CODEWITHSUNDEEP
javajavafxtableviewobservablelist
novafluff
novafluff

Reputation: 911

Only removes from Tableview not observableList

Okay i got this javafx app were i got exercises and i can filter them through muscle groups but when its unfiltered my program removes both the object from obseravable list and from tableView but when its filtered it only removes from tableview but the object remains. So next time i filter its back agian.

Here are my observableLists

ObservableList<Exercise> filteredExercises = FXCollections.observableArrayList();
 ObservableList<Exercise> exercises = FXCollections.observableArrayList();

Here is the filter method

  @FXML
private void filterByChest(ActionEvent event) {
    filteredExercises.clear();
    for (Exercise xercise : exercises) {
        System.out.println(xercise);

        if(xercise.getFocusGroup().toLowerCase().contains("chest")){
            filteredExercises.add(new Exercise(xercise.getName(), xercise.getFocusGroup(), xercise.getTool(), xercise.getPb()));
        }
    }
       exTable.setItems(filteredExercises);
}

Here is the remove method

 @FXML
private void deleteExercise(ActionEvent event) {
Exercise selectedItem = exTable.getSelectionModel().getSelectedItem();
for (Exercise e : exercises){
    if(selectedItem == e){
       exercises.remove(e);
    }
}
exTable.getItems().remove(selectedItem);
    System.out.println(exercises);
}

Anyone got a solution to why it wont remove the object

Upvotes: 0

Views: 108

Answers (1)

James_D
James_D

Reputation: 209553

You should use a FilteredList for this functionality:

// create the lists:
ObservableList<Exercise> exercises = FXCollections.observableArrayList();

// initialize the filtered list with a filter that is always true 
// (i.e. no filtering)
ObservableList<Exercise> filteredExercises = exercises.filtered(exercise -> true);

// use the filtered list as the items list for the table:
public void initialize() {
    // ...

    exTable.setItems(filteredExercises);

    // ...
}

// filter by setting the predicate on the filtered list:
@FXML
private void filterByChest(ActionEvent event) {
    filteredExercises.setPredicate(
        exercise -> exercise.getFocusGroup().toLowerCase().contains("chest"));
}

// manipulate the list by adding/removing elements to/from the underlying list:
@FXML
private void deleteExercise(ActionEvent event) {
    Exercise selectedItem = exTable.getSelectionModel().getSelectedItem();
    exercises.remove(selectedItem);
}

Upvotes: 2

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