myCombo.setItemCaptionPropertyId("MYFIELD");
myCombo.setFilteringMode(FilteringMode.CONTAINS);
myCombo.setImmediate(true);
myCombo.setWidth("100.0%");
myCombo.setHeight("-1px");
myCombo.addValueChangeListener(new Property.ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
if (myCombo.getValue() != null) {
Item item = myCombo.getItem(event.getProperty()
.getValue());