CRecordset::CanUpdate
Determines whether the recordset can be updated.
BOOL CanUpdate( ) const;
Return Value
Nonzero if the recordset can be updated; otherwise 0.
Remarks
A recordset might be read-only if the underlying data source is read-only or if you specified CRecordset::readOnly in the dwOptions parameter when you opened the recordset.
Requirements
Header: afxdb.h