Problem with add datasource on form - outerjoin

Hi,

I would like add datasource (table name  MyTable) to the form InventTransferJour and show data from MyTable on grid. I added table, set on MyTable joinSource - InventTransferJour - and LinkType - Outer Join- .

I have to add relation in method MyTable.init() - so there should be relation through InventTransferJour.VoucherId = MyTable.VoucherId.

How should I do it please ? How should the code look like ?

AX 2012 R2