p:column rendered attribute does not seem to work with p:dataTable var

Asked 7/6, 2013 at 11:12 Answered 19/11, 2018 at 18:28

Solved jsf primefaces datatable tablecolumn conditional-rendering

I have written a code like:

<p:column headerText="Edit" width="40" rendered="#{(leaveDetails.strLeaveStatus == 'Canceled') or (leaveDetails.strLeaveStatus == 'Availed')}">
    <p:commandLink actionListener="#{userLeaveBean.editAppliedLeave}" title="Edit" disabled="true" process="@this" update="leaveDataTable" immediate="false">
        <h:graphicImage url="resources/images/edit.JPG"/>
            <f:attribute name="userId" value="#{employee.name}"/>
            <f:attribute name="editFirstHalf" value="#{leaveDetails.strStartTiming}"/>
            <f:attribute name="editSecondHalf" value="#{leaveDetails.strEndTiming}"/>
            <f:attribute name="editFrom" value="#{leaveDetails.dtLeaveFromDate}"/>
            <f:attribute name="editTo" value="#{leaveDetails.dtLeaveToDate}"/>
            <f:attribute name="leaveId" value="#{leaveDetails.strLeaveId}"/>
    </p:commandLink>
</p:column>

But the rendered attribute is not working for the condition. How can I use the logical operator to make the condition work?Using PrimeFaces 3.4.2

Copper answered 7/6, 2013 at 11:12 Comment(0)

-2

The best way I used to resolve my problem with the help of GOD BalusC is:

<p:column headerText="Edit" width="40">
    <p:commandLink actionListener="#{userLeaveBean.editAppliedLeave}" title="Edit" process="@this" update="leaveDataTable" 
        immediate="false" disabled="#{(leaveDetails.strLeaveStatus == 'Canceled') or (leaveDetails.strLeaveStatus == 'Availed')}">
        <h:graphicImage url="resources/images/edit.JPG"/>
        <f:attribute name="userId" value="#{employee.name}"/>
        <f:attribute name="editFirstHalf" value="#{leaveDetails.strStartTiming}"/>
        <f:attribute name="editSecondHalf" value="#{leaveDetails.strEndTiming}"/>
        <f:attribute name="editFrom" value="#{leaveDetails.dtLeaveFromDate}"/>
        <f:attribute name="editTo" value="#{leaveDetails.dtLeaveToDate}"/>
        <f:attribute name="leaveId" value="#{leaveDetails.strLeaveId}"/>
    </p:commandLink>
</p:column>

and it works as smooth as butter!

Copper answered 7/6, 2013 at 11:56 Comment(1)

Note that your initial question isn't formulated as such. You did nowhere state the concrete functional requirement as in "I need to disable the command link on condition X". In the future questions, you'd better do so instead of basically dumping a bunch of lines of wrong code (wrong in such way that the concrete functional requirement isn't immediately obvious from it) and merely saying "It does not work". – Hockett 7/6, 2013 at 12:18

You can't conditionally render a whole column on a per-row basis. This makes logically no utter sense. You can only conditionally render it on a per-table basis. The <p:column rendered> cannot take a condition based on properties of the iterated row. It can only take a condition based on properties of the parent bean.

If you intend to conditionally hide only the cell of the currently iterated row, then just move the rendered attribute from <p:column> to <p:commandLink> or at least a component which wraps the whole <p:column> content, such as <h:panelGroup>.

Or if you really intend to conditionally hide a whole column, then move the conditions used in rendered attribute of <p:column> to the #{userLeaveBean} parent bean.

Hockett answered 7/6, 2013 at 11:18 Comment(2)

I want to do something like this: If the value for leaveDetails.strLeaveStatus is 'Canceled' or 'Availed', the <p:commandLink> should be disabled otherwise <p:commandLink> should be enabled.Dont want to hide the column on any condition. – Copper 7/6, 2013 at 11:34

Then just put the condition in the disabled attribute of <p:commandLink>? Note that your current code attempt with <p:column rendered> is clearly trying to hide the column on a condition. – Hockett 7/6, 2013 at 11:38

-1

first import

<html xmlns:ui="http://java.sun.com/jsf/facelets">

and add a ui fragment inside the column

<p:column headerText="Edit" width="40">
<ui:fragment rendered="#{(leaveDetails.strLeaveStatus == 'Canceled') or (leaveDetails.strLeaveStatus == 'Availed')}">
    <p:commandLink actionListener="#{userLeaveBean.editAppliedLeave}" title="Edit" disabled="true" process="@this" update="leaveDataTable" immediate="false">
        <h:graphicImage url="resources/images/edit.JPG"/>
            <f:attribute name="userId" value="#{employee.name}"/>
            <f:attribute name="editFirstHalf" value="#{leaveDetails.strStartTiming}"/>
            <f:attribute name="editSecondHalf" value="#{leaveDetails.strEndTiming}"/>
            <f:attribute name="editFrom" value="#{leaveDetails.dtLeaveFromDate}"/>
            <f:attribute name="editTo" value="#{leaveDetails.dtLeaveToDate}"/>
            <f:attribute name="leaveId" value="#{leaveDetails.strLeaveId}"/>
    </p:commandLink>
</ui:fragment> 
</p:column>

Hillery answered 19/11, 2018 at 18:28 Comment(2)

How is this an answer to the question? There is no explanation at all. – Vacuum 19/11, 2018 at 18:44

@EduardoSalgado Hi there, welcome to StackOverflow. Could you add a description of the significance of the import statement and ui fragment? That would really help readers understand why this may work. Afterwards, please take your time to familiarise yourself with the site by taking the tour. Hope to see you around :-) – Unfeeling 19/11, 2018 at 18:49

-2

The best way I used to resolve my problem with the help of GOD BalusC is:

<p:column headerText="Edit" width="40">
    <p:commandLink actionListener="#{userLeaveBean.editAppliedLeave}" title="Edit" process="@this" update="leaveDataTable" 
        immediate="false" disabled="#{(leaveDetails.strLeaveStatus == 'Canceled') or (leaveDetails.strLeaveStatus == 'Availed')}">
        <h:graphicImage url="resources/images/edit.JPG"/>
        <f:attribute name="userId" value="#{employee.name}"/>
        <f:attribute name="editFirstHalf" value="#{leaveDetails.strStartTiming}"/>
        <f:attribute name="editSecondHalf" value="#{leaveDetails.strEndTiming}"/>
        <f:attribute name="editFrom" value="#{leaveDetails.dtLeaveFromDate}"/>
        <f:attribute name="editTo" value="#{leaveDetails.dtLeaveToDate}"/>
        <f:attribute name="leaveId" value="#{leaveDetails.strLeaveId}"/>
    </p:commandLink>
</p:column>

and it works as smooth as butter!

Copper answered 7/6, 2013 at 11:56 Comment(1)

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