You can use this class to compare field values between two documents. I use this in an application where I need
to update existing documents with data retrieved from an XML file. From the XML file I create temporary documents and then compare the temporary documents with their equivalent live document. I need to update fields that have changed. The usage example is:
Dim udd As New compareFieldValues Forall fields In doc.Items Set it1 = doc.GetFirstItem(fields.Name) Set it2 = srchdoc.GetFirstItem(fields.Name) If udd.updateField(it1, it2) Then it1.CopyItemToDocument srchdoc, fields.Name End If End Forall Code: Class compareFieldValues Private h1 As String Private h2 As String Sub New End Sub Sub Delete End Sub Public Function updateField(item1 As NotesItem, item2 As NotesItem) As Integer updateField = False If processField(item1.Name) Then 'some fields should not be processed 'get a hashed representation of the field value h1 = hashItem(item1.Values) h2 = hashItem(item2.Values) If h1 <> "" Then 'the new document must have a value in the field, if not ignore it. If Strcompare(h1, h2, 5) <> 0 Then 'if they are different then update them updateField = True End If End If 'h1 <> "" End If End Function Private Function hashItem (tmpStr As Variant) As String Dim tmp As Variant 'produce a hashed representation of the field value tmp = Evaluate(|@Password ("| + tmpStr(0) + |")|) hashItem = tmp(0) End Function Function processField (fieldname As String) As Integer processField = True Select Case fieldname Case "UNID", "Attachments", "Form" : processField = False End Select End Function End Class
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