Craig,

>Where should I place this call - in the Constructor?
>and do I need to do anything special for the save operation - I am using the mmButtonSave class and the parent info is saved but the child info isn't.
>
>I have the following in the constructor:
>
>this.oClient = (Client)this.RegisterPrimaryBizObj(new Client());
>this.oPerson = (Person)this.RegisterBizObj(new Person());
>this.oClient.RegisterChildBizObj(this.oPerson);
>InitializeComponent();

Yes, you can put this code in the form's constructor. Make sure AutoSaveOnParentSaved is set to true in ABusinessObject (if you want it to apply to all child objects) or in the child object's constructor. For details, see the MM .NET Dev Guide topic "AutoSaveOnParentSaved: Cascading Saves".

Best Regards,