask      Override public void run          Platform runLater  new Runnable      Override public void run             firstColumn setVisible  true                   100        I ve done a SSCCE to show the bug  I encourage everyone to fix it by another more elegant way because my workaround is very ugly

User · Answer

Following the answer of Daniel De Le  n        I introduced a dummy property  modelChangedProperty  in my model and  created a method refresh   in my model that changes the value of that property  In my controller I added a Listener to the dummy property that updates the table view     -         Adds a listener to the modelChangedProperty to update the table view     private void createUpdateWorkAroundListener          model modelChangedProperty addListener               ObservableValue lt   extends Boolean gt  arg0  final Boolean oldValue  final Boolean newValue  - gt  updateTableView                            Work around to update table view     private void updateTableView         TableColumn lt      gt  firstColumn   scenarioTable getColumns   get 0       firstColumn setVisible false       firstColumn setVisible true

User · Answer

There seem to be several separate issues around oldItems equals newItems   The first part of RT-22463  tableView won t update even if calling items clear       refresh table  table getItems   clear    table setItems listEqualToOld         that s fixed  Clearing out the old items before setting a new list clears out all old state  thus refreshing the table  Any example where this doesn t work might be a regression   What s still not working is re-setting items without clearing first     refresh table table setItems listEqualToOld      That s a problem if the table is showing properties that are not involved into an item s equal decision  see example in RT-22463 or Aubin s  and covered - hopefully - by RT-39094   UPDATE  RT-39094 the latter is fixed as well  for 8u40  Should bubble up into the ea in a couple of weeks  speculating on u12 or such    The technical reason seems to be an equality check in cell s implementation  checking for changes of the item before actually calling updateItem T  boolean  was introduced to fix performance problems  Reasonable  just to hard-code  change     old equals new  poses problems in some contexts    A work-around that s fine for me  no formal testing   is a custom TableRow which jumps in if identity check is required          Extended TableRow that updates its item if equal but not same     Needs custom skin to update cells on invalidation of the     item property  lt p gt         Looks ugly  as we have to let super doing its job and then    re-check the state  No way to hook anywhere else into super     because all is private   lt p gt         Super might support a configuration option to check against    identity vs  against equality  lt p gt         Note that this is  not  formally tested  Any execution paths calling     lt code gt updateItem int  lt  code gt  other than through      lt code gt indexedCell updateIndex int  lt  code gt  are not handled          author Jeanette Winzenburg  Berlin     public class IdentityCheckingTableRow lt T gt   extends TableRow lt T gt          Override     public void updateIndex int i            int oldIndex   getIndex            T oldItem   getItem            boolean wasEmpty   isEmpty            super updateIndex i           updateItemIfNeeded oldIndex  oldItem  wasEmpty                          Here we try to guess whether super updateIndex didn t update the item if        it is equal to the old                 Strictly speaking  an implementation detail                  param oldIndex cell s index before update         param oldItem cell s item before update         param wasEmpty cell s empty before update             protected void updateItemIfNeeded int oldIndex  T oldItem  boolean wasEmpty               weed out the obvious         if  oldIndex    getIndex    return          if  oldItem    null    getItem      null  return          if  wasEmpty    isEmpty    return             here both old and new    null  check whether the item had changed         if  oldItem    getItem    return             unchanged  check if it should have been changed         T listItem   getTableView   getItems   get getIndex                update if not same         if  oldItem    listItem                   doesn t help much because itemProperty doesn t fire                so we need the help of the skin  it must listen                to invalidation and force an update if                 its super wouldn t get a changeEvent             updateItem listItem  isEmpty                            Override     protected Skin lt   gt  createDefaultSkin             return new TableRowSkinX lt  gt  this               public static class TableRowSkinX lt T gt  extends TableRowSkin lt T gt             private WeakReference lt T gt  oldItemRef          private InvalidationListener itemInvalidationListener          private WeakInvalidationListener weakItemInvalidationListener                          param tableRow                     public TableRowSkinX TableRow lt T gt  tableRow                super tableRow               oldItemRef   new WeakReference lt  gt  tableRow getItem                 itemInvalidationListener   o - gt                    T newItem     ObservableValue lt T gt   o  getValue                    T oldItem   oldItemRef    null   oldItemRef get     null                  oldItemRef   new WeakReference lt  gt  newItem                   if  oldItem    null  amp  amp  newItem    null  amp  amp  oldItem equals newItem                         forceCellUpdate                                                 weakItemInvalidationListener   new WeakInvalidationListener itemInvalidationListener               tableRow itemProperty   addListener weakItemInvalidationListener                                     Try to force cell update for equal  but not same  items             C amp P ed code from TableRowSkinBase                      private void forceCellUpdate                 updateCells   true              getSkinnable   requestLayout                    update the index of all children cells  RT-29849                  Note that we do this after the TableRow item has been updated                 rather than when the TableRow index has changed  as this will be                before the row has updated its item   This will result in the                issue highlighted in RT-33602  where the table cell had the correct                item whilst the row had the old item              final int newIndex   getSkinnable   getIndex                for  int i   0  max   cells size    i  lt  max  i                      cells get i  updateIndex newIndex                                       SuppressWarnings  unused       private static final Logger LOG   Logger              getLogger IdentityCheckingListCell class getName             usage  table setRowFactory p - gt  new IdentityCheckingTableRow       Note that TableCell has a similar hard-coded equality check  so if the custom row doesn t suffice it might be necessary to use a custom TableCell with a similar workaround  haven t run into an example where that s needed  though

