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I need to set a default value for a ComboBox from an ObservableArrayList, I am trying to set the first value in my ArrayList as a default value.
List = FXCollections.observableArrayList(arrayList);
comboBox.setItems(List);
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java file, the only way to set the default value for a JComboBox is to change the sequence, since Java will always choose the first value in the list: JComboBox defViewtime = new JComboBox(new Object[] {"5 s", "1 s", "3 s", "8 s", "15 s", "25 s", "60 s" } );
The ComboBox class has a method known as editable (boolean), which specifies whether the current Combobox allows user input. You can set the value to this property using the setEditable() method. Therefore, to edit a JavaFX ComboBox invoke the setEditable() method on it by passing the boolean value true as a parameter.
You can use combobox. setValue(something) to set the initial value of a ComboBox.
ComboBox is a part of the JavaFX library. JavaFX ComboBox is an implementation of simple ComboBox which shows a list of items out of which user can select at most one item, it inherits the class ComboBoxBase. ComboBox (ObservableList i): creates a combo box with the given items This method returns the value of the property visibleRowCount.
When you call the setValue method on the ComboBox object, the selected item of the selectionModel property changes to this value even if the value is not in the combo box items list. If the items list then changes to include this value, the corresponding item becomes selected.
It is possible to listen for selection changes in a JavaFX ComboBox by setting an action listener on the ComboBox via its setOnAction () method. Here is an example of setting an action listener on a ComboBox which reads what value was selected in the ComboBox:
If you want by default to have selected item then put your code from Default into DefaultSelectedItem property of combobox 01-19-2018 07:55 AM If you want by default to have selected item then put your code from Default into DefaultSelectedItem property of combobox 01-19-2018 08:01 AM I some how did not see the DefaultSelectedItem property.
comboBox.getSelectionModel().selectFirst();
comboBox.getSelectionModel().select(index);
where index is the integer position of the item to select in the selection model, or a value from and of the same type as the arrayList.
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