<rich:extendedDataTable> with custom DataModel --> group by

[magix]

Hi,

I tried to use the <rich:extendedDataTable> with a custom DataModel (it extends ExtendedDataModel) which loads only a small part of data from the database.
But if I use this custom data model, the group by functionality of <rich:extendedDataTable> does not work correctly any more.

So my questions are:
1) How can I hide the context-menu-item "Group by this column" from the context-menu (I think that should be the easiest solution) ?
2) What's the correct approach to load only needed data from a database with <rich:extendedDataTable> ?
3) I wanted to use the attribute "onRowMouseOver" and "onRowMouseOut" on rich:extendeddataTable to highlight rows, but if I do so the context-menu does not respond to mouse-clicks any more.

Thx
Matthias

[ftirapelle]

I have the same problem too? Any ideas?

[ilya_shaikovsky]

1)2) about turning off. https://jira.jboss.org/jira/browse/RF-6016

You using correct approach but in order to work correctly with sorting/filtering/grouping you should also implement interface modify as shown at demo for rich:dataTable.

3)Need more info (code snippets)

[magix]

I thougth of overriding the default renderer.
But how can I do this?

Are these steps sufficient?
1) Override default renderer for extendedDataTable (org.richfaces.renderkit.html.ExtendedDataTableRenderer)
2) create facelets-taglib

Are there any tutorials about how to override a renderer for richfaces / facelets?

Matthias