primefaces：如何设置动态 oncomplete 事件值，如 oncomplete="#backingbean.oncomplete"

Question

我想通过单个按钮显示不同的对话框取决于 backingbean 计算。就像显示消息 "Bill no has been paid already"，如果客户输入重复的帐单号，如果帐单号没问题则显示 "Bill has been paid successfully"。我怎样才能做到这一点？

backingbean class:

private String oncomplete="";

public String getOncomplete() {
    return oncomplete;
}

public void setOncomplete(String oncomplete) {
    this.oncomplete = oncomplete;
}

public void bill_fees_calculation(){
    if(bill_no=="wrong"){
        oncomplete = "PF('wrongDialog').show()";        
    }
    else{
        oncomplete = "PF('rightDialog').show()"; 
    }
}

在我的 xhtml 中：

<p:commandButton oncomplete="#{backingbean.bill_fees_calculation}" icon="ui-icon-search" title="View" update=""/>

<p:dialog header="Bill Info" widgetVar="wrongDialog" modal="false" showEffect="fade" hideEffect="explode" resizable="false" closable="true" closeOnEscape="true">

        <p:outputPanel id="billDetail" autoUpdate="true" style="text-align:center;">
            <p:panelGrid  columns="2" columnClasses="label,value">                    

                <h:outputText value="Output:" />
                <h:outputText value="Bill no has been paid already" />                                        
            </p:panelGrid>
        </p:outputPanel>
    </p:dialog>

<p:dialog header="Bill Info" widgetVar="rightDialog" modal="false" showEffect="fade" hideEffect="explode" resizable="false" closable="true" closeOnEscape="true">

        <p:outputPanel id="billDetail" autoUpdate="true" style="text-align:center;">
            <p:panelGrid  columns="2" columnClasses="label,value">                    

                <h:outputText value="Output:" />
                <h:outputText value="Bill no has been paid successfully" />                                        
            </p:panelGrid>
        </p:outputPanel>
    </p:dialog>

Answer 1

您可以使用 RequestContext#execute() 以编程方式声明应在当前 ajax 请求完成时执行的 JavaScript 代码。

public void billFeesCalculation() {
    RequestContext requestContext = RequestContext.getCurrentInstance();

    if ("wrong".equals(billNo)) {
        requestContext.execute("PF('wrongDialog').show()");
    }
    else{
        requestContext.execute("PF('rightDialog').show()");
    }
}

请注意，我修复了原始代码段中的其他（severe）问题。

与具体问题无关，如果您只使用一个带有动态（面孔）消息的对话框，它会更干净并且 DRY 代码。

primefaces：如何设置动态 oncomplete 事件值，如 oncomplete="#backingbean.oncomplete"

primefaces: how to set dynamic oncomplete event value like oncomplete="#backingbean.oncomplete"

jsf

primefaces