primefaces自动完成事件项目在ManagedBean中选择侦听器值null [英] primefaces autocomplete event itemSelect listener value null in ManagedBean

问题描述

我正在使用Primefaces 3.4.2自动完成功能.

I am using Primefaces 3.4.2 Autocomplete.

在ManagedBean中，当我在自动完成中键入字符时选择一行时，无法在方法handleSelect(SelectEvent event) {

In ManagedBean when I select a row as I type characters in autocomplete, I am not able to get the value in method handleSelect(SelectEvent event) {

这可能是什么原因?理想情况下，当我从自动完成值中选择一行时，我想填充或填充jsf页面中的其他列.

What could be the reason for this? Ideally I would like to fill or populate other columns in jsf page when I select a row from autocomplete values.

自动完成的JSF代码

<p:autoComplete value="#{empMB.selectedEmployee}"
                            id="basicPojo" minQueryLength="3" 
                            completeMethod="#{myMB.complete}" var="p"
                            itemLabel="#{p.empName}" 
                             converter="#{employeeNameConverter}"
                            forceSelection="true" >                           
                            <p:ajax event="itemSelect" 
                            listener="#{myMB.handleSelect}" /> 

ManagedBean方法

ManagedBean method

public void handleSelect(SelectEvent event) {
String value = (String) event.getObject();
System.out.println("selected "+value);

推荐答案

原因是您没有在p:autoComplete组件中提供itemValue属性.

The reason is you didn't provide itemValue attribute in p:autoComplete component.

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