If I understood your question correctly, in your Event overview page you want to show the associated Tags as well.
If so I suggest that you use:
- A Datagrid to display the Events
- A Dataview, with datasource “Listen to widget”, and select the datagrid of Events
- A 2nd Datagrid inside the Dataview, with datasource “Association” to display the Tags associated to the Events.
Here a screenshot on how to do it: