Question

Checking for an empty association

3

Hi, does anybody know how to check to see if an association is empty using an xpath constriant? so retrieve a list of objects where there is no link to an association I am currently trying the below but it gives an error: ExampleModule.Entity1_Entity2 = empty

asked 2020-01-23

Ben Ashley

4 answers

2

Thanks both! this worked great

answered 2020-01-23

Ben Ashley

0

Doesn't work with Studio 10:

[not(LiDATInterface.FileListLink_Machines)]

gives:

Invalid argument types (Object). Function 'not' expects argument types (Boolean)

answered 2024-05-15

Massimo Mucci

Fabian Recktenwald · Accepted Answer · 2020-01-23

E.g.

//System.User

[not(System.UserRoles/System.UserRole)]

Nathan Ruth · Accepted Answer · 2020-01-23

Try:

not(Entity1_Entity2)

Hope this helps!