我有一个JSF应用程序,其中有一个像这样的组合框。JSF onchange事件
<script type="text/javascript" defer="defer">
<!--//--><![CDATA[//><!--
helpKey = 'APPLICATION_EDIT_DATASOURCE';
function reapplyStyles() {}
function selectT(data){
if(data.status == "begin"){
$('editForm:selectTypeButton').click();
}
}
//--><!]]>
</script>
<h:form id="editForm">
<h:inputHidden id="id" value="#{applicationObject.objectId}"/>
<h:inputHidden id="type" value="#{applicationObject.object.type}"/>
<h:inputHidden id="selectedDSForApp" value="#{applicationObject.selectedDataSourceId}"/>
<ui:param name="activityDataSource" value="#{applicationObject.selectedDataSourceBean}"/>
<a4j:outputPanel id="activityDataSourceRulesPanel">
<h:panelGrid columns="2" columnClasses="padded" rowClasses="padded">
<h:outputText value="#{msgs.transformation_rule}"/>
<h:panelGroup>
<h:selectOneMenu id="dsTransformationRule" value="#{activityDataSource.selectedTransformationRule}"
disabled="#{!sp:hasRight(facesContext, 'ManageApplication')}"
readonly="#{!sp:hasRight(facesContext, 'ManageApplication')}">
<f:selectItems value="#{activityDataSource.transformationRules}"/>
</h:selectOneMenu>
<ui:fragment rendered="#{sp:hasRight(facesContext, 'ManageRules')}" >
<input type="button" value="#{msgs.button_ellipsis}" class="ruleEditorBtn"
onclick="SailPoint.Rule.Editor.edit($('editForm:dsTransformationRule').value,
'ActivityTransformer',
$('editForm:refreshActivityDataSourceRulesButton'))" />
</ui:fragment>
</h:panelGroup>
<h:outputText value="#{msgs.correlation_rule}"/>
<h:panelGroup>
<h:selectOneMenu id="dsCorrelationRule" value="#{activityDataSource.selectedCorrelationRule}"
disabled="#{!sp:hasRight(facesContext, 'ManageApplication')}"
readonly="#{!sp:hasRight(facesContext, 'ManageApplication')}">
<f:selectItems value="#{activityDataSource.correlationRules}"/>
</h:selectOneMenu>
<ui:fragment rendered="#{sp:hasRight(facesContext, 'ManageRules')}" >
<input type="button" value="#{msgs.button_ellipsis}" class="ruleEditorBtn"
onclick="SailPoint.Rule.Editor.edit($('editForm:dsCorrelationRule').value,
'ActivityCorrelation',
$('editForm:refreshActivityDataSourceRulesButton'))" />
</ui:fragment>
</h:panelGroup>
<h:outputText value="#{msgs.activity_data_src_type}"/>
<h:panelGroup>
<a4j:outputPanel id="collectorSettings">
<h:selectOneMenu id="collectorType"
value="#{activityDataSource.object.type}"
rendered="#{empty activityDataSource.object.id}"
disabled="#{!sp:hasRight(facesContext, 'ManageApplication')}"
readonly="#{!sp:hasRight(facesContext, 'ManageApplication')}">
<!-- onchange="$('editForm:selectTypeButton').click();"> -->
<f:ajax event="change"
onevent="selectT"
execute="@this dsTransformationRule dsCorrelationRule"
render="dsTransformationRule dsCorrelationRule"
listener="#{activityDataSource.handleCollectorTypeChange}" />
<f:selectItem itemValue="" itemLabel="#{msgs.select_collector_type}"/>
<f:selectItems value="#{activityDataSource.collectorTypes}"/>
</h:selectOneMenu>
<h:selectOneMenu id="fixedCollectorType" value="#{empty activityDataSource.object.type ? 'None' : activityDataSource.object.type}"
rendered="#{not empty activityDataSource.object.id}"
disabled="true"
readonly="true">
<f:selectItem itemValue="#{empty activityDataSource.object.type ? 'None' : activityDataSource.object.type}"
itemLabel="#{empty activityDataSource.object.type ? msgs.none : activityDataSource.object.type}"/>
</h:selectOneMenu>
</a4j:outputPanel>
</h:panelGroup>
</h:panelGrid>
</a4j:outputPanel>
<a4j:outputPanel id="configSettings">
<h:messages infoClass="formInfo" warnClass="formWarn" errorClass="formError" fatalClass="formError"/>
<h:panelGroup rendered="#{not empty activityDataSource.object.collector}">
<ui:include src="#{activityDataSource.configPage}"/>
</h:panelGroup>
</a4j:outputPanel>
<h:panelGroup>
<div class="buttonRow">
<ui:fragment rendered="#{sp:hasRight(facesContext, 'ManageApplication')}">
<h:commandButton id="activityDataSourceSave" action="#{activityDataSource.saveAction}" value="#{msgs.button_save}" styleClass="primaryBtn"/>
</ui:fragment>
<h:commandButton id="activityDataSourceCancel" action="#{activityDataSource.cancelAction}" value="#{msgs.button_cancel}" styleClass="secondaryBtn"/>
</div>
</h:panelGroup>
<a4j:commandButton id="refreshActivityDataSourceRulesButton"
style="display:none"
immediate="true"
render="activityDataSourceRulesPanel"/>
<a4j:commandButton id="selectTypeButton" action="#{activityDataSource.selectType}" style="display:none"
render="configSettings, collectorSettings"
oncomplete="initializeSelectedConfigPage();"/>
</h:form>
Bean类
public String getSelectedTransformationRule() {
if (_selectedTransformationRule == null) {
ActivityDataSourceDTO dto = getObject();
if (dto != null)
_selectedTransformationRule = dto.getTransformationRule();
}
return _selectedTransformationRule;
}
public String getSelectedCorrelationRule() {
if (_selectedCorrelationRule == null) {
ActivityDataSourceDTO dto = getObject();
if (dto != null)
_selectedCorrelationRule = dto.getCorrelationRule();
}
return _selectedCorrelationRule;
}
在上面的代码中,我有一个正常的onchange事件&一个Ajax平变化上组合框元素的id = collectorType事件。
对JSF中的相同元素使用两个更改是否有任何限制。
另外我怎样才能合并第一次onchange到ajax onchange。
其工作。但我注意到,在调试与我想要渲染的元素相关的bean中的该方法时会调用两次。如何处理这个? –
@CODEFISH到底什么叫两次?你的'render'属性中的元素是什么? –
我解开了我的问题。 bean类的这两个方法在change事件上被调用两次.ajax change事件在元素id = collectorType中。 –