IMapperMoveFirst Method

Move to the first record in the mapper. Note that this will throw an InvalidMapperMovement error if the mapper is positioned beyond the first record and is not BiDirectional. Use MoveBOF to position just prior to the first data row.

You should not call MoveFirst prior to calling MoveNext to loop through records in a mapper as this will result in the first record being skipped (unless of course you want to skip the first record). Immediately following a Requery(RequeryHints) the mapper will already be positioned BOF and you can simply loop by calling MoveNext. If you are using a BiDirectional mapper and need to perform subsequent MoveNext loops, call MoveBOF to position just prior to the first data row before starting each subsequent MoveNext.

bool MoveFirst()

Function MoveFirst As Boolean