XdevListSelect

The XdevListSelect is a drop-down list from which the user can select a value. Multiple selections are possible. The drop-down list usually contains the values contained within a column of a database table.

The XdevListSelect is a form component and can be persisted via the XdevFieldGroup.

Important properties:

ReadOnly

Important events:

Data binding:

Data container (model)
- XdevBeanItemContainer - Standard data container. The allocation is set using the setContainerDataSource method.
  // Generates a new XdevBeanItemContainer 'productList' XdevBeanItemContainer<Product> productList = new XdevBeanItemContainer<Product>(Product.class); // Sets the XdevBeanItemContainer listSelect.setContainerDataSource(productList);
- XdevLazyEntityContainer - RapidClipse exclusively uses this when the property Entity > Auto query data is selected.

Examples:

Reset selection - Sets the selection to the initial state. This triggers a valueChange event.
listSelect.clear();
Set focus - Allocates the focus to the XdevListSelect. This can trigger a focus event.
listSelect.focus();

Add entries - Manually adds entries to the XdevListSelect.
listSelect.addItem("Eintrag 1"); listSelect.addItem("Eintrag 2");
Direct allocation of multiple entries.
listSelect.addItems("Eintrag 1", "Eintrag 2", "Eintrag 3", "Eintrag 4");
Selected object - Returns the selected object (entity) - Example: category entity.
BeanItem<Category> selectedItem = listSelect.getSelectedItem(); Category category = selectedItem.getBean();
or
Category Category = (Category)listSelect.getValue();
or - Delivers a list of all selected elements
List<BeanItem<Category>> selectedItems = listSelect.getSelectedItems();
Remove elements - Removes all the elements from the XdevListSelect.
listSelect.removeAllItems();
Select element - Automatic selection of an entry - Example: first entry.
Collection<?> itemIds = listSelect.getItemIds(); listSelect.setValue(((List<Category>)itemIds).get(0));

All XdevListSelect Methods