>Hi,
>
>I want my BO to clear out some of its values depending on a flag that is set by the user. I guess I need to do this in a HookPreSave() method so I tried the following:
>
>In my client.partial.cs I added this (Client is my BO)
>
>

        protected virtual bool HookPreSaveEntity(EntityType currentEntity)
>        {
>
>        }

>
>but I get an error:
>
>'SamaanSystems.IAS.Business.Client.HookPreSaveEntity(EntityType)': not all code paths return a value
>
>What does this mean and how do I achieve my goal?

It just means you didn't finish this method yet. You have said it should return a bool value and you are not returning it. If you want to come back to it later and don't want the error then just put a line in the method to return either true or false.
Tim