Tim,

>I am having problems figuring out deleting entities from a child list with parent. I have tried this using the Order - Order Details objects from the Jump Start.

You shouldn't use RemoveAt() to delete an entity--it's a general-purpose .NET Framework method associated with collections. Instead, you should use the DeleteEntity() method of the business object which deletes the specified entity and removes it from the EntityList for you.

Best Regards,