Check whether key appears in the database.Namespace: BerkeleyDB
Assembly: libdb_dotnet52 (in libdb_dotnet52.dll) Version: 188.8.131.52
public bool Exists( DatabaseEntry key )
|Visual Basic (Declaration)|
Public Function Exists ( _ key As DatabaseEntry _ ) As Boolean
public: bool Exists( DatabaseEntry^ key )
- Type: BerkeleyDB..::.DatabaseEntry
The key to search for.
Return ValueTrue if key appears in the database, false otherwise.
If the operation occurs in a transactional database, the operation will be implicitly transaction protected.
|BerkeleyDB..::.NotFoundException||A NotFoundException is thrown if key is not in the database.|
|BerkeleyDB..::.KeyEmptyException||A KeyEmptyException is thrown if the database is a QueueDatabase or RecnoDatabase database and key exists, but was never explicitly created by the application or was later deleted.|