Returns a MailMergeDataSource object that refers to the data source attached to a mail merge main document. Read-only.
Example
This example displays the name of the data source attached to the active document.
If ActiveDocument.MailMerge.DataSource.Name <> "" Then _
MsgBox ActiveDocument.MailMerge.DataSource.Name
This example displays the next record from the data source attached to Main.doc.
ActiveDocument.ActiveWindow.View.ShowFieldCodes = False
With Documents("Main.doc").MailMerge
.ViewMailMergeFieldCodes = False
.DataSource.ActiveRecord = wdNextRecord
End With