Is it possible using VBA to close all open files in a given directory, with out knowing filename/extension etc...
EDIT .....
I have directories linked to records, for example the record for Joe Bloggs has a directory created related to the name eg Bloggs, Joe
If the user changes the records names, the folder name therefore has to reflect this.
Currently I can change the directory name no problem if all associated files are closed. Also if these files are open I can prompt the user to close the associated files.
I was wondering would it be possible to close/ prompt to save the files?
EDIT AGAIN .....
To further complicate matters there are further directories in the directory tree that relate to each record. (I should have been clearer at the beginning, the database stores info on household insurance claims)
So you have a directory structure like so:
User Name _ID \ 1st line of Property Address _ID \ Claim No _ID
Thanks in advance for any help
Cheers
Noel
I think you can uncomplify this thing. Your Users table should have a primary key, user_id. Say Joe Bloggs' user_id is 27. Create the folder for him as C:\userdirs\27. If Joe's name is later changed, his user_id and user folder can stay the same.
If your users need access to those folders by user name rather than user_id, create shortcuts for them.
Public Function CreateUserDirShortcut(ByVal pLinkFolder As String, _
ByVal pLinkName As String, _
ByVal pTargetFolder As String) As Boolean
Dim objShell As Object
Dim objLink As Object
Dim strMsg As String
Dim blnReturn As Boolean
On Error GoTo ErrorHandler
Set objShell = CreateObject("WScript.Shell")
Set objLink = objShell.CreateShortcut(pLinkFolder & Chr(92) & pLinkName & ".lnk")
objLink.Description = pLinkName
objLink.TargetPath = pTargetFolder
objLink.Save
blnReturn = True
ExitHere:
Set objLink = Nothing
Set objShell = Nothing
CreateUserDirShortcut = blnReturn
On Error GoTo 0
Exit Function
ErrorHandler:
strMsg = "Error " & Err.Number & " (" & Err.Description _
& ") in procedure CreateUserDirShortcut"
MsgBox strMsg
blnReturn = False
GoTo ExitHere
End Function
Then you can create a shortcut to Joe Bloggs' user directory like this:
CreateUserDirShortcut "C:\shortcuts", "Bloggs, Joe", "C:\userdirs\27")
Related
I'm trying to implement a certain feature in the Microsoft Access Database using VBA, so when a certain button is pressed, it will check first the availability of the folder in a server. If the folder doesn't exist, the corresponding folder will be created. However, the folders have permissions attached to them, which means only certain users can access it, and hence only certain users should create / access the folder. I have tried the following:
on error resume next
If Dir("Server/Data/Celes", vbDirectory) = "Celes" Then
Else
MkDir ("Server/Data/Celes")
End If
But I'm not sure if it's the best way to handle this problem. I use the "On Error Resume Next", so that if the error occurs due to the lack of permission to the folder (that already exists), it will ignore it. What are some better ways to handle this? Thank you.
I also have checked the following links:
https://social.msdn.microsoft.com/Forums/office/en-US/a79054cb-52cf-48fd-955b-aa38fd18dc1f/vba-verify-if-user-has-permission-to-directory-before-saveas-attempt?forum=exceldev
Check Folder Permissions Before Save VBA
but both of them concerns with saving the file, not creating folder.
After several days without success, finally I found the solution:
Private function canAccess(path as string) as boolean
Dim oShell As Object
Set oShell = CreateObject("WScript.Shell")
Dim result As Integer
Dim command As String
command = "icacls " & """" & pfad & """"
result = oShell.Run(command, 0, True)
'Check privilege; file can be accessed if error code is 0.
'Else, errors are encountered, and error code > 0.
If result <> 5 and result <> 6 Then
KannAufDateiZugreifen = True
Else
KannAufDateiZugreifen = False
End If
end function
private sub button_click()
if canAccess ("Server/Data/Celes") then
If Dir("Server/Data/Celes", vbDirectory) = "Celes" Then
Else
MkDir ("Server/Data/Celes")
end if
End If
end sub
The function "canAccess" will simulate the running of the Windows shell, and execute "icacls" to see if the file can be accessed or not. If the function returns true, it means the "icacls" command is successful, which means the folder can be accessed. Otherwise, the file / folder can not be accessed.
I'm pretty sure this can be improved, but for now, it works.
I use the below function that recursively creates the full path (if required) and returns a value indicating success or failure. It works also with UNCs.
