I would like to use the built in export button on a data grid that’s being populated via an association. Is there a way to do this without using a Java Action?
Choose Database as the data source type for the datagrid
In the entity selection, you'll see the context object at the top of the list of entities
Expand the context object and select the association you want to use
When you build your data source this way, you can use the built in Excel exporter. Choosing data source of Association prevents you from using the built in Excel exporter.
Thanks Mike, That worked! I've also noted that this limitation has been resolved in version Mendix 4.3: http://www.mendix.com/tech-blog/release-announcements/new-goodies-for-mendix-app-platform-users-mendix-business-modeler-4-3-release-today/