Проверить существует ли файл vba excel

Sub test()

thesentence = InputBox("Type the filename with full extension", "Raw Data File")

Range("A1").Value = thesentence

If Dir("thesentence") <> "" Then
    MsgBox "File exists."
Else
    MsgBox "File doesn't exist."
End If

End Sub

In this when i pickup the text value from the input box, it doesn’t work. If however, if remove "the sentence" from If Dir() and replace it with an actual name in the code, it works. Can somebody help?

Sub test()

thesentence = InputBox("Type the filename with full extension", "Raw Data File")

Range("A1").Value = thesentence

If Dir(thesentence) <> "" Then
    MsgBox "File exists."
Else
    MsgBox "File doesn't exist."
End If

End Sub

4

'Note: this is Excel VBA code
Public Sub LogReader()
    Dim Pos As Long
    Dim Dialog As Office.FileDialog
    Set Dialog = Application.FileDialog(msoFileDialogFilePicker)

    With Dialog
        .AllowMultiSelect = True
        .ButtonName = "C&onvert"
        .Filters.Clear
        .Filters.Add "Log Files", "*.log", 1
        .Title = "Convert Logs to Excel Files"
        .InitialFileName = "C:InitialPath"
        .InitialView = msoFileDialogViewList

        If .Show Then
            For Pos = 1 To .SelectedItems.Count
                LogRead .SelectedItems.Item(Pos) ' process each file
            Next
        End If
    End With
End Sub

1

Function fileExists(s_directory As String, s_fileName As String) As Boolean

  Dim obj_fso As Object, obj_dir As Object, obj_file As Object
  Dim ret As Boolean
   Set obj_fso = CreateObject("Scripting.FileSystemObject")
   Set obj_dir = obj_fso.GetFolder(s_directory)
   ret = False
   For Each obj_file In obj_dir.Files
     If obj_fso.fileExists(s_directory & "" & s_fileName) = True Then
        ret = True
        Exit For
      End If
   Next

   Set obj_fso = Nothing
   Set obj_dir = Nothing
   fileExists = ret

 End Function

' Check if a file exists
Function fileExists(s_directory As String, s_fileName As String) As Boolean

    Dim obj_fso As Object

    Set obj_fso = CreateObject("Scripting.FileSystemObject")
    fileExists = obj_fso.fileExists(s_directory & "" & s_fileName)

End Function

3

Sub test()

Dim thesentence As String

thesentence = InputBox("Type the filename with full extension", "Raw Data File")

Range("A1").Value = thesentence

If Dir(thesentence) <> "" Then
    MsgBox "File exists."
Else
    MsgBox "File doesn't exist."
End If

End Sub

Option Explicit

Enum IsFileOpenStatus
    ExistsAndClosedOrReadOnly = 0
    ExistsAndOpenSoBlocked = 1
    NotExists = 2
End Enum


Function IsFileReadOnlyOpen(FileName As String) As IsFileOpenStatus

With New FileSystemObject
    If Not .FileExists(FileName) Then
        IsFileReadOnlyOpen = 2  '  NotExists = 2
        Exit Function 'Or not - I don't know if you want to create the file or exit in that case.
    End If
End With

Dim iFilenum As Long
Dim iErr As Long
On Error Resume Next
    iFilenum = FreeFile()
    Open FileName For Input Lock Read As #iFilenum
    Close iFilenum
    iErr = Err
On Error GoTo 0

Select Case iErr
    Case 0: IsFileReadOnlyOpen = 0 'ExistsAndClosedOrReadOnly = 0
    Case 70: IsFileReadOnlyOpen = 1 'ExistsAndOpenSoBlocked = 1
    Case Else: IsFileReadOnlyOpen = 1 'Error iErr
End Select

End Function    'IsFileReadOnlyOpen

4

Function FileExists(fullFileName As String) As Boolean
    FileExists = VBA.Len(VBA.Dir(fullFileName)) > 0
End Function

Function FileExists(fullFileName As String) As Boolean
  If fullFileName = "" Then
    FileExists = False
  Else
    FileExists = VBA.Len(VBA.Dir(fullFileName)) > 0
  End If
End Function

1

Function FileExists(fullFileName As String) As Boolean
    FileExists = VBA.Len(VBA.Dir(fullFileName)) > 0
End Function

0

Private Function File_Exists(ByVal sPathName As String, Optional Directory As Boolean) As Boolean
    'Code from internet: http://vbadud.blogspot.com/2007/04/vba-function-to-check-file-existence.html
    'Returns True if the passed sPathName exist
    'Otherwise returns False
    On Error Resume Next
    If sPathName <> "" Then

        If IsMissing(Directory) Or Directory = False Then

            File_Exists = (Dir$(sPathName) <> "")
        Else

            File_Exists = (Dir$(sPathName, vbDirectory) <> "")
        End If

    End If
End Function

2

что-то вроде этого

лучше использовать переменную рабочей книги для обеспечения дальнейшего контроля (при необходимости) открытой рабочей книги

обновлено, чтобы проверить, что имя файла является реальной рабочей книгой, — которая также делает избыточную первоначальную проверку, отличную от сообщения пользователя, чем текстовое поле пустым

Dim strFile As String
Dim WB As Workbook
strFile = Trim(TextBox1.Value)
Dim DirFile As String
If Len(strFile) = 0 Then Exit Sub

