The ChoiceBox class provides methods to add and remove event listeners for the following events, as well as events common to all list components:
| Events | Description |
|---|---|
| An event which is fired when a list dropdown is opened. | |
| An event which is fired when a list dropdown is closed. | |
| This event is triggered when the user clicks an item from a List-based component. |
For a list of additional events supported by the ChoiceBox, see this section which outlines shared events amongst list components.
For a list of additional events supported by the ChoiceBox, see this section which outlines shared events amongst list components.
To add an event listener, use one of the following patterns:
choiceBox.addOpenListener(e -> {
//Executed when the event fires
});
//OR
choiceBox.addOpenListener(new ComponentEventListener<ListOpenEvent>() {
@Override
public void onComponentEvent(ComponentEvent e){
//Executed when the event fires
}
});
//OR
choiceBox.addOpenListener(this::listOpenMethod);
The ComboBox class provides methods to add and remove event listeners for the following events, as well as events common to all list components:
| Events | Description |
|---|---|
| An event which is fired when a list dropdown is opened. | |
| An event which is fired when a list dropdown is closed. | |
| This event is triggered when the user clicks an item from a List-based component. | |
| An event that is fired when a component is edited or modified. | |
| A Keypress event is fired when a user presses a specific key on the keyboard while an element has focus. This event is commonly used to capture and respond to user keyboard interactions. When a Keypress event is triggered,the key that was pressed can be determine using the key code, and a specific action or actions can be performed based on the user's input. For example, it can be used to validate user input in form fields, implement keyboard shortcuts, or trigger certain actions based on specific key combinations. |
For a list of additional events supported by the ComboBox, see this section which outlines shared events amongst list components.
For a list of additional events supported by the ComboBox, see this section which outlines shared events amongst list components.
To add an event listener, use one of the following patterns:
comboBox.addKeypressEvent(e -> {
//Executed when the event fires
});
//OR
comboBox.addKeypressEvent(new ComponentEventListener<KeypressEvent>() {
@Override
public void onComponentEvent(ComponentEvent e){
//Executed when the event fires
}
});
//OR
comboBox.addKeypressEvent(this::keypressMethod);
The ListBox class provides methods to add and remove event listeners for the events common to all list components.
For a list of events supported by the ListBox, see this section which outlines shared events amongst list components.
For a list of events supported by the ListBox, see this section which outlines shared events amongst list components.
To add an event listener, use one of the following patterns:
listBox.addSelectListener(e -> {
//Executed when the event fires
});
//OR
listBox.addSelectListener(new ComponentEventListener<ListSelectEvent>() {
@Override
public void onComponentEvent(ComponentEvent e){
//Executed when the event fires
}
});
//OR
listBox.addSelectListener(this::propertyChangeMethod);