2012-06-18 36 views
4

在使用多個工作簿(從列表中的工作簿複製到主工作表)時,是否有替代方法在VBA中使用ActiveWorkbook和ActiveSheet?當處理需要使用不同工作簿的多個函數時,會發現比知道哪些工作簿處於打開狀態更令人困惑。這是代碼組織的問題嗎?當從一個wb複製到另一個wb時避免意大利麪代碼

目前我認爲我可以通過在每個函數的開頭存儲activeworkbook的名稱並恢復它來進行管理,但它看起來像很多工作,並且可能需要大量的處理時間而沒有太多的結果。

想法?

回答

1

通常,當您通過列表工作您將使用工作簿變量來打開,處理並關閉每本書

我的代碼如下是一個工作簿和整理工作簿目錄的示例(類似於您的列表考試PLE)。來自Collating worksheets from one or more workbooks into a summary file

Public Sub ConsolidateSheets() 
    Dim Wb1 As Workbook 
    Dim Wb2 As Workbook 
    Dim ws1 As Worksheet 
    Dim ws2 As Worksheet 
    Dim ws3 As Worksheet 
    Dim rng1 As Range 
    Dim rng2 As Range 
    Dim rng3 As Range 
    Dim rngArea As Range 
    Dim lrowSpace As Long 
    Dim lSht As Long 
    Dim lngCalc As Long 
    Dim lngRow As Long 
    Dim lngCol As Long 
    Dim X() 
    Dim bProcessFolder As Boolean 
    Dim bNewSheet As Boolean 

    Dim StrPrefix 
    Dim strFileName As String 
    Dim strFolderName As String 

    'variant declaration needed for the Shell object to use a default directory 
    Dim strDefaultFolder As Variant 


bProcessFolder = (MsgBox("Process a single folder (Yes)," & vbNewLine & "or single file (No)", vbYesNo, "Application Scope: Folder or single File") = vbYes) 
    bNewSheet = (MsgBox("Extract all data to a single sheet (Yes)," & vbNewLine & "or a target file sheet for each source sheet (No)", vbYesNo, "Output Format: Single sheet or sheet by sheet collection") = vbYes) 
    If Not bProcessFolder Then 
     If Not bNewSheet Then 
      MsgBox "There isn't much point creating a exact replica of your source file :)" 
      Exit Sub 
     End If 
    End If 

    'set default directory here if needed 
    strDefaultFolder = "C:\temp" 

    'If the user is collating all the sheets to a single target sheet then the row spacing 
    'to distinguish between different sheets can be set here 
    lrowSpace = 1 

    If bProcessFolder Then 
     strFolderName = BrowseForFolder(strDefaultFolder) 
     'Look for xls, xlsx, xlsm files 
     strFileName = Dir(strFolderName & "\*.xls*") 
    Else 
     strFileName = Application _ 
         .GetOpenFilename("Select file to process (*.xls*), *.xls*") 
    End If 

    Set Wb1 = Workbooks.Add(1) 
    Set ws1 = Wb1.Sheets(1) 
    If Not bNewSheet Then ws1.Range("A1:B1") = Array("workbook name", "worksheet count") 

    'Turn off screenupdating, events, alerts and set calculation to manual 
    With Application 
     .DisplayAlerts = False 
     .EnableEvents = False 
     .ScreenUpdating = False 
     lngCalc = .Calculation 
     .Calculation = xlCalculationManual 
    End With 

    'set path outside the loop 
    StrPrefix = strFolderName & IIf(bProcessFolder, "\", vbNullString) 

    Do While Len(strFileName) > 0 
     'Provide progress status to user 
     Application.StatusBar = Left("Processing " & strFolderName & "\" & strFileName, 255) 
     'Open each workbook in the folder of interest 
     Set Wb2 = Workbooks.Open(StrPrefix & strFileName) 
     If Not bNewSheet Then 
      'add summary details to first sheet 
      ws1.Cells(Rows.Count, "A").End(xlUp).Offset(1, 0) = Wb2.Name 
      ws1.Cells(Rows.Count, "A").End(xlUp).Offset(0, 1) = Wb2.Sheets.Count 
     End If 
     For Each ws2 In Wb2.Sheets 
      If bNewSheet Then 
       'All data to a single sheet 
       'Skip importing target sheet data if the source sheet is blank 
       Set rng2 = ws2.Cells.Find("*", ws2.[a1], xlValues, , xlByRows, xlPrevious) 

