public EnumComboBoxDataControl(IEnum enumeration){
this.enumeration = enumeration;
this.listBox.setVisibleItemCount(1);
IEnumItem nullItem = this.enumeration.getNullItem();
if (nullItem != null)
this.listBox.addItem(nullItem.getCaption(), nullItem.getDBValue().getValue());
IEnumItem[] items = this.enumeration.getItems();
for(int i = 0; i < items.length; i++)
this.listBox.addItem(items[i].getCaption(), items[i].getDBValue().getValue());
this.panel.add(this.rsc);