public event EventHandler<PasswordRequiredEventArgs> PasswordRequired

Public Event PasswordRequired As EventHandler(Of PasswordRequiredEventArgs)

public:
 event EventHandler<PasswordRequiredEventArgs^>^ PasswordRequired {
	void add (EventHandler<PasswordRequiredEventArgs^>^ value);
	void remove (EventHandler<PasswordRequiredEventArgs^>^ value);
}

member PasswordRequired : IEvent<EventHandler<PasswordRequiredEventArgs>,
    PasswordRequiredEventArgs>

string indexFolder = @"c:\MyIndex\";
string documentsFolder = @"c:\MyDocuments\";

// Creating an index
Index index = new Index(indexFolder);

// Subscribing to the event
index.Events.PasswordRequired += (sender, args) =>
{
    if (args.DocumentFullPath.EndsWith("ProtectedDocument.pdf", StringComparison.InvariantCultureIgnoreCase))
    {
        args.Password = "123456";
    }
};

// Indexing documents from the specified folder
index.Add(documentsFolder);