Check whether an excel file is already open using VB. NETHi there, I have been looking for something along these lines for a while now and thought you were my saviour .. Word Document, not an Excel document (though I don't think that is relevant), and I will be editing it. Check excel file is open by other user up vote 2 down vote favorite I have a excel file place on server. I am using a application which written by VB.NET to open file in read only mode. User 1 open file in read only mode. How can user 2 detect that file is open or. You can check for the existinece of the temp file that starts with '~,' or here is a piece of C# code I used for a project to see, if I could open an excel file. The one issue you need to consider is that although you can do some tests on the file, there is always a small. To create a Visual Basic procedure to see if Book2.xls or Book2.xlss in drive C is already open, follow these steps. Note In Microsoft Office Excel 2007, you have to change Book2.xls to Book2.xlss in the following code. Start Excel, and then press ALT+F11 to. Hi there, Am read the data from excel file and proceed with the VB.Net code. I would like to know whether that excel file is already open using VB.Net code. Suppose am having the file 'Sample.CSV' if already opened a message will indicate to the user. Please let. Hi. I have two scenarios I need to do but don't know how. 1- Check to see if that excel file is already opened. If so then close it before writing to it else VB.NET will complain that the file is already opened. 2- have VB.NET just write over it while it is still open. At the. For purposes of checking whether users has a file open, this should be sufficient. Visual Basic.NET. 3 Responses to 'Checking if files are locked using VBA' Jordan Welbourne April 19, 2016 - 8:15 pm Reply I know this is a really old thread, but I found. I add your logic, the file is always locked !!! This is my code, with yours commented out .. NOT open, if it is open it crashes, hence my problem & need for a solution (I have had other options sent my way by a very helpful Cindy Meister, but they are so complicated compared. Dim my. File. Open As Boolean. How to open or read an existing Excel file in VB.NET and edit cells. Open and Edit Cells in an Excel file in VB.NET The following sections you can find how to open and edit an Excel worksheet through VB.NET. File. Open = Is. File. Open(my. News. Letter). If my. File. Open = True Then. Msg. Box("The file is already open"). Dim MSWord As New Word. Application. Dim MSDoc As New Word. Document. MSDoc = MSWord. Documents. Open(my. News. Letter). MSWord. Window. State = Word. Wd. Window. State. Window. State. Normal. MSWord. Visible = True. MSWord. Activate(). End If. ====================================================================. Private Sub Button. Click(sender As System. Object, e As System. Event. Args) Handles Button. Click. Me. Close(). Function Is. File. Open(By. Ref s. Name As String) As Boolean. Dim fs As File. Stream. File. Open(s. Name, File. Mode. Open, File. Access. Read, File. Share. None). ' Is. File. Open = False. Catch ex As Exception. Is. File. Open = True. End Try. 'End Function. However, as soon as I uncomment your code, something, I assume it is the "fs = File. Open" command seems to lock the Word Document in the vshost. Am I doing something wrong ? Is it an adjustable option ? How do I test if an Excel File is already open and being edited in Excel (VB. NET)? Thank you! I couldn't get the temp file approach to work, but here is the visual basic code I used: Private Function Is. Open(By. Ref folder As String, By. Ref file As String) As Boolean. Dim path As String = folder & file. Try. Using IO. File. Open(path, System. IO. File. Mode. Open. Or. Create, System. IO. File. Access. Read. Write)End Using. Catch ex As Exception. Return True. End Try. Return False. End Function. I switched your return true and return false statements, so that the method returns true when the file is already open in excel and false otherwise.
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