[jbossseam-issues] [JBoss JIRA] Assigned: (JBSEAM-4323) Allow EL-based StyleClass and Style Attributes to be Reevaluated After the First Row of a Spreadsheet, i.e. Support Conditional Styles on Any Cell

Fri Aug 21 02:08:23 EDT 2009

     [ https://jira.jboss.org/jira/browse/JBSEAM-4323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nicklas Karlsson reassigned JBSEAM-4323:
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    Assignee: Nicklas Karlsson


> Allow EL-based StyleClass and Style Attributes to be Reevaluated After the First Row of a Spreadsheet, i.e. Support Conditional Styles on Any Cell
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBSEAM-4323
>                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4323
>             Project: Seam
>          Issue Type: Feature Request
>          Components: Excel
>    Affects Versions: 2.1.2.GA
>         Environment: Developing on Windows XP.
>            Reporter: Sean Gurevich
>            Assignee: Nicklas Karlsson
>
> Currently, the Seam Excel library caches (maps) the worksheet cell's styles by the cell's UIComponent. Effectively, this leads to the styleClass and style attributes' evaluation to occur only once for the first row of data, then all subsequent rows inherit the styles. I have a need to apply conditional styling to cells in a row where the value expression in a styleClass/style attribute is reevaluated for each row of data, similar in behavior to a typical data iterator in JSF.
> In my discussion with Nicklas Karlsson, he's proposed a solution involving an attribute to disable this caching behavior; however retaining the default behavior for anyone that relies on the performance advantage of the caching.

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