Private Function CreateFolder(ByVal sPath As String) As Boolean
'by Patrick Honorez - www.idevlop.com
'checks for existence of a folder and create it at once, if required
'returns False if folder does not exist and could NOT be created, True otherwise
'sample usage: If CreateFolder("C:\toto\test\test") Then debug.print "OK"
'updated 20130422 to handle UNC paths correctly ("\\MyServer\MyShare\MyFolder")
Dim fs As Object
Dim FolderArray
Dim Folder As String, i As Integer, sShare As String
If Right(sPath, 1) = "\" Then sPath = Left(sPath, Len(sPath) - 1)
Set fs = CreateObject("Scripting.FileSystemObject")
'UNC path ? change 3 "\" into 3 "#"
If sPath Like "\\*\*" Then
sPath = Replace(sPath, "\", "#", 1, 3)
End If
'now split
FolderArray = Split(sPath, "\")
'then set back the # into \ in item 0 of array
FolderArray(0) = Replace(FolderArray(0), "#", "\", 1, 3)
On Error GoTo hell
'start from root to end, creating what needs to be
For i = 0 To UBound(FolderArray) Step 1
Folder = Folder & FolderArray(i) & "\"
If Not fs.FolderExists(Folder) Then
fs.CreateFolder (Folder)
End If
Next
CreateFolder = True
hell:
End Function
'Must set a Reference to the Microsoft Scripting Runtime
Dim fso As FileSystemObject
Dim fil As File
Set fso = New Scripting.FileSystemObject
If fso.FileExists("\\serverName\folderName\fileName.txt") Then
'code execution here
Else
MsgBox "File and/or Path cannot be found", vbCritical, "File Not Found"
End If
I want to fill a textbox with a file path so that I can then add the filepath as a hyperlink in a record.
I created a button and wrote this subroutine:
Private Sub Browsebutt_Click()
Dim fd As Object
Set fd = Application.FileDialog(3) 'msoFileDialogFilePicker
With fd
.Filters.Clear
.InitialFileName = CurrentProject.Path & "\"
.Title = "Select File"
.AllowMultiSelect = False
.ButtonName = "Select"
.Filters.Add "All Files (*.*)", "*.*"
'.InitialView = msoFileDialogViewList'
If .Show Then
Me.Offlink = .SelectedItems(1)
Else
Exit Sub
End If
End With
Everything looks fine but the issue is when I browse to something stored in my company NAS. The path looks like this:
Z:\Folder1\File
It doesn't work on click, if instead of this I use the drag and drop function directly into the access table (not in the form) I obtain something like this:
\192.168.0.155\archive\Folder1\File
and it actually works, when I click on the link it opens my file.
So I was wondering if there is a way to have the file picker to provide the path with full ip.
Answering this will require some steps, and might depend slightly on your setup:
You can't change the file picker behaviour a lot, so I'm going to change out the drive letter for the UNC path. Depending on how your drive is mapped, it will either return a server name (such as \\MyServer or \\www.AnUrl.tld), or an IP address
First, I'm going to use a couple of helper functions I found here and adapted to use late bindings and increase usability.
Helper 1: Input: a full path. Output: the drive letter from that path
Public Function ParseDriveLetter(ByVal path As String) As String
'Get drive letter from path
ParseDriveLetter = vbNullString
On Error GoTo err_ParseDriveLetter
Dim oFileSystem As Object ' Scripting.FileSystemObject
Set oFileSystem = CreateObject("Scripting.FileSystemObject")
Dim oFolder As Object 'Scripting.Folder
' Next line throws error if mapping not available
Set oFolder = oFileSystem.GetFolder(path)
If (oFolder Is Nothing) Then
Debug.Print "ParseDriveLetter: Folder '" & path & "' is invalid"
Else
ParseDriveLetter = oFileSystem.GetDriveName(oFolder.path)
End If
Set oFolder = Nothing
Set oFileSystem = Nothing
Exit Function
err_ParseDriveLetter:
Select Case Err.Number
Case 76:
' Path not found -- invalid drive letter or letter not mapped
Case Else
MsgBox "Error no. " & CStr(Err.Number) & ": " & Err.Description & vbNewLine & _
"Was caused by " & Err.Source, vbOKOnly Or vbExclamation, "Error in function ParseDriveLetter"
End Select
End Function
Helper 2: Input: a drive letter from a mapped network drive. Output: the location the drive is mapped to
Public Function GetMappedPathFromDrive(ByVal drive As String) As String
Dim oWshNetwork As Object 'New WshNetwork
Dim oDrives As Object 'New WshCollection
Set oWshNetwork = CreateObject("WScript.Network")
' The EnumNetworkDrives method returns a collection.