User · Answer

for refresh my table I do this   In my ControllerA who named RequisicionesController I do this   FXML public TableView lt Requisiciones gt   reqtable   public TableView lt Requisiciones gt  getReqtable         return reqtable     public void setReqtable TableView lt Requisiciones gt  reqtable        this reqtable   reqtable      in the FXML loader I get ControllerB who also named RevisionReqController   RevisionReqController updateReq   cargarevisionreq  lt RevisionReqController gt getController     RequisicionesController this setReqtable selecciondedatosreq                       updateReq setGetmodeltable RequisicionesController this getReqtable       in my ControllerB I do this   public TableView lt Requisiciones gt   getmodeltable        public TableView lt Requisiciones gt  getGetmodeltable         return getmodeltable     public void setGetmodeltable TableView lt Requisiciones gt  getmodeltable        this getmodeltable   getmodeltable      then   public void refresh          mybutton setonMouseClicked e - gt        ObservableList lt Requisiciones gt  datostabla   FXCollections observableArrayList        try              rest of code          String Query    select              PreparedStatement pss  Conexion prepareStatement Query           ResultSet rs   pss executeQuery            while rs next                  datostabla add new Requisiciones                     al requisiciones data                                   RevisionReqController this getGetmodeltable   getItems   clear            RevisionReqController this getGetmodeltable   setItems datostabla         catch Exception ee               my message here           so in my controllerA I just load the table with setCellValueFactory   that s its all

User · Answer

I had the same problem and after some search this is my workaround  I found that if the columns are removed and then re-added the table is updated   public static  lt T U gt  void refreshTableView final TableView lt T gt  tableView  final List lt TableColumn lt T U gt  gt  columns  final List lt T gt  rows         tableView getColumns   clear        tableView getColumns   addAll columns        ObservableList lt T gt  list   FXCollections observableArrayList rows       tableView setItems list        Example of usage   refreshTableView myTableView  Arrays asList col1  col2  col3   rows

User · Answer

Instead of refreshing manually you should use observeable properties  The answers of this question examples the purpose  SimpleStringProperty and SimpleIntegerProperty TableView JavaFX

User · Answer

The solution by user1236048 is correct  but the key point isn t called out   In your POJO classes used for the table s observable list  you not only have to set getter and setter methods  but a new one called Property   In Oracle s tableview tutorial  http   docs oracle com javafx 2 ui controls table-view htm   they left that key part off   Here s what the Person class should look like   public static class Person        private final SimpleStringProperty firstName      private final SimpleStringProperty lastName      private final SimpleStringProperty email       private Person String fName  String lName  String email            this firstName   new SimpleStringProperty fName           this lastName   new SimpleStringProperty lName           this email   new SimpleStringProperty email              public String getFirstName             return firstName get               public void setFirstName String fName            firstName set fName              public SimpleStringProperty firstNameProperty            return firstName             public String getLastName             return lastName get               public void setLastName String fName            lastName set fName              public SimpleStringProperty lastNameProperty            return lastName             public String getEmail             return email get               public void setEmail String fName            email set fName              public SimpleStringProperty emailProperty                return email

