Fetch XML Using a Field Value

Question

Can Fetch-XML for a sub-grid view be written to include a field value on the record?

I have a custom entity with a lookup to Account.
I would like to have a sub-grid of Cases related to that Account; the grid would show Cases related to the Account related to this custom entity instead of Cases related to the custom entity.

Answer 1

Yes is possible, but is an unsupported customization.

You can find an example here: Filter Sub-Grid Dynamics CRM 2011 Rollup 12 (Polaris)

Pay attention to the rollup version of your crm environment.