' This collection is an array that associates pairs of items ? network drive local names and their associated UNC names.
' Even-numbered items in the collection represent local names of logical drives.
' Odd-numbered items represent the associated UNC share names.
' The first item in the collection is at index zero (0)
Set oDrives = oWshNetwork.EnumNetworkDrives
Dim i As Integer
For i = 0 To oDrives.Count - 1 Step 2
' Drive is oDrives.Item(i), UNC is oDrives.Item(i + 1)
If (0 = StrComp(drive, oDrives.Item(i), vbTextCompare)) Then
' We have matched the drive letter. Copy the UNC path and finish
GetMappedPathFromDrive = oDrives.Item(i + 1)
Exit For
End If
Next
Set oDrives = Nothing
Set oWshNetwork = Nothing
End Function
And now, the implementation in your code:
Me.Offlink = Replace(.SelectedItems(1), ParseDriveLetter(.SelectedItems(1)), GetMappedPathFromDrive(ParseDriveLetter(.SelectedItems(1))))
Note that if this returns the server name instead of the IP address, you can use the post #June7 referred to to get the IP address.
I have linked tables in an Access Database. I want to share this database and the associated excel workbooks with other users. I want to program a one-time use macro that the user will use the first time they use the database to relink the linked tables to the new user's local folder.
For example:
The linked table is current pulling the file from:
C:\Users\jane.doe\Desktop\Database Imports\Premier Account List.xlsx
When the new user (let's say their name is John Smith) relinks the table, it needs to read:
C:\Users\john.smith\Desktop\Database Imports\Premier Account List.xlsx
I basically want to change the file path from my OS Username to new user's OS Username. I already have the code to pull the OS Username, but I'm not sure how to code changing the file path. Here is the code to pull the OS UserName:
Private Declare Function apiGetUserName Lib "advapi32.dll" Alias _
"GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Function fOSUserName() As String
' Returns the network login name
Dim lngLen As Long, lngX As Long
Dim strUserName As String
strUserName = String$(254, 0)
lngLen = 255
lngX = apiGetUserName(strUserName, lngLen)
If (lngX > 0) Then
fOSUserName = Left$(strUserName, lngLen - 1)
Else
fOSUserName = vbNullString
End If
End Function
I am fairly new to VBA/Access, so if you could be as specific as possible with your answer, that would be great. Thanks in advanced!
The TableDef object has a Connect property that you need to change. It's a Read/Write String. You just need some string manipulation to make it how you want. Note that if they're moving the database file to the same path, you can just pull CurrentProject.Path rather than futzing with username APIs.
Sub ChangeTableLink()
Dim sNewPath As String
Dim lDbaseStart As Long
Dim td As TableDef
Dim sFile As String
Dim db As DAO.Database
'This is what we look for in the Connect string
Const sDBASE As String = "DATABASE="
'Set a variable to CurrentDb and to the table
Set db = CurrentDb
Set td = db.TableDefs("Fuel Pricing")
'Whatever your new path is, set it here
sNewPath = CurrentProject.Path & "\"
'Find where the database piece starts
lDbaseStart = InStr(1, td.Connect, sDBASE)
'As long as you found it
If lDbaseStart > 0 Then
'Separate out the file name
sFile = Dir(Mid(td.Connect, lDbaseStart + Len(sDBASE), Len(td.Connect)))
'Rewrite Connect and refresh it
td.Connect = Left(td.Connect, lDbaseStart - 1) & sDBASE & sNewPath & sFile
td.RefreshLink
End If
End Sub
I intended to write a VBA function which would copy a .mdb file if a certain criterion is met.
I hit a roadblock when I realized the FileCopy method throws an error if the .mdb it is trying to copy/paste has an associated .ldb file.
However, I am able to manually copy/paste the .mdb through windows explorer.
The .mdb i am trying to copy will always be locked, since I have added a reference to it in the DB that is running the filecopy procedure.
Can someone show me how to force a copy programatically with VBA? I tried searching but all I found was advice against doing this because of DB corruption etc. BUT this won't be an issue, because none of the DB objects will be manipulated while this procedure is executing.
