王子面临ajax更新不工作多个ID

Question

primce面临ajax更新无法处理多个ID

<h:outputLabel value="Complementry Request Letter No"></h:outputLabel>
                        <p:selectOneMenu  value="#{scmComplementaryInfoResponseManager.complementaryRequestLetterNo}" maxlength="30" editable="true"> 
                            <f:selectItem itemLabel="Select Letter No" itemValue="null"></f:selectItem>
                                <f:selectItems value="#{scmComplementaryInfoResponseManager.complementaryRequestLetterNoList}"></f:selectItems>
                         <p:ajax listener="#{scmComplementaryInfoResponseManager.populateDataByLetterNo(scmComplementaryInfoResponseManager.complementaryRequestLetterNo)}" event="change"  update="@form" process="@this"/>
                        </p:selectOneMenu>