User · Answer

I have an use case where nothing else helped as the solution from Aubin  I adapted the method and changed it by removing and adding an item to the tables  item list as it works in the end only reliable with this hack  the column visible toggle did the job only the first time   I reported it also in the Jira task   https   javafx-jira kenai com browse RT-22463   public  lt T gt  void tableItemsRefresh final ObservableList lt T gt  items           if  items    null    items size      0           return         int idx   items size   -1        final T item   items get idx         items remove idx          new Timer   schedule new TimerTask               Override          public void run                 Platform runLater new Runnable                     Override                public void run                       items add item                                                        100

User · Answer

My solution is similar to the the workaround of Daniel De Le  n  but it also works when you need to hide the first column  index 0 in his example   Of course you could just change the index in his solution  but if you are rearranging the columns  my solution might work better for you  The idea is to hide and show the column by its name instead of hiding and showing it by its index    private void updateMyTableView            update table view WORKAROUND         if  myTableView    null            ObservableList lt TableColumn lt Entry    gt  gt  columns   myTableView getColumns            for  TableColumn lt Entry    gt  column   columns                   at this point  we look for the specific column  which should                always be visible                therefore we use the  Column Title  String  e g   First name              if  column getText   equals  Column Title                      column setVisible false                   column setVisible true                                     It s best to update your table in the UI update thread  However  it also works by just calling updateMyTableView    after you ve changed something in your table  since JavaFX seem to update in the UI thread anyway  not sure about that    Platform runLater new Runnable         public void run              updateMyTableView

User · Answer

initialize   method  fullNameColumn   new TableColumn  Full name    fullNameColumn setCellValueFactory new PropertyValueFactory lt User  String gt   fullName     usernameColumn   new TableColumn  Username    usernameColumn setCellValueFactory new PropertyValueFactory lt User  String gt   test     emailColumn   new TableColumn  Email    emailColumn setCellValueFactory new PropertyValueFactory lt User  String gt   email     reseller table setColumnResizePolicy TableView CONSTRAINED RESIZE POLICY   reseller table getColumns   addAll usernameColumn  fullNameColumn  emailColumn    ObservableList lt User gt  data   FXCollections observableArrayList User getResellers     reseller table setItems data     User Class  Hibernate POJO Class   private SimpleStringProperty test   public void setFullName String fullName      this fullName   fullName    this test   new SimpleStringProperty fullName          public SimpleStringProperty testProperty       return test      refresh   method  ObservableList lt User gt  data   FXCollections observableArrayList User getResellers     reseller table setItems data

User · Answer

JavaFX8  I m adding new Item by a DialogBox  Here is my code   ObservableList lt Area gt  area   FXCollections observableArrayList      At initialize   or setApp    this areaTable setItems getAreaData       getAreaData    private ObservableList lt Area gt  getAreaData         try           area   AreaDAO searchEmployees       To inform ObservableList         return area        catch  ClassNotFoundException   SQLException e            System out println  Error      e           return null            Add by dialog box    FXML private void handleNewArea         Area tempArea   new Area        boolean okClicked   showAreaDialog tempArea       if  okClicked            addNewArea tempArea           this area add tempArea      To inform ObservableList            Area is an ordinary JavaFX POJO  Hope this helps someone

User · Answer

Since JavaFX 8u60 you can use assuming tableView is an instance of TableView class    tableView refresh      From the documentation      Calling refresh   forces the TableView control to recreate and   repopulate the cells necessary to populate the visual bounds of the   control  In other words  this forces the TableView to update what it   is showing to the user  This is useful in cases where the underlying   data source has changed in a way that is not observed by the TableView   itself

User · Answer

I know that this question is 4 years old but I have the same problem  I tried the solutions from above and didn t worked  I also called refresh   method but still not my expected result  So I post here my solution maybe will help someone   Question db   center getSelectionModel   getSelectedItem    new QuestionCrud   deleteQ db getId     ObservableList lt Question gt  aftDelete   FXCollections observableArrayList           new QuestionCrud    all              center setItems aftDelete     Even that before of this I used another variable in ObeservableList for setting items into the tableview  I call this a  filthy method  but until I get a better solution is ok

