打开< p：dialog>从bean通过RequestContext＃execute（） [英] Open <p:dialog> from bean by RequestContext#execute()

问题描述

我有这个表单与一个面板网格和一个对话框：

I have this form with a panel grid and a dialog:

<h:form id="regiForm">
    <p:panelGrid>
        <p:row style="height:30%">           
            <p:column>
                <h:outputText/> 
            </p:column>     
            <p:column>
                <p:commandButton style="width:350px" type="submit" actionListener="#
                {regiBean.showDialog}" id="ajax" value="#{msg['regi_button']}" update="regiForm"   process="@this"/>
            </p:column>  
            <p:column>
            </p:column>  
        </p:row>  
    </p:panelGrid>
    <p:dialog id="dialog" header="#{msg['regi_dialog_header']}" widgetVar="myDialog"  position="center center" >  
        <h:outputText value="#{msg['regi_dialog']}" />  
    </p:dialog>
</h:form>

我想从动作监听器内部打开对话框：

I would like to open the dialog from inside the action listener:

public void showDialog() {
    RequestContext.getCurrentInstance().execute("dialog.show()");
    RequestContext.getCurrentInstance().execute("myDialog.show()");
}

但是，该对话框未显示。这是如何引起的，如何解决？

However, the dialog is not shown. How is this caused and how can I solve it?

我使用的是JSF 2.1和PrimeFaces 3.5。

I'm using JSF 2.1 and PrimeFaces 3.5.

推荐答案

使用命令的第一个语句

RequestContext.getCurrentInstance().execute("dialog.show()");

将无法正常工作，因为对话框指的是 p：dialog 组件的XHTML ID。这将导致一个JavaScript错误。这可能是第二个命令的原因

won't work because dialog refers to the XHTML ID of the p:dialog component. This will cause an javascript error. And that could be the reason why the second command

RequestContext.getCurrentInstance().execute("myDialog.show()");

不会执行。
此外，我将添加; 到每个Javascript命令的末尾（但这只是我的个人风格）

won't get executed. Also I would add ; to the end of each Javascript command (but this is just my personal style)

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