CODEWITHSUNDEEP
jsf-2primefacesdatatable
Rodrigo Sasaki
Rodrigo Sasaki

Reputation: 7226

EL on DataTable Footer not showing

I'm working with a DataTable, and I'm having some trouble displaying a value from an EL in the footer. I have made a simplified version of my xhtml that still reproduces the error.

If I do the p:dataTable like this it all works:

<p:dataTable value="#{myMB.items}" var="item">
    <p:column headerText="Value" footerText="Value">
        <h:outputText value="#{item.value}">
            <f:convertNumber pattern="###,##0.00"/>
        </h:outputText>
    </p:column>
</p:dataTable>

I get this as a result:

Static Footer

The footer shows just fine. And then I try it with EL, changing the column definition like this:

<p:column headerText="Value" footerText="#{3 + 11}">
    <h:outputText value="#{item.value}">
        <f:convertNumber pattern="###,##0.00"/>
    </h:outputText>
</p:column>

And it evaluates my expression, I get this as a result:

Simple EL footer

It shows the correct value 14 in the footer. But when I try to use a value from my model, it doesn't show. See the example:

Code:

<p:column headerText="Value" footerText="#{item.value}">
    <h:outputText value="#{item.value}">
        <f:convertNumber pattern="###,##0.00"/>
    </h:outputText>
</p:column>

Output:

Model EL Footer

And I have tried to do the footer in different ways. Not a single attempt worked.

Is there a correct way to do this? In the showcase it seems to work just fine.

I am using PrimeFaces 3.3.1

Upvotes: 0

Views: 612

Answers (1)

Rodrigo Sasaki
Rodrigo Sasaki

Reputation: 7226

The problem was lack of attention.

I failed to realize that I have multiple column values for a single footer. And since JSF can't decide on a single value, it shows nothing.

Shortly after I posted this the answer came to me. I tried to define a single value on my ManagedBean to use as footer, and it work just fine.

Again, there's nothing wrong with JSF and/or PrimeFaces, it was just lack of logical thinking from my part.

It works on the showcase, because it shows subtables that actually do have a footer for each value.

Upvotes: 1

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