以下代码在布局中实现数据表,在数据表中我在每行中添加了一个编辑按钮
<p:dataTable id="tbl" var="person" value="#{mybean.listPersons}" >
<p:column>
<f:facet name="header">
<h:outputText value="Name " />
</f:facet>
<h:outputText value="#{person.name}" />
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Age :" />
</f:facet>
<h:outputText value="#{person.age}" />
</p:column>
<p:column>
<p:commandButton icon="ui-icon-pencil"
oncomplete="PF('dlg1').show();" action="mybean.setSelectedPerson(person)" />
</p:column>
</p:dataTable>
当我点击编辑按钮时,会显示对话框(下面的代码),但输入为空,我想要的是显示对话框中行的信息,我还是初学者,我到处搜索......但没有结果
<p:dialog header="Modify" widgetVar="dlg1" >
<h:form >
<p:growl id="msgs" showDetail="true" />
<h:panelGrid id="form2" value="#{myBean.person}" var="person">
<p:outputLabel value="Name :" />
<p:inputText value="#{person.name}" />
<p:outputLabel value="Age :" />
<p:inputText value="#{person.age}" />
<p:commandButton value="Submit" action="#{myBean.modifyPerson(person)}" />
</h:panelGrid>
</h:form>
</p:dialog>
@ManagedBean
@RequestScoped
public class muBean implements Serializable{
private Person selectedPerson;
//getter and setter
public void modifyPerson(Person p) {
this.selectedPerson = p;
}
}
如果有人能提供帮助,我将非常感激,我真的需要这个
答案 0 :(得分:-1)
将命令按钮更改为以下内容,使用actionlistener:
<p:commandButton icon="ui-icon-pencil" update=":persondlgid" oncomplete="dlg1.show();" actionListener ="mybean.findSelectedPerson">
<f:param name="personalid" value="#{person.id}" />
<p:commandButton/>
这是对话框,为其添加id属性。然后将面板网格的值更改为selectedPerson,因为这对应于managedbean中的正确对象:
<p:dialog header="Modify" widgetVar="dlg1" id="persondlgid" >
<h:form>
<p:growl id="msgs" showDetail="true" />
<h:panelGrid id="form2" value="#{myBean.selectedPerson}" var="person">
<p:outputLabel value="Name :" />
<p:inputText value="#{person.name}" />
<p:outputLabel value="Age :" />
<p:inputText value="#{person.age}" />
<p:commandButton value="Submit" action="#{myBean.modifyPerson(person)}" />
</h:panelGrid>
</h:form>
</p:dialog>
托管bean函数应如下所示。单击按钮时会调用此动作侦听器,然后它会检索所选人员的ID并循环遍历人员列表以找到您要查找的人员:
public void findSelectedPerson(ActionEvent event){
if(event.getComponent().getAttributes().get("personid") != null){
Map<String,String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
int personid = (params.get("personid")!= null) ? Integer.parseInt(params.get("personid")) : -1;
// Loop through the persons array
for(Person p : listPersons){
if(p.getId() == personid){
selectedPerson = p;
break;
}
}
}