Dynamic Sheets(Array()) - arrays

Question

I want to select a array of sheets using the Sheets(Array()) method.
The sheets I want to select are named in the cells of my workheet Printlist.
The sheetnames are listed form column D to K.
Not all cells are filled so if I use the folowing function it errors on the rows with blank cells. How can I avoid this error:
This is what the sheet looks like:
And this is the code
Sub PDF_maken()
Dim ws As Worksheet
Dim LR As Long
Dim r As Range
Dim Mypath As String
Dim strarray As String
Set ws = ActiveWorkbook.Worksheets("Printlijst")
LR = ws.Cells(Rows.Count, 1).End(xlUp).Row
For Each r In ws.Range("B20:B20").Cells
If Not IsEmpty("B" & r.Row) Then
Mypath = ws.Range("B" & r.Row).Text
colCheck = 4
Do Until Cells(r.Row, colCheck) = ""
strarray = strarray & IIf(colCheck > 4, ",") & """" & Cells(r.Row, colCheck).Value & """"
colCheck = colCheck + 1
Loop
ActiveWorkbook.Sheets(strarray).Select
ActiveWorkbook.SelectedSheets.ExportAsFixedFormat _
Type:=xlTypePDF, _
Filename:=Mypath & ws.Range("C" & r.Row).Text & ".pdf", _
Quality:=xlQualityStandard, IncludeDocProperties:=True, _
IgnorePrintAreas:=False, OpenAfterPublish:=False
End If
Next r
End Sub

Answer 1

You can use a regular array rather than the Array() function to create the array. Then you can loop through the cells that contains sheet names and only add them if they're not blank. Here's an example.
Sub PDF_maken()
Dim ws As Worksheet
Dim lLastRow As Long
Dim rMap As Range
Dim sPath As String
Dim aSheets() As String
Dim lShCnt As Long
Dim rSh As Range
Set ws = ActiveWorkbook.Worksheets("Printlist")
lLastRow = ws.Cells(ws.Rows.Count, 1).End(xlUp).Row
For Each rMap In ws.Range("B2:B" & lLastRow).Cells
'Make sure there's a path
If Not IsEmpty(rMap.Value) Then
sPath = ws.Range("B" & rMap.Row).Text
're-dimension an array to hold all the sheet names
ReDim aSheets(1 To Application.WorksheetFunction.CountA(rMap.Offset(, 2).Resize(1, 8)))
'reset the counter
lShCnt = 0
'loop through all the cells that might have a sheet name
'and add them to the array
For Each rSh In rMap.Offset(, 2).Resize(1, 8).Cells
If Not IsEmpty(rSh.Value) Then
lShCnt = lShCnt + 1
aSheets(lShCnt) = rSh.Text
End If
Next rSh
ActiveWorkbook.Sheets(aSheets).Select
ActiveSheet.ExportAsFixedFormat xlTypePDF, sPath & rMap.Offset(0, 1).Text & ".pdf"
End If
Next rMap
ws.Select
End Sub
If you get Error 9: Subscript Out of Range there are three things to check:
The first one is that you spelled a sheet name wrong. Make sure there are no spaces or other funny business that makes it look like you have a good sheet name and you don't.
Next, make sure you qualify all of your references back to the workbook level. Depending on where your code is, unqualified references can point to different places. Don't ever use Sheets(). Always use ThisWorkbook.Sheets() or some other workbook reference. That will make sure you're not trying to access a sheet in a workbook that you didn't intend to.
Finally, you can get that error if you pass numbers to Sheets because your sheet names are numbers. Or rather they look like numbers, but they're really text. sheets(array(1234,4567)).select is different than sheets(array("1234","4567")).select. You have to pass strings to Sheets or you'll get that error. Kind of. You can pass numbers, but it will Select the sheets based on their index numbers rather than their names. That's why you have to be extra careful when your sheet names look like numbers.

Answer 2

Do a similar loop,
something like
colCheck=4
do until cells(r.row,colCheck)=""
strArray=strarray & iif(colCheck>4,",","") & cells(r.row,colCheck).value
colCheck=colCheck+1
loop
then you'll get something like a,b,c I've not tested this, so may need some tweaking. I'll revisit in a moment.