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7guest172.69.34.1116q16m9Jul 14, 2023 8:06:44 AMlinkresources
index.zulzul<zk>
<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit" ?>
<window id="mainWindow" border="normal" title="hello" apply="pkg$.TestComposer">
<label value="@{mainWindow$composer.typesModel.selection.size,load-when='myListbox.onSelect,myListbox.onCheckSelectAll'}"/>
<listbox model="@{mainWindow$composer.typesModel}"
checkmark="true" multiple="true"
rows="10" width="400px" id="myListbox">
<custom-attributes org.zkoss.zul.listbox.rod="false"/>
<listhead>
<listheader label="TYPE"/>
</listhead>
<listitem self="@{each=type}" label="@{type.name}"/>
</listbox>
</window>
</zk>
TestComposer.javajavaimport org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
import java.util.*;
public class TestComposer extends GenericForwardComposer{
private List<Type> types;
private ListModelList<Type> typesModel;
private Set<Type> selectedTypes = new HashSet<Type>();
public void doAfterCompose(Component comp) throws Exception {
super.doAfterCompose(comp);
this.typesModel = new ListModelList(getTypes(),true);
this.typesModel.setMultiple(true);
}
public List<Type> getTypes() {
if(null == this.types) {
this.types = new ArrayList<Type>();
for(int i = 0; i < 200; i++) {
this.types.add(new Type("Type"+i));
}
}
return this.types;
}
public Set<Type> getSelectedTypes() {
return this.selectedTypes;
}
public void setSelectedTypes(Set<Type> selectedTypes){
this.selectedTypes = selectedTypes;
}
public ListModelList<Type> getTypesModel() {
return this.typesModel;
}
}
Type.javajava
public class Type {
private String name;
public Type(String name) {
this.name = name;
}
public String getName() {
return this.name;
}
}
SelectedItemCollectionConverter.javajavaimport org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
import java.util.HashSet;
import java.util.Set;
import org.zkoss.zkplus.databind.*;
public class SelectedItemCollectionConverter implements TypeConverter {
public Object coerceToUi(Object val, Component comp) {
final Listbox listbox = (Listbox) comp;
// As a result, the data binder expects a set of list items
final Set<Listitem> itemSet = new HashSet<Listitem>();
if (val instanceof Iterable<?>) {
for (Object object : (Iterable) val) {
final ListModel listboxModel = listbox.getModel();
if (listboxModel instanceof BindingListModel) {
// Elements in the model and listbox items are linked through their index.
final BindingListModel model = (BindingListModel) listboxModel;
final int index = model.indexOf(object);
if (index >= 0) {
itemSet.add(listbox.getItemAtIndex(index));
}
} else if (listboxModel == null) {
// No model, assume Listitem.value to be used with selectedItems.
// iterate to find the selected item assume the value (select mold)
for (Object o : listbox.getItems()) {
final Listitem li = (Listitem) o;
if (object.equals(li.getValue())) {
itemSet.add(li);
}
}
} else {
throw new UiException("model of the databind listbox " + listbox + " must be an instanceof of org.zkoss.zkplus.databind.BindingListModel." + listboxModel);
}
}
}
return itemSet;
}
@SuppressWarnings({"unchecked"})
public Object coerceToBean(Object val, Component comp) {
final Listbox listbox = (Listbox) comp;
// As a result, the data binder expects a set of values
final Set valueSet = new HashSet();
if (val instanceof Iterable<?>) {
for (Object object : (Iterable<?>) val) {
if (object instanceof Listitem) {
final ListModel listboxModel = listbox.getModel();
final Listitem listitem = (Listitem) object;
if (listboxModel instanceof BindingListModel) {
// Elements in the model and listbox items are linked through their index.
valueSet.add(listboxModel.getElementAt(listitem.getIndex()));
} else if (listboxModel == null) {
// No model, assume Listitem.value to be used with selectedItems.
// iterate to find the selected item assume the value (select mold)
valueSet.add(listitem.getValue());
}
}
}
}
return valueSet;
}
}