In my domain layer all domain objects emit events (of type InvalidDomainObjectEventHandler) to indicate invalid state when the IsValid property is called.

On an aspx codebehind, I have to manually wire up the events for the domain object like this:

_purchaseOrder.AmountIsNull += new DomainObject.InvalidDomainObjectEventHandler(HandleDomainObjectEvent);
_purchaseOrder.NoReason += new DomainObject.InvalidDomainObjectEventHandler(HandleDomainObjectEvent);
_purchaseOrder.NoSupplier += new DomainObject.InvalidDomainObjectEventHandler(HandleDomainObjectEvent);
_purchaseOrder.BothNewAndExistingSupplier += new DomainObject.InvalidDomainObjectEventHandler(HandleDomainObjectEvent);

Note that the same method is called in each case since the InvalidDomainobjectEventArgs class contains the message to display.

Is there any way I can write a single statement to wire up all events of type InvalidDomainObjectEventHandler in one go?

Thanks

David