Primefaces DataGrid - CommandLink 不工作 [英] Primefaces DataGrid - CommandLink is not working

问题描述

我有嵌套 UI 组件的问题，这可能是 PrimeFaces 和 Mojara 中的已知错误.但是我不知道我该如何解决.

i have an issue with nested UI components which is probably a known bug in PrimeFaces and Mojara. However I have no idea how can i solve it.

我们有一个带有上传器的图片库，我希望能够从数据网格中删除图片，所以

We have a image gallery with uploader and I want to be able to delete images from the datagrid, so

XHTML:

<h:form enctype="multipart/form-data">

            <p:fileUpload fileUploadListener="#{pictureManagementBean.handleFileUpload}"  
                    mode="advanced"  
                    update="gallery messages"  
                    auto="true"                    
                    allowTypes="/(.|/)(gif|jpe?g|png)$/"
                    />  

            <p:growl id="messages" showDetail="true"/>  

            <p:dataGrid var="item" value="#{pictureManagementBean.pictures}" id="gallery">  
                <p:panel header="#{item.pictureName}" style="text-align:center">  
                    <h:panelGrid columns="1" style="width:100%">  

                        <p:graphicImage value="#{item.thumbnailDir}" />                             
                        <h:outputText value="#{item.createdate.toString()}" />                           
                        <p:commandLink value="Delete" 
                                       action="#{pictureManagementBean.removePicture(item.idpicture)}" ajax="false"/>

                    </h:panelGrid>  
                </p:panel>  
            </p:dataGrid>  

        </h:form>  

目前根本不起作用的是 DataGrid 中的 commandLink Delete.其他都还好.

Basically what is not working at the momment - at all - is the commandLink Delete in the DataGrid. The rest is fine.

是否有任何解决方法?我试过:列，ajax，没有 ajax ......没有任何效果.我所能做的就是获取 DataGrid 之外的按钮.但这并不是我真正想要的.

Is there any walkaround to this? I've tried: columns, ajax, no ajax... nothing works. All i can do is get the button outside the DataGrid. But that's not really what I want.

感谢任何帮助.

[小事:令人惊讶的是，我在 DataTable 和 Columns 中使用 commandLink 没有问题！]

来自 maven 的 Primefaces 3.4RC1.(也不适用于 3.3.1)

Primefaces 3.4RC1 from maven. (didnt work on 3.3.1 either)

好的，所以我发现了一件事:在 <p:dataGrid> 内，如果我使用任何东西，但 p:columns 它不起作用.但是视图很糟糕……我应该使用 CSS 来修复它吗?

ok so I've found one thing: inside <p:dataGrid> if I use anything BUT p:columns its not working. But then the view is terrible... should I just use CSS to fix it?

推荐答案

@Maple_shaft 你说得对！

@Maple_shaft you are so right!

正确的代码:

<p:dataGrid var="item" value="#{pictureManagementBean.pictures}" id="gallery">  
                <p:column>
                    <p:panel header="#{item.pictureName}" style="text-align:center"> 
                    <h:panelGrid columns="1" style="width:100%"> 

                        <p:graphicImage value="#{item.thumbnailDir}" />                             
                        <h:outputText value="#{item.createdate.toString()}" />                           
                        <p:commandLink value="Delete" 
                                       action="#{pictureManagementBean.removePicture(item.idpicture)}" ajax="false"/>

                    </h:panelGrid>
                    </p:panel>
                </p:column>
            </p:dataGrid>  

所以只是简单的列元素.我之前只是放错了地方.非常感谢.

So just simple column element. I've just places it wrong before. Thanks so much.

当然支持 bean 是@ViewScoped！

Of course backing bean is @ViewScoped!

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