蘭斯的解決方案將在大多數情況下工作。
但是,如果你處理大/複雜的電子表格,你可能會遇到的「SpecialCells Problem」。概括地說,如果創建的範圍將導致超過8192不連續的區域(它可以發生),那麼當您試圖訪問SpecialCells和你的代碼將無法運行Excel將拋出一個錯誤。如果你的工作表很複雜,你會遇到這個問題,那麼建議你堅持使用循環方法。
值得一提的這個問題是不是與SpecialCells屬性本身,而是它與Range對象。這意味着,只要你試圖獲得一個可能非常複雜的範圍對象,你應該僱傭一個錯誤處理程序,或者像你已經完成的那樣做,這會讓你的程序在範圍的每個元素上工作(分割範圍內)。
另一種可能的方法是通過陣列返回範圍對象數組,然後循環。我已經發布了一些示例代碼來玩弄。但是應該注意的是,如果你期望遇到問題描述,或者你只是想確保代碼的健壯性,那麼你真的應該只是爲此而煩惱。否則,這只是不必要的複雜性。
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
謝謝。它工作在Excel 2007中,將檢查Excel 2003中的明天 – 2009-09-02 22:23:06