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https://issues.jboss.org/browse/RF-11382?page=com.atlassian.jira.plugin.s...
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Frederick Kämpfer commented on RF-11382:
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Wrapping it in a h:panelGrid/panelGroup (with rendered=false) does not make a difference,
the value attribute is still evaluated. However, if you set the parent form's render
attribute to false it seems to work. However that's not always feasible.
My workaround currently is to return an empty collection, if the table's parent
togglePanel is not rendered.
Datatable and ExtendedDatatable evaluate value attribute even if
rendered=false
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Key: RF-11382
URL:
https://issues.jboss.org/browse/RF-11382
Project: RichFaces
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: component-tables
Affects Versions: 4.0.0.Final, 4.1.0.Milestone2
Environment: Fedora 15, Glassfish 3.1.1, CDI (Weld)
Reporter: Frederick Kämpfer
Assignee: Zuzka Krejčová
Fix For: 4.2.0.Tracking
In Richfaces 4 both datatable and extendedDatatable evaluate the value attribute even
when rendered is set to false, even though it is not necessary. This makes it hard to
achieve performance by trimming parts of the view tree. The built-in h:dataTable behaves
correctly in that case.
To reproduce simply try this snipplet:
{code:xml}
<h:form>
<rich:dataTable value="#{myBean.property}"
rendered="false">
</rich:dataTable>
</h:form>
{code}
Side note: The reason I'm posting this is, that i want to embed a rich:dataTable in a
ajax loaded rich:togglePanelItem which is loaded on demand. Probably fixing the
"render" problem will also make the dataTable lazy-loadable when switching to
the corresponding togglePanelItem.
I hope this is no duplicate, I only found RichFaces 3 issues mentioning this problem.
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