At work I have a use case where the displayed table in the browser contains few 
columns than the table they want to export.

Is there any way to use the Export facility within displaytag but not render 
the full table?

In order to export does the browser have to render the table?

When I view the page which contains my search results my action calls the dao 
and it brings back a smaller number of columns for each record. Then I want to 
click on the export link which will go back around call the dao but this time 
bring back all columns so I can export them.

Is it necessary then to have rendered the new "wider" table to the browser in 
order to export?


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