循环文件时未设置对象变量或With Block变量[重复]答案

【问题标题】：Object variable or With Block variable not set when looping through files [duplicate]循环文件时未设置对象变量或With Block变量[重复]
【发布时间】：2021-08-28 13:50:53
【问题描述】：

我正在尝试运行一个执行三件事的宏：

循环遍历一系列 excel 文件
标识包含文本“项目属性”的行
使用此行设置范围以执行合并操作

我使用在其他地方找到的代码构建块构建了它，并且我知道每个代码块都是独立工作的（即我可以在不执行操作的情况下运行所有文件，并且我可以识别行并执行合并）但是当我组合他们，我得到一个运行时 91 错误“对象变量或未设置块变量”-与此行“FindRowNumber = FindRow.Row”相关联。

寻找有关如何避免将此变量设置为“无”的指导，因为它显示在“监视”窗口中。

谢谢！

'''     
Sub LoopAllExcelFilesInFolder()
'PURPOSE: To loop through all Excel files in a user specified folder and perform a set task on them
'SOURCE: www.TheSpreadsheetGuru.com

Dim wb As Workbook
Dim myPath As String
Dim myFile As String
Dim myExtension As String
Dim FldrPicker As FileDialog

'Optimize Macro Speed
  Application.ScreenUpdating = False
  Application.EnableEvents = False
  Application.Calculation = xlCalculationManual

'Retrieve Target Folder Path From User
  Set FldrPicker = Application.FileDialog(msoFileDialogFolderPicker)

    With FldrPicker
      .Title = "Select A Target Folder"
      .AllowMultiSelect = False
        If .Show <> -1 Then GoTo NextCode
        myPath = .SelectedItems(1) & "\"
    End With

'In Case of Cancel
NextCode:
  myPath = myPath
  If myPath = "" Then GoTo ResetSettings

'Target File Extension (must include wildcard "*")
  myExtension = "*.xls*"

'Target Path with Ending Extention
  myFile = Dir(myPath & myExtension)

'Loop through each Excel file in folder
  Do While myFile <> ""
    'Set variable equal to opened workbook
      Set wb = Workbooks.Open(Filename:=myPath & myFile)
    
    'Ensure Workbook has opened before moving on to next line of code
      DoEvents
    
    'Change First Worksheet's Background Fill Blue
        wb.Worksheets(1).Range("A1:Z1").Interior.Color = RGB(51, 98, 174)
        Call RowStart(wb)
    
    'Save and Close Workbook
      wb.Close SaveChanges:=True
      
    'Ensure Workbook has closed before moving on to next line of code
      DoEvents

    'Get next file name
      myFile = Dir
  Loop

'Message Box when tasks are completed
  MsgBox "Task Complete!"

ResetSettings:
  'Reset Macro Optimization Settings
    Application.EnableEvents = True
    Application.Calculation = xlCalculationAutomatic
    Application.ScreenUpdating = True

End Sub

Sub RowStart(wb As Workbook)
Dim FindRowNumber As Long, FindRowStart As Integer, FindRow As Range

With wb.Worksheets("Project Details")
    Set FindRow = .Range("A:A").Find(What:="Project Attributes", LookIn:=xlValues, LookAt:=xlWhole)
    End With
    
    FindRowNumber = FindRow.Row
    FindRowStart = FindRowNumber + 1
    'MsgBox FindRowStart
    Call vba_merge(FindRowStart, wb)

End Sub

【问题讨论】：

.find 没有找到任何内容，因此返回了一个没有 .row 属性的空对象。

标签： excel vba loops file subroutine

【解决方案1】：

如 cmets 所述 - 您需要说明您的 Find 没有匹配：

Sub RowStart(wb As Workbook)
    Dim FindRow As Range
    
    With wb.Worksheets("Project Details")
        Set FindRow = .Range("A:A").Find(What:="Project Attributes", _
                                         LookIn:=xlValues, LookAt:=xlWhole)
    End With
    
    If Not FindRow Is Nothing Then
        vba_merge FindRow.Row + 1, wb  'use of `Call` is outdated....
    Else
        MsgBox "Row not found in workbook '" & wb.Name & "'", vbExclamation
    End If
End Sub

【讨论】：