Discussion :

[jean-marc35]

Bonjour

je ne sais pas comment detecter dans une macro , qu' un fichier ( sur un reseau - donc plusieurs utilisateurs ) est deja ouvert par un
autre utilisateur , avant de l' ouvrir moi meme

Merci d avance

[kiki29]

Salut, peut-être ici ? ou alors via une recherche.
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Code :

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Sub TestFileOpened()
 
    ' Test to see if the file is open.
    If IsFileOpen("c:\Book2.xls") Then
        ' Display a message stating the file in use.
        MsgBox "File already in use!"
        '
        ' Add code here to handle case where file is open by another
        ' user.
        '
    Else
        ' Display a message stating the file is not in use.
        MsgBox "File not in use!"
        ' Open the file in Microsoft Excel.
        Workbooks.Open "c:\Book2.xls"
        '
        ' Add code here to handle case where file is NOT open by another
        ' user.
        '
    End If
 
End Sub
 
' This function checks to see if a file is open or not. If the file is
' already open, it returns True. If the file is not open, it returns
' False. Otherwise, a run-time error occurs because there is
' some other problem accessing the file.
 
Function IsFileOpen(filename As String)
    Dim filenum As Integer, errnum As Integer
 
    On Error Resume Next   ' Turn error checking off.
    filenum = FreeFile()   ' Get a free file number.
    ' Attempt to open the file and lock it.
    Open filename For Input Lock Read As #filenum
    Close filenum          ' Close the file.
    errnum = Err           ' Save the error number that occurred.
    On Error GoTo 0        ' Turn error checking back on.
 
    ' Check to see which error occurred.
    Select Case errnum
 
        ' No error occurred.
        ' File is NOT already open by another user.
        Case 0
         IsFileOpen = False
 
        ' Error number for "Permission Denied."
        ' File is already opened by another user.
        Case 70
            IsFileOpen = True
 
        ' Another error occurred.
        Case Else
            Error errnum
    End Select
 
End Function

[Menhir]

Mettre un On error juste avant un Workbooks.Open et vérifier le type d'erreur généré.

[jean-marc35]

Merci Philippe , je vais tester , je te tiens au courant, @ +

[jean-marc35]

Salut, peut-être ici ? ou alors via une recherche.
Extrait :

Code :

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Sub TestFileOpened()
 
    ' Test to see if the file is open.
    If IsFileOpen("c:\Book2.xls") Then
        ' Display a message stating the file in use.
        MsgBox "File already in use!"
        '
        ' Add code here to handle case where file is open by another
        ' user.
        '
    Else
        ' Display a message stating the file is not in use.
        MsgBox "File not in use!"
        ' Open the file in Microsoft Excel.
        Workbooks.Open "c:\Book2.xls"
        '
        ' Add code here to handle case where file is NOT open by another
        ' user.
        '
    End If
 
End Sub
 
' This function checks to see if a file is open or not. If the file is
' already open, it returns True. If the file is not open, it returns
' False. Otherwise, a run-time error occurs because there is
' some other problem accessing the file.
 
Function IsFileOpen(filename As String)
    Dim filenum As Integer, errnum As Integer
 
    On Error Resume Next   ' Turn error checking off.
    filenum = FreeFile()   ' Get a free file number.
    ' Attempt to open the file and lock it.
    Open filename For Input Lock Read As #filenum
    Close filenum          ' Close the file.
    errnum = Err           ' Save the error number that occurred.
    On Error GoTo 0        ' Turn error checking back on.
 
    ' Check to see which error occurred.
    Select Case errnum
 
        ' No error occurred.
        ' File is NOT already open by another user.
        Case 0
         IsFileOpen = False
 
        ' Error number for "Permission Denied."
        ' File is already opened by another user.
        Case 70
            IsFileOpen = True
 
        ' Another error occurred.
        Case Else
            Error errnum
    End Select
 
End Function