Skip some columns in datatable

priestex Feb 2, 2009 3:05 PM

Hi,

I have a data table that iterates over a collection using Columns to render its content dynamically.
I want to skip showing the first object in the collection in the datatable as a column. Removing the first object from the collection so that it only has objects I do want to show in the table is not an option.
Is there any way of doing that?

Heres what I am doing currently:

<rich:dataTable value="#{reportTableView.rowList}" var="row">
 <rich:columns value="#{reportTableView.columns}" var="column" index="ind">
 <c:if test="#{ind > 0}">
 <h:outputText value="#{row.cellList[ind].displayValue}" />
 </c:if>
 </rich:columns>
</rich:dataTable>

But using the if to check if its the first column doesnt work because the table still shows a blank column. Is there some way to hide the first column?

Thanks

1. Re: Skip some columns in datatable

sergeysmirnov Feb 2, 2009 3:26 PM (in response to priestex)

you cannot use c:if here because it evaluates the expression much before than ind is defined.

read this: http://www.ilikespam.com/blog/c:foreach-vs-ui:repeat-in-facelets
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2. Re: Skip some columns in datatable

priestex Feb 2, 2009 3:29 PM (in response to priestex)

Go that, thanks for the clarification.
So is there some other way I can achieve what I want?
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3. Re: Skip some columns in datatable

priestex Feb 2, 2009 3:45 PM (in response to priestex)

I got it to work by using the rendered attribute in the Columns:

<rich:dataTable value="#{reportTableView.rowList}" var="row" rendered="#{ind > 0}">
 <rich:columns value="#{reportTableView.columns}" var="column" index="ind">
 <c:if test="#{ind > 0}">
 <h:outputText value="#{row.cellList[ind].displayValue}" />
 </c:if>
 </rich:columns>
</rich:dataTable>

4. Re: Skip some columns in datatable

priestex Feb 2, 2009 3:47 PM (in response to priestex)

Sorry about the code in the previous post. Heres the correct one:

<rich:dataTable value="#{reportTableView.rowList}" var="row">
 <rich:columns value="#{reportTableView.columns}" var="column" index="ind" rendered="#{ind > 0}">
 <c:if test="#{ind > 0}">
 <h:outputText value="#{row.cellList[ind].displayValue}" />
 </c:if>
 </rich:columns>
</rich:dataTable>

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