Ideally this information (both the default event and the set of supported events) should be present in both the pdl/javadoc for each tag/component that supports ClientBehaviorHolder. We've got all of the metadata - already use it for component generation. Hopefully not too difficult to generate some doc off of this as well. FWIW, the only standard components that have default events are: - Command components: default event is "action" - EditableValueHolder components: default event is "valueChange" Andy Roger Kitain wrote: