' For each document in a Notes database, use a Notes macro to
' compute the average for a list of numeric entries in the
' NumberList field. Evaluate returns a Variant, and Notes
' macros return an array. In this case, the array contains only
' 1 element (element 0). For more info, see the Notes
' documentation.
Sub Click(Source As Button)
' The macro text must be known at compile time.
Const NotesMacro$ = "@Sum(NumberList) / @Elements(NumberList)"
Dim result As Variant, j As Integer
Dim db As New NotesDatabase("", "MYSALES.NSF")
Dim dc As NotesDocumentCollection
Dim doc As NotesDocument
Set dc = db.AllDocuments
For j% = 1 To dc.Count
Set doc = dc.GetNthDocument(j%)
result = Evaluate(NotesMacro$, doc)
MessageBox("Average is " & result(0))
Next
End Sub