Examples: MarkAllRead method (NotesViewEntryCollection - LotusScript®)
This agent displays the number of unread documents in a view, marks them all as read, then displays the new number of unread documents in the view.
Sub Initialize
Dim session As New NotesSession
Dim db As NotesDatabase
Dim view As NotesView
Dim vec As NotesViewEntryCollection
Set db = session.CurrentDatabase
Set view = db.GetView("All")
view.AutoUpdate = False
Set vec = view.GetAllUnreadEntries()
Messagebox vec.Count,, "Original unread documents"
Call vec.MarkAllRead()
Set vec = view.GetAllUnreadEntries()
Messagebox vec.Count,, "Unread documents after MarkAllRead"
End Sub