If anyone is curious, here is my procedure:
Function fn_ArchiveMonthEndDB()
'load INI data
fn_ReadINI
Dim asOfDate As Date
asOfDate = getAsOfDate()
Dim monthEndDate As Date
monthEndDate = fn_GetMonthEndDate()
sSQL = "SELECT CDate(Nz(LastRunDate,'1/1/1990')) as BackupDate FROM tbl_UseStats WHERE ProcessName = 'Archive Backend DB'"
Dim rs As Recordset
Set rs = CurrentDb.OpenRecordset(sSQL)
Dim dLastBackup As Date
dLastBackup = rs!BackupDate
rs.Close
Set rs = Nothing
If (dLastBackup <> monthEndDate) Then
'determine if it actually is month-end. if yes, then archive the DB.
If (asOfDate = monthEndDate) Then
'archive backend DB
sDir = iBackendArchive & "\" & CStr(Year(monthEndDate)) & CStr(Month(monthEndDate))
'create dir if it does not exist
If (Dir(sDir, vbDirectory)) = "" Then
MkDir sDir
End If
FileCopy iBackendPath & "\ETL_be.mdb", sDir & "\ETL_be.mdb"
Else
'if no, do nothing
End If
ElseIf (dLastBackup = monthEndDate) Then
'do nothing, because we already took a backup of the backend DB.
End If
End Function
Microsoft explains it pretty simply in their KB article.
- Create a module and type the following lines in the Declarations section:
Option Explicit
Declare Function apiCopyFile Lib "kernel32" Alias "CopyFileA" _
(ByVal lpExistingFileName As String, _
ByVal lpNewFileName As String, _
ByVal bFailIfExists As Long) As Long
- Type the following procedure:
Sub CopyFile(SourceFile As String, DestFile As String)
'---------------------------------------------------------------
' PURPOSE: Copy a file on disk from one location to another.
' ACCEPTS: The name of the source file and destination file.
' RETURNS: Nothing
'---------------------------------------------------------------
Dim Result As Long
If Dir(SourceFile) = "" Then
MsgBox Chr(34) & SourceFile & Chr(34) & _
" is not valid file name."
Else
Result = apiCopyFile(SourceFile, DestFile, False)
End If
End Sub
- To test this procedure, type the following line in the Immediate window, and then press ENTER:
CopyFile "<path to Northwind.mdb>", "C:\Northwind.mdb"
I actually have 2 questions:
1. How might I see who is using my Access database?
E.g: There is someone with an Access database opened and it created the .ldb file, I would like to see a list of who opened that database (it could be more than one person).
2. How might I see who is using a linked table?
E.g: I have 10 different Access databases, and all of them are using a same linked table. I would like to see who is using that linked table.
I don't even know if it's really possible, but I really appreciate your help!
For you information: The main problem is that lots of people use the same Access in the same network drive, so when I need to change it I have to kick them all out, but I never know who is actually using it.
Update: Rather than reading and parsing the .ldb/.lacdb file, a better approach would be to use the "User Roster" feature of the Access OLEDB provider as described in the Knowledge Base article
https://support.microsoft.com/en-us/kb/285822
and in the other SO question
Get contents of laccdb file through VBA
Original answer:
I put together the following a while ago. It looked promising but then I discovered that computers are not immediately removed from the lock file when they disconnect. Instead, Jet/ACE seems to (internally) mark them as inactive: If ComputerA disconnects and then ComputerB connects, ComputerB overwrites ComputerA's entry in the lock file.
Still, it does provide a list of sorts. I'm posting it here in case somebody can offer some suggestions for refinement.
