Specify the action taken when a referenced record in the foreign key
database is deleted.
Namespace:
BerkeleyDB
Assembly:
libdb_dotnet181 (in libdb_dotnet181.dll) Version: 18.1.32.0
Syntax
C# |
---|
public void SetForeignKeyConstraint( Database ForeignDB, ForeignKeyDeleteAction OnDelete, ForeignKeyNullifyDelegate NullifyFunc ) |
Visual Basic (Declaration) |
---|
Public Sub SetForeignKeyConstraint ( _ ForeignDB As Database, _ OnDelete As ForeignKeyDeleteAction, _ NullifyFunc As ForeignKeyNullifyDelegate _ ) |
Visual C++ |
---|
public: void SetForeignKeyConstraint( Database^ ForeignDB, ForeignKeyDeleteAction OnDelete, ForeignKeyNullifyDelegate^ NullifyFunc ) |
Parameters
- ForeignDB
- Type: BerkeleyDB..::.Database
The foreign key database.
- OnDelete
- Type: BerkeleyDB..::.ForeignKeyDeleteAction
The action taken when a reference record is deleted.
- NullifyFunc
- Type: BerkeleyDB..::.ForeignKeyNullifyDelegate
When OnDelete is NULLIFY, NullifyFunc is used to set the foreign key to null.