CREATING UPDATABLE RECORDSETS FROM MULTIPLE TABLES

I am Trying to create a cancel order form. I want to display
fields, InvoiceID,Date,Cancel From OrderHdr And QtyOnOrder(Calculated From
OrderDtls. QtyOrdered-QtyShipped-QtyCanceled). How can i display this in
datasheet form and it should be updatable so user could select which orders to
cancel(by toggling Cancel Field)