How to get the range of the visible rows after applying an advanced filter in Excel (VBA)
Here is the code that applies an advanced filter to the column A on the Sheet1 worksheet (List range) by using the range of values on the Sheet2 (criteria range):
Range("A1:A100").AdvancedFilter Action:=xlFilterInPlace, CriteriaRange:= _
Sheets("Sheet2").Range("A1:A10"), Unique:=False
After running this code, I need to do something with the rows that are currently visible on the screen.
Currently I use a code like this:
For i = 1 to maxRow
If Not ActiveSheet.Row(i).Hidden then
...do something that I need to do with that rows
EndIf
Next
Is there any simple property that can give me a range of rows visible after applying an advanced filter?
ActiveSheet.Range("A1:A100").Rows.SpecialCells(xlCellTypeVisible)
This yields a Range
object.
Lance's solution will work in the majority of situations.
But if you deal with large/complex spreadsheets you might run into the "SpecialCells Problem". In a nutshell, if the range created causes greater than 8192 non-contiguous areas (and it can happen) then Excel will throw an error when you attempt to access SpecialCells and your code won't run. If your worksheets are complex enough you expect to encounter this problem, then it is recommended you stick with the looping approach.
It's worth noting that this problem is not with the SpecialCells property itself, rather it is with the Range object. This means that anytime that you attempt to obtain a range object that could be very complex you should either employee an error handler, or do as you already have done, which is to cause your program to work on each element of the range (split the range up).
Another possible approach would be to return an array of Range Objects and then loop through the array. I have posted some example code to play around with. However it should be noted that you really should only bother with this if you expect to have the problem described or you just want to feel assured your code is robust. Otherwise it's just needless complexity.
Option Explicit
Public Declare Function GetTickCount Lib "kernel32" () As Long
Public Sub GenerateProblem()
'Run this to set up an example spreadsheet:
Dim row As Long
Excel.Application.EnableEvents = False
Sheet1.AutoFilterMode = False
Sheet1.UsedRange.Delete
For row = 1 To (8192& * 4&) + 1&
If row Mod 3& Then If Int(10& * Rnd) 7& Then Sheet1.Cells(row, 1&).value = "test"
Next
Sheet1.UsedRange.AutoFilter 1&, ""
Excel.Application.EnableEvents = True
MsgBox Sheet1.UsedRange.SpecialCells(xlCellTypeVisible).address
End Sub
Public Sub FixProblem()
'Run this to see various solutions:
Dim ranges() As Excel.Range
Dim index As Long
Dim address As String
Dim startTime As Long
Dim endTime As Long
'Get range array.
ranges = GetVisibleRows
'Do something with individual range objects.
For index = LBound(ranges) To UBound(ranges)
ranges(index).Interior.ColorIndex = Int(56 * Rnd + 1)
Next
'Get total address if you want it:
startTime = GetTickCount
address = RangeArrayAddress(ranges)
endTime = GetTickCount
Debug.Print endTime - startTime, ; 'Outputs time elapsed in milliseconds.
'Small demo of why I used a string builder. Straight concatenation is about
'10 times slower:
startTime = GetTickCount
address = RangeArrayAddress2(ranges)
endTime = GetTickCount
Debug.Print endTime - startTime
End Sub
Public Function GetVisibleRows(Optional ByVal ws As Excel.Worksheet) As Excel.Range()
Const increment As Long = 1000&
Dim max As Long
Dim row As Long
Dim returnVal() As Excel.Range
Dim startRow As Long
Dim index As Long
If ws Is Nothing Then Set ws = Excel.ActiveSheet
max = increment
ReDim returnVal(max) As Excel.Range
For row = ws.UsedRange.row To ws.UsedRange.Rows.Count
If Sheet1.Rows(row).Hidden Then
If startRow 0& Then
Set returnVal(index) = ws.Rows(startRow & ":" & (row - 1&))
index = index + 1&
If index > max Then
'Redimming in large increments is an optimization trick.
max = max + increment
ReDim Preserve returnVal(max) As Excel.Range
End If
startRow = 0&
End If
ElseIf startRow = 0& Then startRow = row
End If
Next
ReDim Preserve returnVal(index - 1&) As Excel.Range
GetVisibleRows = returnVal
End Function
Public Function RangeArrayAddress(ByRef value() As Excel.Range, Optional lowerindexRV As Variant, Optional upperindexRV As Variant) As String
'Parameters left as variants to allow for "IsMissing" values.
'Code uses bytearray string building methods to run faster.
Const incrementChars As Long = 1000&
Const unicodeWidth As Long = 2&
Const comma As Long = 44&
Dim increment As Long
Dim max As Long
Dim index As Long
Dim returnVal() As Byte
Dim address() As Byte
Dim indexRV As Long
Dim char As Long
increment = incrementChars * unicodeWidth 'Double for unicode.
max = increment - 1& 'Offset for array.
ReDim returnVal(max) As Byte
If IsMissing(lowerindexRV) Then lowerindexRV = LBound(value)
If IsMissing(upperindexRV) Then upperindexRV = UBound(value)
For index = lowerindexRV To upperindexRV
address = value(index).address
For char = 0& To UBound(address) Step unicodeWidth
returnVal(indexRV) = address(char)
indexRV = indexRV + unicodeWidth
If indexRV > max Then
max = max + increment
ReDim Preserve returnVal(max) As Byte
End If
Next
returnVal(indexRV) = comma
indexRV = indexRV + unicodeWidth
If indexRV > max Then
max = max + increment
ReDim Preserve returnVal(max) As Byte
End If
Next
ReDim Preserve returnVal(indexRV - 1&) As Byte
RangeArrayAddress = returnVal
End Function
Public Function RangeArrayAddress2(ByRef value() As Excel.Range, Optional lowerIndex As Variant, Optional upperIndex As Variant) As String
'Parameters left as variants to allow for "IsMissing" values.
'Code uses bytearray string building methods to run faster.
Const incrementChars As Long = 1000&
Const unicodeWidth As Long = 2&
Dim increment As Long
Dim max As Long
Dim returnVal As String
Dim index As Long
increment = incrementChars * unicodeWidth 'Double for unicode.
max = increment - 1& 'Offset for array.
If IsMissing(lowerIndex) Then lowerIndex = LBound(value)
If IsMissing(upperIndex) Then upperIndex = UBound(value)
For index = lowerIndex To upperIndex
returnVal = returnVal & (value(index).address & ",")
Next
RangeArrayAddress2 = returnVal
End Function