To explain my problem a little bit more:
The DataTable is built from a database. To avoid unnecessary transactions, I want to minimize the access to the database. The SortableDataprovider's size() and iterator() methods are called every time I display the panel by klicking on his AjaxTabbedPanels's link. So I place a special link on the page that means "now update the content of all panels in my AjaxTabbedPanel panels. But not all of the Panels in My AjaxTabbedPanel may be chosen by the user so I do not need to reload all their contents from database unless the panel is re-displayed. Is there any event/method I can catch/override that is called before a Panel is re-displayed? The beforeRender method doesn't the trick, because the size() and iteraotr() methods of the Panels's DataTables are called before. Stefan Lindner
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