User · Answer

I am not sure if this applies to your situation  but I will post what worked for me   I change my table view based on queries   searches to a database   For example  a database table contains Patient data   My initial table view in my program contains all Patients   I can then search query for Patients by firstName and lastName   I use the results of this query to repopulate my Observable list   Then I reset the items in the tableview by calling tableview setItems observableList           Searches the table for an existing Patient       FXML public void handleSearch         String fname   this fNameSearch getText        String lname   this lNameSearch getText        LocalDate bdate   this bDateSearch getValue         if  this nameAndDOBSearch fname  lname  bdate             this patientData   this controller processNursePatientSearch fname  lname  bdate         else if  this birthDateSearch fname  lname  bdate             this patientData   this controller processNursePatientSearch bdate         else if  this nameSearch fname  lname  bdate             this patientData   this controller processNursePatientSearch fname  lname              this patientTable setItems this patientData       The if blocks update the ObservableList with the query results

User · Answer

I suppose this thread has a very good description of the problem with table refresh

User · Answer

UPDATE  Finally tableview refreshing is resolved in JavaFX 8u60  which is available for early access     About refreshing see the Updating rows in Tableview  And about the blank column see the JavaFx 2 create TableView with single column  Basically it is not a column  i e  you cannot select the item clicking on this blank column items  It is just a blank area styled like a row     UPDATE  If you are updating the tableView via reseller table setItems data  then you don t need to use SimpleStringProperty  It would be useful if you were updating one row item only  Here is a working full example of refreshing the table data    import java util ArrayList  import java util List  import javafx application Application  import javafx collections FXCollections  import javafx event ActionEvent  import javafx event EventHandler  import javafx scene Group  import javafx scene Scene  import javafx scene control Button  import javafx scene control TableColumn  import javafx scene control TableView  import javafx scene control cell PropertyValueFactory  import javafx scene layout VBox  import javafx stage Stage   public class Dddeb extends Application        public static class Product           private String name          private String code           public Product String name  String code                this name   name              this code   code                     public String getCode                 return code                     public void setCode String code                this code   code                     public String getName                 return name                     public void setName String name                this name   name                       private TableView lt Product gt  productTable   new TableView lt Product gt           Override     public void start Stage stage             Button refreshBtn   new Button  Refresh table            refreshBtn setOnAction new EventHandler lt ActionEvent gt                   Override             public void handle ActionEvent arg0                       You can get the new data from DB                 List lt Product gt  newProducts   new ArrayList lt Product gt                     newProducts add new Product  new product A    1201                     newProducts add new Product  new product B    1202                     newProducts add new Product  new product C    1203                     newProducts add new Product  new product D    1244                      productTable getItems   clear                    productTable getItems   addAll newProducts                     productTable setItems FXCollections observableArrayList newProducts                                       TableColumn nameCol   new TableColumn  Name            nameCol setMinWidth 100           nameCol setCellValueFactory new PropertyValueFactory lt Product  String gt   name              TableColumn codeCol   new TableColumn  Code            codeCol setCellValueFactory new PropertyValueFactory lt Product  String gt   code              productTable getColumns   addAll nameCol  codeCol           productTable setColumnResizePolicy TableView CONSTRAINED RESIZE POLICY               You can get the data from DB         List lt Product gt  products   new ArrayList lt Product gt             products add new Product  product A    0001             products add new Product  product B    0002             products add new Product  product C    0003                productTable getItems   addAll products           productTable setItems FXCollections observableArrayList products             final VBox vbox   new VBox            vbox setSpacing 5           vbox getChildren   addAll productTable  refreshBtn            Scene scene   new Scene new Group               Group  scene getRoot    getChildren   addAll vbox           stage setScene scene           stage setWidth 300           stage setHeight 500           stage show               public static void main String   args            launch args             Note that  productTable setItems FXCollections observableArrayList newProducts      and   productTable getItems   clear    productTable getItems   addAll newProducts     are almost equivalent  So I used the one to fill the table for the first time and other when the table is refreshed  It is for demo purposes only  I have tested the code in JavaFX 2 1  And finally  you can  and should  edit your question to improve it by moving the code pieces in your answer to your question

User · Answer

I finally found an ugly workaround to refresh all rows   void refreshTable         final List lt Item gt  items   tableView getItems        if  items    null    items size      0  return       final Item item   tableView getItems   get 0       items remove 0       Platform runLater new Runnable             Override         public void run                 items add 0  item

