package com.itmill.toolkit.demo.sampler.features.selects;
import java.util.Arrays;
import java.util.List;
import com.itmill.toolkit.data.Property;
import com.itmill.toolkit.data.Property.ValueChangeEvent;
import com.itmill.toolkit.ui.ListSelect;
import com.itmill.toolkit.ui.VerticalLayout;
public class ListSelectSingleExample extends VerticalLayout implements
Property.ValueChangeListener {
private static final List cities = Arrays.asList(new String[] { "Berlin",
"Brussels", "Helsinki", "Madrid", "Oslo", "Paris", "Stockholm" });
public ListSelectSingleExample() {
setSpacing(true);
// 'Shorthand' constructor - also supports data binding using Containers
ListSelect citySelect = new ListSelect("Please select a city", cities);
citySelect.setRows(7); // perfect length in out case
citySelect.setNullSelectionAllowed(false); // user can not 'unselect'
citySelect.select("Berlin"); // select this by default
citySelect.setImmediate(true); // send the change to the server at once
citySelect.addListener(this); // react when the user selects something
addComponent(citySelect);
}
/*
* Shows a notification when a selection is made. The listener will be
* called whenever the value of the component changes, i.e when the user
* makes a new selection.
*/
public void valueChange(ValueChangeEvent event) {
getWindow().showNotification("Selected city: " + event.getProperty());
}
}
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