I created two tables in my back-end database:
Table: [CurrentConnections]
computerName Text(255), Primary Key
Table: [ConnectionLog]
computerName Text(255), Primary Key
userName Text(255)
A VBA Module in my back-end database contained the following code to read (a copy of) the lock file and update the [CurrentConnections] table:
Public Sub GetCurrentlyConnectedMachines()
Dim cdb As DAO.Database, rst As DAO.Recordset
Dim fso As Object '' FileSystemObject
Dim lck As Object '' ADODB.Stream
Dim lockFileSpec As String, lockFileExt As String, tempFileSpec As String
Dim buffer() As Byte
Set cdb = CurrentDb
cdb.Execute "DELETE FROM CurrentConnections", dbFailOnError
Set rst = cdb.OpenRecordset("SELECT computerName FROM CurrentConnections", dbOpenDynaset)
lockFileSpec = Application.CurrentDb.Name
If Right(lockFileSpec, 6) = ".accdb" Then
lockFileExt = ".laccdb"
Else
lockFileExt = ".ldb"
End If
lockFileSpec = Left(lockFileSpec, InStrRev(lockFileSpec, ".", -1, vbBinaryCompare) - 1) & lockFileExt
'' ADODB.Stream cannot open the lock file in-place, so copy it to %TEMP%
Set fso = CreateObject("Scripting.FileSystemObject") '' New FileSystemObject
tempFileSpec = fso.GetSpecialFolder(2) & "\" & fso.GetTempName
fso.CopyFile lockFileSpec, tempFileSpec, True
Set lck = CreateObject("ADODB.Stream") '' New ADODB.Stream
lck.Type = 1 '' adTypeBinary
lck.Open
lck.LoadFromFile tempFileSpec
Do While Not lck.EOS
buffer = lck.Read(32)
rst.AddNew
rst!computerName = DecodeSZ(buffer)
rst.Update
buffer = lck.Read(32) '' skip accessUserId, (almost) always "Admin"
Loop
lck.Close
Set lck = Nothing
rst.Close
Set rst = Nothing
Set cdb = Nothing
fso.DeleteFile tempFileSpec
Set fso = Nothing
End Sub
Private Function DecodeSZ(buf() As Byte) As String
Dim b As Variant, rt As String
rt = ""
For Each b In buf
If b = 0 Then
Exit For '' null terminates the string
End If
rt = rt & Chr(b)
Next
DecodeSZ = rt
End Function
The following code in the Main_Menu form of the front-end database updated the [ConnectionLog] table
Private Sub Form_Load()
Dim cdb As DAO.Database, rst As DAO.Recordset
Dim wshNet As Object '' WshNetwork
Set wshNet = CreateObject("Wscript.Network")
Set cdb = CurrentDb
Set rst = cdb.OpenRecordset("SELECT * FROM ConnectionLog", dbOpenDynaset)
rst.FindFirst "ComputerName=""" & wshNet.computerName & """"
If rst.NoMatch Then
rst.AddNew
rst!computerName = wshNet.computerName
Else
rst.Edit
End If
rst!userName = wshNet.userName
rst.Update
Set wshNet = Nothing
End Sub
Finally, the following form in the back-end database listed [its best guess at] the current connections
It is a "continuous forms" form whose Record Source is
SELECT CurrentConnections.computerName, ConnectionLog.userName
FROM CurrentConnections LEFT JOIN ConnectionLog
ON CurrentConnections.computerName = ConnectionLog.computerName
ORDER BY ConnectionLog.userName;
and the code-behind is simply
Private Sub Form_Load()
UpdateFormData
End Sub
Private Sub cmdRefresh_Click()
UpdateFormData
End Sub
Private Sub UpdateFormData()
GetCurrentlyConnectedMachines
Me.Requery
End Sub
Easy. Open the .ldb file in notepad (or any text editor) and you can see the machine names.
RE: How might I see who is using my Access database?
•E.g: There is someone with an Access database opened and it created the .ldb file, I would like to see a list of who opened that database (it could be more than one person).
Just happened across this while looking for something else, and I thought I might share what I do for this. Note that this assumes that the host computer (the computer on which the database file resides) uses file sharing to provide access to the file.
You will need to be on the host computer, or have authority to connect to that machine.
click Start
right-click My Computer and select Manage
if you're not on the host computer, right-click 'Computer Management' and enter the host's name
Expand 'Shared Folders' and click on 'Open Files'
At the right is the list of currently open files with the username for each current user
I agree with Gord's Original answer. I used this code on my database, it seems that there is a way around computers not being taken out of CurrentConnections upon exit of the DB.
I placed this on my main menu form because it is always open until the user exits. I used the unload event on my form to get this to work, and it works awesome! Here is my code
p.s. Ignore SetWarnings I just have that on so the user doesn't have to click through prompts.
Private Sub Form_Unload(Cancel As Integer)
Dim wshNet As Object
Dim deleteSQL As String
Set wshNet = CreateObject("WScript.Network")
DoCmd.SetWarnings False
deleteSQL = "DELETE tblCurrentConnections.* " & _
"FROM tblCurrentConnections WHERE[computerName] = '" & wshNet.computerName & "';"
DoCmd.RunSQL deleteSQL
DoCmd.SetWarnings True
End Sub