我有一个简单的表单，它由使用 ListView 的表单中的可变数量的元素组成。每个元素都在一个表格行中，并包含一个名称（带有一个可以正常工作的链接）和一个 CheckBox，该复选框将该行标记为删除。只有复选框在表单中是可编辑的。表格底部是一个“删除选定”按钮，用于删除所有带有选定检查的条目。
我曾尝试使用 RepeatingView 和 ListView 执行此操作，但两者都有相同的问题 - 提交表单时复选框的内部模型状态未更新 - 它们总是错误的。在 SearchWrapper 类的 setSelected 方法中，永远不会显示记录器输出（其他记录是所以它不是记录问题）
谁能明白为什么这是错误的？
public class SavedSearchesTab extends Panel
{
private static final Logger LOGGER = ...
/**
*
*/
public SavedSearchesTab( String p_id )
{
super( p_id );
Form<?> l_form = new Form<Object>( "savedsearchform" ) {
/**
* @see org.apache.wicket.markup.html.form.Form#onSubmit()
*/
protected void onSubmit()
{
LOGGER.info( "Form Submitted!" );
for( String l_paramName : getRequest().getRequestParameters().getParameterNames() ) {
LOGGER.info( "FormParam: " + l_paramName + ", value=" + getRequest().getRequestParameters().getParameterValue( l_paramName ) );
}
onDeleteSelected();
}
};
l_form.setOutputMarkupId( true );
add( l_form );
List<UserSavedSearch> l_searches = getSearches();
ListView<UserSavedSearch> l_repeater = new ListView<UserSavedSearch>( "repeater", l_searches ) {
protected void populateItem( final ListItem<UserSavedSearch> p_item )
{
final UserSavedSearch l_search = p_item.getModelObject();
SearchWrapper l_wrapper = new SearchWrapper( l_search );
AjaxLink<UserSavedSearch> l_link = new AjaxLink<UserSavedSearch>( "searchnamelink" ) {
private static final long serialVersionUID = 1L;
public void onClick( AjaxRequestTarget p_target )
{
selectSearch( l_search );
}
};
String l_linkText = l_search.getName();
Label l_linkLabel = new Label( "searchnamelabel", l_linkText );
l_link.add( l_linkLabel );
p_item.add( l_link );
TextArea<String> l_descriptionArea = new TextArea<String>( "searchsummary", new Model<String>( toSummary( l_search ) ) );
p_item.add( l_descriptionArea );
CheckBox l_checkbox = new CheckBox("searchcheckbox", new PropertyModel<Boolean>( l_wrapper, "selected" ) );
p_item.add( l_checkbox );
}
};
l_repeater.setReuseItems( true );
l_form.add(l_repeater);
}
private List<UserSavedSearch> getSearches() {
List<UserSavedSearch> l_searches = new ArrayList<UserSavedSearch>();
// Make a couple of example ones for testing
UserSavedSearch l_eg = new UserSavedSearch();
l_eg.setName( "Example Search 1" );
l_eg.setSearchArea( SearchArea.CUSTOMERS );
l_searches.add( l_eg );
l_eg = new UserSavedSearch();
l_eg.setName( "Example Search 2" );
l_eg.setSearchArea( SearchArea.CUSTOMERS );
l_searches.add( l_eg );
return l_searches;
}
private String toSummary( UserSavedSearch p_search ) {
return "Summary of " + p_search.getName(); // TODO
}
protected void onDeleteSelected() {
}
protected void selectSearch( UserSavedSearch p_search ) {
LOGGER.info( "Search " + p_search.getName() + " should be displayed!" );
}
private class SearchWrapper implements Serializable {
private static final long serialVersionUID = 1L;
private UserSavedSearch m_data;
private Boolean m_toDelete;
public SearchWrapper( UserSavedSearch p_data ) {
m_data = p_data;
m_toDelete = false;
}
public boolean isSelected() {
return m_toDelete;
}
public void setSelected( boolean p_selected ) {
LOGGER.info( "SETTING SEARCHWRAPPER SELECTED STATE: " + p_selected );
m_toDelete = p_selected;
}
public UserSavedSearch getSearch() {
return m_data;
}
}
HTML：
<wicket:panel>
<span class="sectiontitle"><wicket:message key="sectiontitle">savedsearches</wicket:message></span>
<form wicket:id="savedsearchform">
<fieldset>
<table id="savedsearchtable">
<tbody wicket:id="repeater">
<tr>
<td><input wicket:id="searchcheckbox" type="checkbox" name="searchselect" wicket:message="value:fragment.select.search" /></td>
<td><a href="#" wicket:id="searchnamelink"><span wicket:id="searchnamelabel">searchname</span></a></td>
</tr>
<tr>
<td colspan="2"><textarea wicket:id="searchsummary" readonly="readonly" rows="3" cols="100"/></td>
</tr>
</tbody>
<tr class="buttonPanel">
<td colspan="2">
<input type="submit" wicket:message="value:button.deleteselectedsearches"/>
</td>
</tr>
</table>
</fieldset>
</form>
</wicket:panel>
提前致谢。