The line of code:

_daaHBM.FetchEntity(pbe, (IPrefetchPath2)pbe.ConstructFilterForUCFnameLnameEmailAddressBrokerCode());

The error:

Unable to cast object of type 'SD.LLBLGen.Pro.ORMSupportClasses.PredicateExpression' to type 'SD.LLBLGen.Pro.ORMSupportClasses.IPrefetchPath2'.

I have a unique constraint on the database table on the FName, LName, EmailAddress and BrokerCode columns. All 4 values get populated in the instance of the entity (pbe).

This is probably something really stupid that I'm overlooking.

Any help would be appreciated.

Wayne E. Pfeffer

Yes, you are casting to the wrong type (IPrefetchPath2), it should be IPredicateExpression try this:

_daaHBM.FetchEntity(pbe, (IPredicateExpression)pbe.ConstructFilterForUCFnameLnameEmailAddressBrokerCode());