Question

实际上我在使用带内容动态的Dialog时出现问题，当我提出一个commandButton我希望出现一个Dialog，但内容的对话框没有出现

XHTML

</p:treeTable>
        <p:commandButton value="Add" action="#{showEn.displaySelectedNode}" oncomplete="PF('dialogWidget').show()"/>
    </h:form>
    <p:dialog appendTo="@(body)" id="dialog" widgetVar="dialogWidget">
        <ui:include src="#{showEn.dialog}"/>
    </p:dialog>

爪哇

public void displaySelectedNode(){
if(!dialogs[0].equals("-")){
        this.dialog="addEn.xhtml";
    }else if(!dialogs[1].equals("-")){
        this.dialog="addCu.xhtml";
    }else if(!dialogs[2].equals("-")){
        this.dialog="addTa.xhtml";
    }
}
public String getDialog() {
    return dialog;
}
public void setDialog(String dialog) {
    this.dialog = dialog;
}

Answer 1

必须包装对话框标记，然后更新包装器。

<h:panelGroup id='wrapper' >
     <p:dialog appendTo="@(body)" id="dialog" widgetVar="dialogWidget" 
dynamic="true" /* given that the src is evaluated during the build phase, 
the use of dynamic content offer a second update
    */>
            <ui:include src="#{showEn.dialog}"/>
     </p:dialog>
</panelGroup>
<p:commandButton value="Add" action="#{showEn.displaySelectedNode}"     
        oncomplete="PF('dialogWidget').show()" update="wrapper" />

此解决方案的问题是，如果已加载对话框，内容将不会更改

我建议尝试这个解决方案：

java

private boolean urlChanged;
public boolean isUrlChanged(){
    if (urlChanged){
        urlChanged = false; 
        return true;
    }
    return false;
}
public void displaySelectedNode(){
 urlChanged = true;
   if(!dialogs[0].equals("-")){
        this.dialog="addEn.xhtml";
    }else if(!dialogs[1].equals("-")){
        this.dialog="addCu.xhtml";
    }else if(!dialogs[2].equals("-")){
        this.dialog="addTa.xhtml";
    }
}

XHTML

<p:dialog appendTo="@(body)" id="dialog" widgetVar="dialogWidget" 
dynamic="false" /* no need for that */>
       <h:panelGroup id='wrapper' >
            <p:remoteCommand name="updateAgain" update="wrapper"/>
            <c:if test="#{showEn.isUrlChanged}"><script>updateAgain();</script></c:if>
            <ui:include src="#{showEn.dialog}"/>
       </panelGroup>  
</p:dialog>

<p:commandButton value="Add" action="#{showEn.displaySelectedNode}"     
        oncomplete="PF('dialogWidget').show()" update="wrapper" />

Answer 2

最后我已经取得了很好的工作，问题是我正在使用primefaces 5的primefaces版本，这个麻烦的正确版本是primefaces版本4.无论如何，谢谢。 ;）

带有src动态的Dialog primefaces

2 个答案: