Wrong number of arguments or invalid property assignment - vba

Question

I'm having trouble debugging Error 450 in my code. With 17 ranges, the code is running fine, but when more ranges are added, it shows Error 450 Wrong number of arguments or invalid property assignment. Please have a look at the code. The first line is highlighted and 'Union' also when the error is displayed.
Sub Set_PrintArea()
Dim rng1 As Range
Dim rng2 As Range
Dim rng3 As Range
Dim rng4 As Range
Dim rng5 As Range
Dim rng6 As Range
Dim rng7 As Range
Dim rng8 As Range
Dim rng9 As Range
Dim rng10 As Range
Dim rng11 As Range
Dim rng12 As Range
Dim rng13 As Range
Dim rng14 As Range
Dim rng15 As Range
Dim rng16 As Range
Dim rng17 As Range
Dim rng18 As Range
Dim rng19 As Range
Dim rng20 As Range
Dim rng21 As Range
Dim rng22 As Range
Dim rng23 As Range
Dim rng24 As Range
Dim rng25 As Range
Dim rng26 As Range
Dim rng27 As Range
Dim rng28 As Range
Dim rng29 As Range
Dim rng30 As Range
Dim rng31 As Range
Dim rng32 As Range
Dim rng33 As Range
Dim rng34 As Range
Dim rng35 As Range
With Sheets("Performance")
Set rng1 = .Range("$A$1:$U$13")
Set rng2 = .Range("$B$15:$Z$52")
Set rng3 = .Range("$B$55:$Z$92")
Set rng4 = .Range("$B$95:$Z$132")
Set rng5 = .Range("$B$135:$Z$172")
Set rng6 = .Range("$B$175:$Z$212")
Set rng7 = .Range("$B$215:$Z$252")
Set rng8 = .Range("$B$255:$Z$292")
Set rng9 = .Range("$B$295:$Z$332")
Set rng10 = .Range("$B$335:$Z$372")
Set rng11 = .Range("$B$374:$Z$407")
Set rng12 = .Range("$B$410:$Z$443")
Set rng13 = .Range("$B$446:$Z$479")
Set rng14 = .Range("$B$482:$Z$515")
Set rng15 = .Range("$B$518:$Z$551")
Set rng16 = .Range("$B$554:$Z$587")
Set rng17 = .Range("$B$590:$S$610")
Set rng18 = .Range("$B$613:$V$642")
Set rng19 = .Range("$B$650:$U$662")
Set rng20 = .Range("$B$664:$Z$701")
Set rng21 = .Range("$B$704:$Z$741")
Set rng22 = .Range("$B$744:$Z$781")
Set rng23 = .Range("$B$784:$Z$821")
Set rng24 = .Range("$B$824:$Z$861")
Set rng25 = .Range("$B$864:$Z$901")
Set rng26 = .Range("$B$904:$Z$941")
Set rng27 = .Range("$B$944:$Z$981")
Set rng28 = .Range("$B$984:$Z$1021")
Set rng29 = .Range("$B$1023:$AD$1066")
Set rng30 = .Range("$B$1069:$AD$1112")
Set rng31 = .Range("$B$1115:$AD$1158")
Set rng32 = .Range("$B$1161:$AD$1204")
Set rng33 = .Range("$B$1207:$AD$1250")
Set rng34 = .Range("$B$1253:$AD$1296")
Set rng35 = .Range("$B$1299:$S$1323")
With .PageSetup
.PrintArea = Union(rng1, rng2, rng3, rng4, rng5, rng6, rng7, rng8, rng9, rng10, rng11, rng12, rng13, rng14, rng15, rng16, rng17, rng18, rng19, rng20, rng21, rng22, rng23, rng24, rng25, rng26, rng27, rng28, rng29, rng30, rng31, rng32, rng33, rng34, rng35).Address
.Orientation = xlLandscape
.Zoom = False
.FitToPagesWide = 1
.FitToPagesTall = 1
End With
.PrintPreview
End With
End Sub
Thanks in advance.

