MailMergeFilters Collection

Represents all the filters to apply to the data source attached to the mail merge or catalog merge publication. The MailMergeFilters object is comprised of MailMergeFilterCriterion objects.
Using the MailMergeFilters object
Use the Add method of the MailMergeFilters object to add a new filter criterion to the query. This example adds a new line to the query string and then applies the combined filter to the data source. This example assumes that a data source is attached to the active publication.
Sub FilterDataSource()
With ActiveDocument.MailMerge.DataSource
.Filters.Add Column:="Region", _
Comparison:=msoFilterComparisonIsBlank, _
Conjunction:=msoFilterConjunctionAnd
.ApplyFilter
End With
End Sub
Use the Item method to access an individual filter criterion. This example loops through all the filter criterion and if it finds one with a value of "Region", changes it to remove from the mail merge all records that are not equal to "WA". This example assumes that a data source is attached to the active publication.
Sub SetQueryCriterion()
Dim intItem As Integer
With ActiveDocument.MailMerge.DataSource.Filters
For intItem = 1 To .Count
With .Item(intItem)
If .Column = "Region" Then
.Comparison = msoFilterComparisonNotEqual
.CompareTo = "WA"
If .Conjunction = "Or" Then .Conjunction = "And"
End If
End With
Next
End With
End Sub