I have changed the code to "ajax like'. But the problem also could not be
solved.
The code bellow do not change the palette's selected values and let it empy.
But I really have choice some value before. Why? Could anyone help me,
thanks!
if(selectedMap.containsKey(nowSelectedValue)){
setSelectedList((ArrayList)selectedMap.get(nowSelectedValue));
testResult("getSelectedList",getSelectedList());
}
-----------------------------
the code below:
package palette_choice;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import wicket.ajax.AjaxRequestTarget;
import wicket.ajax.form.AjaxFormComponentUpdatingBehavior;
import wicket.ajax.form.AjaxFormSubmitBehavior;
import wicket.extensions.markup.html.form.palette.Palette;
import wicket.markup.html.WebPage;
import wicket.markup.html.form.ChoiceRenderer;
import wicket.markup.html.form.DropDownChoice;
import wicket.markup.html.form.Form;
import wicket.model.CompoundPropertyModel;
import wicket.model.PropertyModel;
public class PaletteChoice extends WebPage implements Serializable
{
private static final long serialVersionUID = 1L;
private Form form;
private DropDownChoice choice;
private Palette palette ;
private Map mainMap=new HashMap();
private Map availibleMap=new HashMap();
private Map selectedMap=new HashMap();
private List availibleList=new ArrayList();
private List selectedList=new ArrayList();
private String mainChoice;
public PaletteChoice(){
final Map mainMap=new HashMap();
//List mainList=new ArrayList();
final Map availibleMap=new HashMap();
final Map selectedMap=new HashMap();
// data
mainMap.put("A","0");
mainMap.put("B","1");
Set mainKeySet=mainMap.keySet();
Iterator it=mainKeySet.iterator();
while(it.hasNext()){
Object ok=it.next();
ArrayList availibleList=new ArrayList();
for(int i=0;i<5;i++){
availibleList.add(String.valueOf(ok)+i);
}
availibleMap.put(ok, availibleList);
List selectedList=new ArrayList();
selectedMap.put(ok,selectedList);
}
List mainList=new ArrayList();
Set tmpSet=mainMap.keySet();
Iterator tmpIt=tmpSet.iterator();
while(tmpIt.hasNext()){
mainList.add((Serializable)tmpIt.next());
}
form = new Form("form",new CompoundPropertyModel(this));
form.setOutputMarkupId(true);
add(form);
choice = new DropDownChoice( "mainChoice",mainList);
choice.add(new AjaxFormComponentUpdatingBehavior("onChange")
{
protected void onUpdate(AjaxRequestTarget
target)
{
String nowSelectedValue=getMainChoice();
setMainChoice(nowSelectedValue);
System.out.println("choice:"+nowSelectedValue);
if(mainMap.containsKey(nowSelectedValue)){
if(availibleMap.containsKey(nowSelectedValue)){
setAvailibleList((ArrayList)availibleMap.get(nowSelectedValue));
testResult("getAvailibleList",getAvailibleList());
}
if(selectedMap.containsKey(nowSelectedValue)){
setSelectedList((ArrayList)selectedMap.get(nowSelectedValue));
testResult("getSelectedList",getSelectedList());
}
}
target.addComponent(palette);
}
});
choice.setOutputMarkupId(true);
form.add(choice);
palette = new Palette("palette",new PropertyModel(
this,"selectedList"), new PropertyModel(this,"availibleList"),new
ChoiceRenderer("toString","toString"), 10, false);
palette.setOutputMarkupId(true);
palette.getRecorderComponent().add(new
AjaxFormSubmitBehavior(form,
"onchange")
{
protected void onSubmit(AjaxRequestTarget target) {
String nowSelectedValue=getMainChoice();
if(mainMap.containsKey(nowSelectedValue)){
/*
if(availibleMap.containsKey(nowSelectedValue)){
availibleMap.put(nowSelectedValue,getAvailibleList());
System.out.println("size:"+((ArrayList)availibleMap.get(nowSelectedValue)).size());
}
*/
if(selectedMap.containsKey(nowSelectedValue)){
selectedMap.put(nowSelectedValue,getSelectedList());
}
System.out.println("******");
//target.addComponent(choice)
;
}
}
});
form.add(palette);
}
public List getAvailibleList() {
return availibleList;
}
public void setAvailibleList(List availibleList) {
this.availibleList = availibleList;
}
public List getSelectedList() {
return selectedList;
}
public void setSelectedList(List selectedList) {
this.selectedList = selectedList;
}
public String getMainChoice() {
return mainChoice;
}
public void setMainChoice(String mainChoice) {
this.mainChoice = mainChoice;
}
public void testResult(String info,List list)
{
System.out.println(info+" ***begin***");
Iterator it=list.iterator();
while(it.hasNext()){
System.out.println(it.next());
}
System.out.println(info+" ***end***");
}
}
------------------------------------
The console show:
choice:A
getAvailibleList ***begin***
A0
A1
A2
A3
A4
getAvailibleList ***end***
getSelectedList ***begin***
getSelectedList ***end***
******
choice:B
getAvailibleList ***begin***
B0
B1
B2
B3
B4
getAvailibleList ***end***
getSelectedList ***begin***
getSelectedList ***end***
******
choice:A
getAvailibleList ***begin***
A0
A1
A2
A3
A4
getAvailibleList ***end***
getSelectedList ***begin***
A0
getSelectedList ***end***
--
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