Adding AutoFilter Criteria one by one - excel

Question

I would like to add AutoFilter Criteria to my excel table in separate Subs.
What I have at the moment looks a little something like this
.AutoFilter Field:=deviceTypeColumnId, Criteria1:=[dScenarioIndependent], Operator:=xlOr, _
Criteria2:=[dSmartphoneDeviceType]
What I would like to have is a method to first filter by Criteria1, and then, in another Sub, add Criteria2 to the existing AutoFilter. To my mind, it should look something like this:
Sub firstSub
.AutoFilter Field:=deviceTypeColumnId, Criteria1:=[dScenarioIndependent]
end sub
Sub secondSub
.AutoFilter mode:=xlAddCriteria, Field:=deviceTypeColumnId, Criteria1:=[dSmartphoneDeviceType]
'I know that mode doesn't exist, but is there anything like that?
end sub
Do you know any way to achieve this?

Answer 1

There isn't, that I know of, a way of "adding on" criteria to a filter which has previously been applied.
I have produced a work-around, which would work for what you are attempting to do. You will just have to add on scenarios to the select case statement, going up to the maximum number of filters which you will want to have.
EDIT: what it does; copy the filtered column to a new worksheet, and remove duplicates on that column. You're then left with the values which have been used to filter the column. Assign the values to an array, and then apply the number of elements of the array as a filter on the column, whilst including the new value you wish to filter on.
EDIT 2: added in a function to find the last row for when a table is already filtered (we want the last row, not the last visible row).
Option Explicit
Sub add_filter()
Dim wb As Workbook, ws As Worksheet, new_ws As Worksheet
Dim arrCriteria() As Variant, strCriteria As String
Dim num_elements As Integer
Dim lrow As Long, new_lrow As Long
Set wb = ThisWorkbook
Set ws = wb.Sheets("data")
Application.ScreenUpdating = False
lrow = ws.Cells(Rows.Count, 1).End(xlUp).Row
ws.Range("A1:A" & lrow).Copy 'Copy column which you intend to add a filter to
Sheets.Add().Name = "filter_data"
Set new_ws = wb.Sheets("filter_data")
With new_ws
.Range("A1").PasteSpecial xlPasteValues
.Range("$A$1:$A$" & Cells(Rows.Count, 1).End(xlUp).Row).RemoveDuplicates _
Columns:=1, Header:=xlYes 'Shows what has been added to filter
new_lrow = Cells(Rows.Count, 1).End(xlUp).Row
If new_lrow = 2 Then
strCriteria = .Range("A2").Value 'If only 1 element then assign to string
Else
arrCriteria = .Range("A2:A" & Cells(Rows.Count, 1).End(xlUp).Row) 'If more than 1 element make array
End If
Application.DisplayAlerts = False
.Delete
Application.DisplayAlerts = True
End With
If new_lrow = 2 Then
num_elements = 1
Else
num_elements = UBound(arrCriteria, 1) 'Establish number elements in array
End If
lrow = last_row
Select Case num_elements
Case 1
ws.Range("$A$1:$A$" & lrow).AutoFilter 1, _
Array(strCriteria, "New Filter Value"), Operator:=xlFilterValues
Case 2
ws.Range("$A$1:$A$" & lrow).AutoFilter 1, _
Array(arrCriteria(1, 1), arrCriteria(2, 1), _
"New Filter Value"), Operator:=xlFilterValues
Case 3
ws.Range("$A$1:$A$" & lrow).AutoFilter 1, _
Array(arrCriteria(1, 1), arrCriteria(2, 1), _
arrCriteria(3, 1), "New Filter Value"), Operator:=xlFilterValues
End Select
Application.ScreenUpdating = True
End Sub
Function:
Function last_row() As Long
Dim rCol As Range
Dim lRow As Long
Set rCol = Intersect(ActiveSheet.UsedRange, Columns("A"))
lRow = rCol.Row + rCol.Rows.Count - 1
Do While Len(Range("A" & lRow).Value) = 0
lRow = lRow - 1
Loop
last_row = lRow
End Function
Hope this helps.