DirFile = "C:Documents and SettingsAdministratorDesktop" & strFile
If Len(Dir(DirFile)) = 0 Then
  MsgBox "File does not exist"
Else
 On Error Resume Next
 Set WB = Workbooks.Open(DirFile)
 On Error GoTo 0
 If WB Is Nothing Then MsgBox DirFile & " is invalid", vbCritical
End If

brettdj
03 май 2013, в 06:15

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Я использую эту функцию для проверки существования файла:

Function IsFile(ByVal fName As String) As Boolean
'Returns TRUE if the provided name points to an existing file.
'Returns FALSE if not existing, or if it a folder
    On Error Resume Next
    IsFile = ((GetAttr(fName) And vbDirectory) <> vbDirectory)
End Function

Patrick Honorez
30 янв. 2015, в 14:37

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Для проверки существования можно также использовать (работает как для файлов, так и для файлов):

Not Dir(DirFile, vbDirectory) = vbNullString

_{Результатом является True если файл или каталог существует.}

Пример:

If Not Dir("C:Temptest.xlsx", vbDirectory) = vbNullString Then
    MsgBox "exists"
Else
    MsgBox "does not exist"
End If

ZygD
18 нояб. 2015, в 06:21

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Вот мой обновленный код. Проверяет, существует ли версия до сохранения и сохраняет в качестве следующего доступного номера версии.

Sub SaveNewVersion()
    Dim fileName As String, index As Long, ext As String
    arr = Split(ActiveWorkbook.Name, ".")
    ext = arr(UBound(arr))

    fileName = ActiveWorkbook.FullName

    If InStr(ActiveWorkbook.Name, "_v") = 0 Then
        fileName = ActiveWorkbook.Path & "" & Left(ActiveWorkbook.Name, InStr(ActiveWorkbook.Name, ".") - 1) & "_v1." & ext
    End If

   Do Until Len(Dir(fileName)) = 0

        index = CInt(Split(Right(fileName, Len(fileName) - InStr(fileName, "_v") - 1), ".")(0))
        index = index + 1
        fileName = Left(fileName, InStr(fileName, "_v") - 1) & "_v" & index & "." & ext

    'Debug.Print fileName
   Loop

    ActiveWorkbook.SaveAs (fileName)
End Sub

Andrew Prostko
21 март 2018, в 21:18

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Я брошу это там, а потом утку. Обычная причина, чтобы проверить, существует ли файл, — это избежать ошибки при попытке ее открыть. Как насчет использования обработчика ошибок, чтобы справиться с этим:

Function openFileTest(filePathName As String, ByRef wkBook As Workbook, _
                      errorHandlingMethod As Long) As Boolean
'Returns True if filePathName is successfully opened,
'        False otherwise.
   Dim errorNum As Long

'***************************************************************************
'  Open the file or determine that it doesn't exist.
   On Error Resume Next:
   Set wkBook = Workbooks.Open(fileName:=filePathName)
   If Err.Number <> 0 Then
      errorNum = Err.Number
      'Error while attempting to open the file. Maybe it doesn't exist?
      If Err.Number = 1004 Then
'***************************************************************************
      'File doesn't exist.
         'Better clear the error and point to the error handler before moving on.
         Err.Clear
         On Error GoTo OPENFILETEST_FAIL:
         '[Clever code here to cope with non-existant file]
         '...
         'If the problem could not be resolved, invoke the error handler.
         Err.Raise errorNum
      Else
         'No idea what the error is, but it not due to a non-existant file
         'Invoke the error handler.
         Err.Clear
         On Error GoTo OPENFILETEST_FAIL:
         Err.Raise errorNum
      End If
   End If

   'Either the file was successfully opened or the problem was resolved.
   openFileTest = True
   Exit Function

OPENFILETEST_FAIL:
   errorNum = Err.Number
   'Presumabley the problem is not a non-existant file, so it's
   'some other error. Not sure what this would be, so...
   If errorHandlingMethod < 2 Then
      'The easy out is to clear the error, reset to the default error handler,
      'and raise the error number again.
      'This will immediately cause the code to terminate with VBA standard
      'run time error Message box:
      errorNum = Err.Number
      Err.Clear
      On Error GoTo 0
      Err.Raise errorNum
      Exit Function

   ElseIf errorHandlingMethod = 2 Then
      'Easier debugging, generate a more informative message box, then terminate:
      MsgBox "" _
           & "Error while opening workbook." _
           & "PathName: " & filePathName & vbCrLf _
           & "Error " & errorNum & ": " & Err.Description & vbCrLf _
           , vbExclamation _
           , "Failure in function OpenFile(), IO Module"
      End

   Else
      'The calling function is ok with a false result. That is the point
      'of returning a boolean, after all.
      openFileTest = False
      Exit Function
   End If

End Function 'openFileTest()

riderBill
10 дек. 2015, в 06:57

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Возможно, это вызвано переменной Filename

File = TextBox1.Value

Должен быть

Filename = TextBox1.Value

matzone
03 май 2013, в 04:48

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Вы должны установить цикл условий, чтобы проверить значение TextBox1.

If TextBox1.value = "" then
   MsgBox "The file not exist" 
   Exit sub 'exit the macro
End If

Надеюсь, это поможет вам.

Leng Keong
03 май 2013, в 04:48

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