If you want to connect a Data Grid over Association, you have to set your DataGrid in another Listview or Dataview.
It is only possible to see associations, if there is a data context.
Example: I have a Dataview with an Email Page Parameter.
In this Dataview I can load a data grid with Attachments because I have an association between Email and Attachment.
The domain model is not visible in your screenshot. Are you sure you have associations set on Datesearch? And not association to Datesearch but association from Datesearch. Edit your original post with your domain model for a more exact answer.