Hi.
This page was made fast and I hope don't be a nuisance to someboby
首先我們定義backbean來管理我們的 selectMany "list" :
<managed-bean>
<managed-bean-name>Manager</managed-bean-name>
<managed-bean-class>demo.Manager</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-bean>
現在Manager類應該有個 SelectMany object來管理信息;
?
package?demo;
import?javax.faces.component.UISelectMany;
import?javax.faces.component.UIComponent;
class?Manager{
???
????private?UISelectMany?list;
???????
??????/*
???????*?Here?we?must?create?our?list?of?objects
???????*?obviously?we?may?add?a?cycle?"while"?or?"for"?
???????*?if?we?wouldn't?know?the?number?of?items
???????*/?
????public?UIComponentBase?getList(){
??????
?????????list=new?UISelectMany();
?????????SelectItem?item?=?new?SelectItem(?"value",?"Description"?);
?????????UISelectItem?uiItem?=?new?UISelectItem();
?????????uiItem.setValue(?item?);
?????????
?????????list.getChildren().add(?uiItem?);
??????
??????return?list;
????}
????public?void?setList(UIComponentBase?list){
????????this.list=(UISelectMany)list;?
????}
????
???public?void?actionListener(ActionEvent?ev){
???????
???????Object?obj?[]?=?list.getSelectedValues();
???????//?obj?is?an?array?of?string?that?contents?the?values?of?our?selectItems
???}
} |
?
JSP頁面的代碼如下:?
<h:selectManyMenu binding="#{Manager.list}">
如果你想使用CheckBox or a ListBox僅僅在JSF文件中該變標簽就可以了.如 <h:selectManyCheckBox> by either <h:selectManyListbox> or <h:selectManyCheckbox>, it is great!!