       If Not rng2 Is Nothing Then 
        Set rng1 = ws1.Cells.Find("*", ws1.[a1], xlValues, , xlByRows, xlPrevious) 
        'Find the first blank row on the target sheet 
        If Not rng1 Is Nothing Then 
         Set rng3 = ws2.Range(ws2.UsedRange.Cells(1), ws2.Cells(rng2.Row, "A")) 
         'Ensure that the row area in the target sheet won't be exceeded 
         If rng3.Rows.Count + rng1.Row < Rows.Count Then 
          'Copy the data from the used range of each source sheet to the first blank row 
          'of the target sheet, using the starting column address from the source sheet being copied 
          ws2.UsedRange.Copy ws1.Cells(rng1.Row + 1 + lrowSpace, ws2.UsedRange.Cells(1).Column) 
         Else 
          MsgBox "Summary sheet size exceeded. Process stopped on " & vbNewLine & _ 
            "sheet: " & ws2.Name & vbNewLine & "of" & vbNewLine & "workbook: " & Wb2.Name 
          Wb2.Close False 
          Exit Do 
         End If 
         'colour the first of any spacer rows 
         If lrowSpace <> 0 Then ws1.Rows(rng1.Row + 1).Interior.Color = vbGreen 
        Else 
         'target sheet is empty so copy to first row 
         ws2.UsedRange.Copy ws1.Cells(1, ws2.UsedRange.Cells(1).Column) 
        End If 
       End If 
      Else 
       'new target sheet for each source sheet 
       ws2.Copy after:=Wb1.Sheets(Wb1.Sheets.Count) 
       'Remove any links in our target sheet 
       With Wb1.Sheets(Wb1.Sheets.Count).Cells 
        .Copy 
        .PasteSpecial xlPasteValues 
       End With 
       On Error Resume Next 
       Wb1.Sheets(Wb1.Sheets.Count).Name = ws2.Name 
       'sheet name already exists in target workbook 
       If Err.Number <> 0 Then 
        'Add a number to the sheet name till a unique name is derived 
        Do 
         lSht = lSht + 1 
         Set ws3 = Wb1.Sheets(ws2.Name & " " & lSht) 
        Loop While Not ws3 Is Nothing 
        lSht = 0 
       End If 
       On Error GoTo 0 
      End If 
     Next ws2 
     'Close the opened workbook 
     Wb2.Close False 
     'Check whether to force a DO loop exit if processing a single file 
     If bProcessFolder = False Then Exit Do 
     strFileName = Dir 
    Loop 

    'Remove any links if the user has used a target sheet 
    If bNewSheet Then 
     With ws1.UsedRange 
      .Copy 
      .Cells(1).PasteSpecial xlPasteValues 
      .Cells(1).Activate 
     End With 
    Else 
     'Format the summary sheet if the user has created separate target sheets 
     ws1.Activate 
     ws1.Range("A1:B1").Font.Bold = True 
     ws1.Columns.AutoFit 
    End If 

    With Application 
     .CutCopyMode = False 
     .DisplayAlerts = True 
     .EnableEvents = True 
     .ScreenUpdating = True 
     .Calculation = lngCalc 
     .StatusBar = vbNullString 
    End With 
End Sub 


Function BrowseForFolder(Optional OpenAt As Variant) As Variant 
'From Ken Puls as used in his vbaexpress.com article 
'http://www.vbaexpress.com/kb/getarticle.php?kb_id=284 

    Dim ShellApp As Object 
    'Create a file browser window at the default folder 
    Set ShellApp = CreateObject("Shell.Application"). _ 
        BrowseForFolder(0, "Please choose a folder", 0, OpenAt) 

    'Set the folder to that selected. (On error in case cancelled) 
    On Error Resume Next 
    BrowseForFolder = ShellApp.self.Path 
    On Error GoTo 0 

    'Destroy the Shell Application 
    Set ShellApp = Nothing 

    'Check for invalid or non-entries and send to the Invalid error 
    'handler if found 
    'Valid selections can begin L: (where L is a letter) or 
    '\\ (as in \\servername\sharename. All others are invalid 
    Select Case Mid(BrowseForFolder, 2, 1) 
    Case Is = ":" 
     If Left(BrowseForFolder, 1) = ":" Then GoTo Invalid 
    Case Is = "\" 
     If Not Left(BrowseForFolder, 1) = "\" Then GoTo Invalid 
    Case Else 
     GoTo Invalid 
    End Select 

    Exit Function 

Invalid: 
    'If it was determined that the selection was invalid, set to False 
    BrowseForFolder = False 
End Function 
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