InfoPath Dev

Based on a user's choice I need to set or unset a node as required ''can not be blank''. I want ot do this programmatically using vb.net in Visual Studio. Any ideas? M Kuhn

I am writing a form for provisioning IT account requests. A user fills out an IT account requests and indicated their location in one of 50 offices. Each office has unique set of account authorizers. The forms are submitted to a SharePoint Services library. I need to program OnClick, OnSaveRequest, and OnOpen events that use vb.net to looks up ...