Primefaces DataTable 的列特定上下文菜单

问题描述

如何在 Primefaces 数据表中为每一列定义不同的上下文菜单?将 放在 中无法正常工作.我希望上下文菜单根据用户右键单击的列而有所不同.

How can I define context menu for each column differently in Primefaces datatable? Putting <p:contextMenu> inside <p:column> does not work properly. I want context menu to be different depending on which column user right-clicked in.

这不起作用(为所有列创建的上下文菜单都相同):

This does not work (context menu is created the same for all columns):

<p:dataTable value="#{values}" var="value" selectionMode="single" selection="#{selectedValue}" id="table">
    <p:column headerText="Col 1">
        <h:outputText value="#{value.balance}">
            <f:convertNumber type="currency"></f:convertNumber>
        </h:outputText>
        <p:contextMenu>
            <p:menuitem value="Report"></p:menuitem>
            <p:menuitem value="Change"></p:menuitem>
        </p:contextMenu>
    </p:column>
    <p:column headerText="col 2" >
        <h:outputText value="#{value.balance2}">
            <f:convertNumber type="currency"></f:convertNumber>
        </h:outputText>
    <p:contextMenu>
        <p:menuitem value="Something else"></p:menuitem>
    </p:contextMenu>
    </p:column>
</p:dataTable>

如何通过使用 PF 组件、扩展 PF 组件或添加自定义 JavaScript 在 Primefaces 数据表中添加特定于列的上下文菜单?

How to add column-specific context menu in Primefaces dataTable either by using PF components, extending PF components, or adding custom JavaScript?

推荐答案

你试过了吗(我刚刚用 Primefaces 3.5 测试过):ContextMenu 可以附加到任何 JSF 组件，primefaces 数据表中的每一行都有私有和动态 id(例如::carList:0:test1 :carList:1:test1 ...)，所以我认为你应该在列中使用 contextMenu:

Have you tried(I have just tested with Primefaces 3.5):ContextMenu can be attached to any JSF component, each of rows in primefaces datatable has private and dynamic id(ex: :carList:0:test1 :carList:1:test1 ...), so I think you should use contextMenu inside column:

                 <p:column headerText="Model">
                    <p:panel id="test1">
                        <h:outputText value="#{carr.model}" />
                        <p:contextMenu for="test1" widgetVar="cMenu">
                            <p:menuitem value="Edit Cell" icon="ui-icon-search"
                                        onclick="product.showCellEditor();return false;" />
                            <p:menuitem value="Hide Menu" icon="ui-icon-close"
                                        onclick="cMenu.hide()" />
                        </p:contextMenu>
                    </p:panel>
                </p:column>
                <p:column headerText="MANUFAC" style="width:20%">
                    <p:panel id="test2">
                        <h:outputText value="#{carr.manufacturer}" />
                        <p:contextMenu for="test2" widgetVar="cMenu2">
                            <p:menuitem value="Edit Cell" icon="ui-icon-search"
                                        onclick="product.showCellEditor();return false;" />
                            <p:menuitem value="Hide Menu" icon="ui-icon-close"
                                        onclick="cMenu2.hide()" />
                            <p:menuitem value="Hide Menu" icon="ui-icon-close"
                                        onclick="cMenu2.hide()" />
                        </p:contextMenu>
                    </p:panel>
                </p:column>

如果要指定行:

<p:column headerText="Model" style="width:30%">
                    <p:panel id="test1">
                        <h:outputText value="#{carr.model}" />
                        <p:contextMenu rendered="#{carr.model eq 'SENT'}" for="test1" widgetVar="cMenu">
                            <p:menuitem value="Edit Cell" icon="ui-icon-search"
                                        onclick="product.showCellEditor();return false;" />
                            <p:menuitem value="Hide Menu" icon="ui-icon-close"
                                        onclick="cMenu.hide()" />
                        </p:contextMenu>
                        <p:contextMenu rendered="#{carr.model eq 'WAITING'}" for="test1" widgetVar="cMenu3">

                            <p:menuitem value="Hide Menu" icon="ui-icon-close"
                                        onclick="cMenu3.hide()" />
                        </p:contextMenu>
                    </p:panel>
                </p:column>

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