Referenced dictionary definitions are stored in the controls property stream and are read into memory when the control is loaded. User defined . Definitions are stored in local memory for fast access. Data binding is available on defined fields. File bound .
Data binding is available for any key or key segment.
Even SQL queries and find methods can be performed using these pseudo fields. Unbound file . Reading and writing of records is performed as a byte stream. Access to records is done via user defined types. All Btrieve key based searches are supported.