Welcome to the #dominoforever Product Ideas Forum! The place where you can submit product ideas and enhancement request. We encourage you to participate by voting on, commenting on, and creating new ideas. All new ideas will be evaluated by HCL Product Management & Engineering teams, and the next steps will be communicated. While not all submitted ideas will be executed upon, community feedback will play a key role in influencing which ideas are and when they will be implemented.
For more information and upcoming events around #dominoforever, please visit our Destination Domino Page
It is much worse that NotesDatabase class does not have an IsExist method.
Well, the appropriate functions exists in NotesDatabase:
NotesDatabase.IsOpen and Notesdatabase.Close()
But I guess you want to check, if somebody else is using the database (isOpen), or block it from usage (Close)? This can only be done using administrative console commands.