Answer 1

According to msdn, http://msdn.microsoft.com/en-us/library/office/ff834621(v=office.14).aspx
Union can only accept 30 parameters
Syntax
expression .Union(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, Arg9, Arg10, Arg11, Arg12, Arg13, Arg14, Arg15, Arg16, Arg17, Arg18, Arg19, Arg20, Arg21, Arg22, Arg23, Arg24, Arg25, Arg26, Arg27, Arg28, Arg29, Arg30)
To overcome this, you can split that 35 ranges into 2 sets.
e.g.
union1 = union(rng1, rng2, ... , rng30)
union2 = union(rng31, rng32, ... , rng35)
unionFinal = union(union1, union2)

Answer 2

You have hit two limits in Excel: maximum parameters for Union (as others have said) and the string length limit for PrintArea of 255 characters.
Your print area address is < 255 long if you don't use absolute addressing
Try this
Sub Demo()
ReDim rng(1 To 35)
Dim rngPrintArea As Range
Dim i As Long
With Sheets("Performance")
Set rng(1) = .Range("$A$1:$U$13")
Set rng(2) = .Range("$B$15:$Z$52")
Set rng(3) = .Range("$B$55:$Z$92")
Set rng(4) = .Range("$B$95:$Z$132")
Set rng(5) = .Range("$B$135:$Z$172")
Set rng(6) = .Range("$B$175:$Z$212")
Set rng(7) = .Range("$B$215:$Z$252")
Set rng(8) = .Range("$B$255:$Z$292")
Set rng(9) = .Range("$B$295:$Z$332")
Set rng(10) = .Range("$B$335:$Z$372")
Set rng(11) = .Range("$B$374:$Z$407")
Set rng(12) = .Range("$B$410:$Z$443")
Set rng(13) = .Range("$B$446:$Z$479")
Set rng(14) = .Range("$B$482:$Z$515")
Set rng(15) = .Range("$B$518:$Z$551")
Set rng(16) = .Range("$B$554:$Z$587")
Set rng(17) = .Range("$B$590:$S$610")
Set rng(18) = .Range("$B$613:$V$642")
Set rng(19) = .Range("$B$650:$U$662")
Set rng(20) = .Range("$B$664:$Z$701")
Set rng(21) = .Range("$B$701:$Z$741")
Set rng(22) = .Range("$B$744:$Z$781")
Set rng(23) = .Range("$B$784:$Z$821")
Set rng(24) = .Range("$B$824:$Z$861")
Set rng(25) = .Range("$B$864:$Z$901")
Set rng(26) = .Range("$B$904:$Z$941")
Set rng(27) = .Range("$B$944:$Z$981")
Set rng(28) = .Range("$B$984:$Z$1021")
Set rng(29) = .Range("$B$1023:$AD$1066")
Set rng(30) = .Range("$B$1069:$AD$1112")
Set rng(31) = .Range("$B$1115:$AD$1158")
Set rng(32) = .Range("$B$1161:$AD$1204")
Set rng(33) = .Range("$B$1207:$AD$1250")
Set rng(34) = .Range("$B$1253:$AD$1296")
Set rng(35) = .Range("$B$1299:$S$1323")
Set rngPrintArea = rng(1)
For i = 2 To 35
Set rngPrintArea = Union(rngPrintArea, rng(i))
Next
With .PageSetup
.PrintArea = rngPrintArea.Address(False, False)
.Orientation = xlLandscape
.Zoom = False
.FitToPagesWide = 1
.FitToPagesTall = 1
End With
End With
End Sub

Answer 3

Shorter...
Sub Set_PrintArea()
Dim rng As Range, x As Long, arr
'add all your ranges here...
arr = Array("$A$1:$U$13", "$B$15:$Z$52", "$B$55:$Z$92", "$B$95:$Z$132")
With Worksheets("Performance")
Set rng = .Range(arr(LBound(arr)))
For x = LBound(arr) + 1 To UBound(arr)
Set rng = Application.Union(rng, .Range(arr(x)))
Next x
With .PageSetup
.PrintArea = rng.Address
.Orientation = xlLandscape
.Zoom = False
.FitToPagesWide = 1
.FitToPagesTall = 1
End With
.PrintPreview
End With
End Sub