Changing a Relationship Precedence in Dynamics AX

by | Updated November 4, 2016 | Development, Dynamics AX

Have you ever been in a scenario where a data source has more than one relationship to a table it is being linked to? I have. It wasn’t a problem until I wanted the second relationship to take priority.

So the real question is, how to specify what relationship should the table use?

relationship-precedence_brandon

 

In my example, on the InventTable I have multiple relationships defined. Please note though:

InventTable.AlcholoManufacturerID_RU == VendTable.AccountNum InventTable.PrimaryVendorId == VendTable.AccountNum

On my form: EcoResProductDetailsExtended, I added VendTable as a data source.

Well, how does AX know which relationship I want take precedence? By default, AX uses the first one. In this case, the AlcoholManufacturer_RU relationship takes precedence.

relationship-precedence_brandon-2

 

To change what relationship takes precedence I overloaded the init() method.

relationship-precendence_brandon-3

 

  1. First, you must tell the data source what relationship you want to use.

2. Second, you must make the relationship the active relationship.

3. Third, you must execute the query.

 

It is important to note, this must all be done before the super(). By following these simple steps, you will set a tables relationship precedence on a data source with more than one defined relationship.

Your init() method should look like the following.

 

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