I am using Excel 97
I need to open an excel file G:\MyFiles\Info.xls using a button on my top toolbar.
If the file is already open I need to know through a msgbox that it is open and who on my network is using it.
Everybody has a logon username.
Can any of our experts please suggest codiing behind the button to achieve this.
Many thanks
Peter Whitts
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PeterWhitts,
There is no need to write code to achieve what you require.
In Tools/Options/General make sure you enter a User Name in the box. I suggest you put a full name and a telephone extension No. in the box. If the file is in use and some one else attemps to opens it, a dialogue box will pop up telling you who is using it. This will only work if the file is NOT a 'shared file'. By the way I strongly recommend you not to 'share' files and instead keep them as one user at a time. You will avoid file corruptions that way.
Patrick
If I get a system message box telling me that the file i want to open is being used by someone else what is the best way to trap this in order to stop my procedure from trying to open it and write some information to some of the cells...is there an error number attached to this system message.
Thanks for you help so far.
I don't believe that an error is raised. But you can turn off display alerts and check for the read-only property which indicates that someone else has the workbook open. You might want to make sure the user that clicked the button doesn't already have it open:
Sub IfOpenProcess ()
Dim sFile as string
Dim sPath as string
sFile = "myworkbook.xls"
sPath = "\\myshare\myfolder\"
If WorkbookisOpen(sFile) then
'already open, so activate it instead
Workbooks(sFile).Activate
Else
Application.displayalerts = false
Application.screenupdating
Workbooks.open (sPath & sFile)
If ActiveWorkbook.readonly = true then 'then someone else has it open
Application.displayalerts = true
Application.screenupdating
Activeworkbook.close
exit sub
End If
End If
'now you can perform operations on the workbook here
Application.displayalerts = true
Application.screenupdating
End Sub
Private Function WorkbookIsOpen(sFile) As Boolean
' Returns TRUE if the workbook is open
Dim X As Workbook
On Error Resume Next
Set X = Workbooks(sFile)
If Err = 0 Then WorkbookIsOpen = True _
Else WorkbookIsOpen = False
End Function
Business Accounts
Answer for Membership
by: vhpcompPosted on 2005-06-28 at 10:43:15ID: 14320963
There doesn't seem to be a way to do this using VBA within the workbook, however some tips are here:
http://exceltips.vitalnews
I'm not familar with the .net, so I'll take a stab at VBA using an additional tracker workbook.
As suggested in the article, you could use another workbook "user_tracker.xls" that has two columns, the file name and "current user"
like this
A1 B1
myworkbook.xls JoeUser
myworkbook2.xls SallyUser
The username in column b is overwritten each time the file is open
'First, in the workbook you are tracking you need code to get the user name.
'It is better to use Windows API than application.username, since that won't necessarily match
'network login. These two functions must go in the same module of that workbook:
Private Declare Function GetUserName Lib "advapi32.dll" _
Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) _
As Long
Function SystemUserName() As String
' Returns the name of the logged-in user
Dim Buffer As String * 100
Dim BuffLen As Long
BuffLen = 100
GetUserName Buffer, BuffLen
SystemUserName = Left(Buffer, BuffLen - 1)
End Function
'This sub goes in the Open event of the workbook you are tracking:
Private Sub Workbook_Open()
WriteUserName
End Sub
'this goes in another module
Sub WriteUserName()
dim sUser as string
Workbooks("user_tracker.xl
With activeworkbook
.Range("b1").value =SystemUserName 'this calls function and returns string
End With
Activeworkbook.close
End sub
'This code goes in the button click event:
Dim sCurUser as string
Workbooks("myworkbook.xls"
If activework.readonly = true 'then someone has it open, so check to see who
'close it here if you don't want it to remain open
Workbooks("user_tracker.xl
sCurUser = activeworkbook.range("B1")
ActiveWorkbook.close 'close the tracker workbook
msgbox("Workbook is currently opened by " & sCurUser")
End If
You may have to experiment to make sure the timing doesn't cause a problem if the files are being opened and closed very frequently.