User · Answer

I have been trying to find a way to refresh the tableView ScalaFx  for 3-4 hours  Finally I got a answer  I just  want to publish my solution because of i wasted already hours    -To retrieve the rows from database  i used to declare a method which returns ObservableBuffer   My JDBC CLASS        To get all customer details def getCustomerDetails   ObservableBuffer Customer       val customerDetails   new ObservableBuffer Customer      try        val resultSet   statement executeQuery  SELECT   FROM MusteriBilgileri        while  resultSet next             val musteriId   resultSet getString  MusteriId         val musteriIsmi   resultSet getString  MusteriIsmi         val urununTakildigiTarih   resultSet getDate  UrununTakildigiTarih   toString       val bakimTarihi   resultSet getDate  BakimTarihi   toString       val urununIsmi   resultSet getString  UrununIsmi         val telNo   resultSet getString  TelNo         val aciklama   resultSet getString  Aciklama          customerDetails    new Customer musteriId musteriIsmi urununTakildigiTarih bakimTarihi urununIsmi telNo aciklama             catch       case e   gt  e printStackTrace        customerDetails     -And I have created a TableView object    var table   new TableView Customer  model getCustomerDetails  table columns     customerIdColumn customerNameColumn productInstallColumn serviceDateColumn          productNameColumn phoneNoColumn detailColumn    -And Finally i got solution  In the refresh button  i have inserted this code    table setItems FXCollections observableArrayList model getCustomerDetails delegate     model is the reference of my jdbc connection class  val model   new ScalaJdbcConnectSelect   This is the scalafx codes but it  gives some idea to javafx

User · Answer

TableColumn visable       databinding       JavaFX bug              Java8          trace JavaFX  source code       bug   Listener                JFace  PropertyChangeSupport    POJO             DoubleProperty   WritableObjectValue                                                                               I had firmed use change Column Visable Property is not conform data binding automation purpose   After I traced JavaFX TableView source code  I never discovered any problem code for Tableview binding issue  After 4 weeks ago  I changed POJO field s type from DoubleProperty to WritableObjectValue  problem was solved                                                  resolve in Taiwan Taipei    Sample code   public class CostAnalytics  protected WritableObjectValue lt Double gt  subtotal new SimpleObjectProperty lt Double gt        WritableObjectValue                Column  setVisable false  setVisable true        public void setQuantity double quantity        this pcs firePropertyChange  quantity   this quantity  quantity       this quantity set quantity       this calsSubtotal      public WritableObjectValue lt Double gt  getSubtotal        WritableObjectValue                Column  setVisable false  setVisable true      return subtotal               TableColumn lt CostAnalytics  Double gt  subtotal   new TableColumn lt CostAnalytics  Double gt                      subtotal setCellValueFactory new Callback lt CellDataFeatures lt CostAnalytics  Double gt   ObservableValue lt Double gt  gt               public ObservableValue lt Double gt  call                  CellDataFeatures lt CostAnalytics  Double gt  p                WritableObjectValue lt Double gt  result   p getValue   getSubtotal          WritableObjectValue                Column  setVisable false  setVisable true                 return  ObservableValue lt Double gt                  result     WritableObjectValue                Column  setVisable false  setVisable true                 return new                ReadOnlyObjectWrapper lt Double gt  p getValue   getSubtotal                           return  ObservableValue lt Double gt   p getValue   getSubtotal        WritableObjectValue                Column  setVisable false  setVisable true

User · Answer

Based on Daniel De Le  n s answer   public static void refresh table TableView table        for  int i   0  i  lt  table getColumns   size    i                TableColumn  table getColumns   get i    setVisible false             TableColumn  table getColumns   get i    setVisible true

User · Answer

You just need to clear the table and call the function that generates the filling of the table    ButtonRefresh setOnAction  event  - gt                tacheTable getItems   clear                PopulateTable

User · Answer

Workaround    tableView getColumns   get 0  setVisible false    tableView getColumns   get 0  setVisible true

User · Answer

Well after looking for all the possible solutions  Tried clearing data first and then added in tableview tableView getItems   clear    still that does not resolved my problem  I tried all the answers given here but did not worked for me and I still had stale objects in my table as shown in image below     In order to fix it I created a DUMMY label and used setGraphic as follows

User · Answer

Same problem here  i tried some solutions and the best for me is following   In initialize-method of controller  create an empty observableList and set it to the table   obsBericht   FXCollections observableList new ArrayList lt Bericht gt  0    tblBericht setItems obsBericht     In your update-method  just use the observableList  clear it and add the refreshed data   obsBericht clear    obsBericht addAll FXCollections observableList DatabaseHelper getBerichte         tblBericht setItems obsBericht     It s not necessary to set the items of the table again

[java] JavaFX 2.1 TableView refresh items

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