Showing Filter Criteria on a Printout

Microsoft Excel includes some great tools that help you filter large data tables to include only the information you want displayed. In effect, the filters allow you to "slice and dice" your data until you get just what you want.

When printing out filtered data, you might want to know what slicing and dicing was done to the original data. There are several ways you can go about displaying your filtering criteria. One simple way is to use the advanced filtering capabilities of Excel, which require that you set up a small criteria table for your data. If the criteria table is made part of what you print, then you can see your filtering criteria quite easily.

If you use AutoFilter, then you need to use a different approach. One such approach is detailed at John Walkenbach's site:

http://j-walk.com/ss/excel/usertips/tip044.htm

This solution uses a user-defined function to return any filtering criteria in use in the current column. The function can be used in a cell, in that column, to display the criteria. If you are using advanced filtering, then the macro approach is a bit more complex. The following macros (there are two of them in the listing) will examine what advanced criteria are in play, and then place the criteria in the left portion of the header.

Sub AddFilterCriteria()
    Dim strCriteria As String

    strCriteria = FilterCriteria()
    If strCriteria = "" Then
        strCriteria = "No Filtering Criteria"
    Else
        strCriteria = "Filter Criteria:" & Chr(10) & strCriteria
    End If

'   add Criteria string to Header/Footer
    With ActiveSheet.PageSetup
        .LeftHeader = strCriteria
    End With
End Sub

Function FilterCriteria() As String
    Dim rngCriteria As Range, col As Range, cel As Range
    Dim strCriteria As String, r As Integer, c As Integer
    Const strCriteriaRange As String = "Criteria"

    FilterCriteria = ""

    On Error Resume Next
    'Set Criteria-Range reference
    Set rngCriteria = Range(strCriteriaRange)
    If Err <> 0 Then Exit Function
    On Error GoTo 0

'   Create Criteria String
    c = 0
    For Each col In rngCriteria.Columns
        c = c + 1     ' CriteriaRange Columns
        r = 1         ' CriteriaRange Rows
        For Each cel In col.Cells
            If r = 1 Then
                strCriteria = strCriteria & "Criteria" _
                  & c & " (" & cel.Value & ") = "
            Else
                strCriteria = strCriteria & "'" & cel.Value & "'"
                If IsEmpty(cel.Offset(1, 0)) Then
                    'Add New row Char if not Last Criteria Column
                    If c < rngCriteria.Columns.Count Then
                        strCriteria = strCriteria & Chr(10)
                    End If
                    Exit For
                End If
                strCriteria = strCriteria & "  "
            End If
            r = r + 1
        Next cel    ' next criteria row
    Next col        ' next criteria column

    FilterCriteria = strCriteria
End Function

To use the macro, just run the AddFilterCriteria macro, after you have your advanced filtering set up. The macro reads the criteria table and puts together the criteria into a string that is placed in the left header.