我正在尝试从我的 selectOneMenu onchange 中获取所选项目,但它不起作用。每次我更改下拉菜单并选择另一个选项时,我的网络浏览器上的控制台都会显示
属性“getOffset”的值为 null 或未定义,不是 Function 对象
这是我的 .xhtml 页面,名为 ProgramDetails.xhtml
<h:dataTable id="DispatchConfigurationCustom" columnClasses="portlet-table-same portlet-table-cell" headerClass="portlet-table-same portlet-table-cell" value="#{CRUDOperatorProgram.workflowStepList}" var="workflowConfig" width="100%">
<h:column>
<f:facet name="header">
<h:outputText value="Include" />
</f:facet>
<h:selectBooleanCheckbox id="includeInd" value="#{workflowConfig.isIncludedInd}"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Automate" />
</f:facet>
<h:selectOneRadio id="onOff" value="#{workflowConfig.isAutomatedInd}">
<f:selectItem id="onButton" itemLabel="On" itemValue="1" />
<f:selectItem id="offButton" itemLabel="Off" itemValue="0" />
</h:selectOneRadio>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Action Step" />
</f:facet>
<h:outputText value="#{workflowConfig.workflowStep.displayLabel}" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Offset Prior" />
</f:facet>
<label for="offsetPriorBoxHour"><h:outputText value="hrs:" rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification'}" /></label>
<h:selectOneMenu styleClass="portlet-dropdown" rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification'}" id="offsetPriorBoxHour" value="#{workflowConfig.offsetMinutes}" onchange="getOffset(this);">
<f:selectItems value="${CRUDOperatorProgram.hourList}" />
</h:selectOneMenu>
<label for="offsetPriorBoxMin"><h:outputText value="min:" rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification' or workflowConfig.workflowStep.displayLabel == 'Multisite Follow Up' or workflowConfig.workflowStep.displayLabel == 'Curtail Toggle'}" /></label>
<h:selectOneMenu styleClass="portlet-dropdown" rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification' or workflowConfig.workflowStep.displayLabel == 'Multisite Follow Up' or workflowConfig.workflowStep.displayLabel == 'Curtail Toggle'}" id="offsetPriorBoxMin" value="#{workflowConfig.offsetMinutes}" onchange="getOffset(this);">
<f:selectItems value="${CRUDOperatorProgram.minuteList}" />
</h:selectOneMenu>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Offset After" />
</f:facet>
<label for="offsetAfterBoxMin"><h:outputText value="min:" rendered="#{workflowConfig.workflowStep.displayLabel == 'Restore Notification' or workflowConfig.workflowStep.displayLabel == 'Overlapping Follow Up' or workflowConfig.workflowStep.displayLabel == 'Restore'}" /></label>
<h:selectOneMenu styleClass="portlet-dropdown" rendered="#{workflowConfig.workflowStep.displayLabel == 'Restore Notification' or workflowConfig.workflowStep.displayLabel == 'Overlapping Follow Up' or workflowConfig.workflowStep.displayLabel == 'Restore'}" id="offsetAfterBoxMin" value="#{workflowConfig.offsetMinutes}" onchange="getOffset(this);">
<f:selectItems value="${CRUDOperatorProgram.minuteList}" />
</h:selectOneMenu>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Offset Target" />
</f:facet>
<h:outputText rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification' or workflowConfig.workflowStep.displayLabel == 'Multisite Follow Up' or workflowConfig.workflowStep.displayLabel == 'Curtail Toggle'}" id="offsetTargetStartBox" value="Start" />
<h:outputText rendered="#{workflowConfig.workflowStep.displayLabel == 'Restore Notification' or workflowConfig.workflowStep.displayLabel == 'Overlapping Follow Up' or workflowConfig.workflowStep.displayLabel == 'Restore'}" id="offsetTargetEndBox" value="End" />
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Offset Summary" />
</f:facet>
<h:outputText rendered="#{workflowConfig.workflowStep.displayLabel == 'Curtail Notification' or workflowConfig.workflowStep.displayLabel == 'Multisite Follow Up' or workflowConfig.workflowStep.displayLabel == 'Curtail Toggle'}" id="offsetSummaryBeforeBox" value="before Start time" />
<h:outputText rendered="#{workflowConfig.workflowStep.displayLabel == 'Restore Notification' or workflowConfig.workflowStep.displayLabel == 'Overlapping Follow Up' or workflowConfig.workflowStep.displayLabel == 'Restore'}" id="offsetSummaryAfterBox" value="after End time" />
</h:column>
<script>
function getOffset( dropdown ) {
var minutesTemp = dropdown.options[dropdown.selectedIndex].value;
var minutes = minutesTemp.toString();
alert("Minutes: " + minutes);
// <![CDATA[
if(document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetPriorBoxHour') != null) {
var hourBox = document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetPriorBoxHour');
var hourTemp = hourBox.options[hourBox.selectedIndex].value;
var hour = hourTemp.toString();
document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetSummaryBeforeBox').value = hours + " hours and " + minutes + " minutes before Start time";
} else if(document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetSummaryBeforeBox') != null) {
document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetSummaryBeforeBox').value = minutes + " minutes before Start time";
} else {
document.getElementById('ProgramDetails:DispatchConfigurationCustom:0:offsetSummaryAfterBox').value = minutes + " minutes before Start time";
}
//]]>
}
</script>
</h:dataTable>
这些是填充 selectOneMenu 的 hourList 和 minuteList 方法...
private void loadMinuteList() {
minuteList = new ArrayList<SelectItem>();
for(Integer i=0; i<=60; i++){
minuteList.add(new SelectItem(i, i.toString()));
}
}
private void loadHourList() {
hourList = new ArrayList<SelectItem>();
for(Integer i=0; i<=30; i++){
hourList.add(new SelectItem(i, i.toString()));
}
}
对不起所有长代码块。我只是想给你我能提供的最多信息。我使用 javascript 的方式有问题吗?还是 onchange=""?