Invalid expression format 'FieldExpression'

[zraffaele]

Hi,
i add a customoperator, the sample class FreeTextOperator, i register it in the startup class and when in the Filter querystring add this operator for example 'Filter=name#=raff' i have this error
Thanks

[alirezanet]

Hi @zraffaele,
Can you provide a bit more details? or it would be great if you can add a reproducible example.
name#=sometext according to FreeTextOperator in the docs should work fine.

[zraffaele]

I prepare a reproducible project, but i need a couple of days