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File sitting on a network drive is still open by another applicatiHow can I detect if a file sitting on a network drive is still open by another
application? This application resides on another machine on the network? I am using VB.NET 2003 Your help is highly appreciated Try to open it, if you cant open it, it's still in use.
You could write a try catch around this and eventually write some loop to test periodically if you can open it, and when you can, you could use the file? "Moumen VB.NET 2003/2005 Developer" <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message Show quoteHide quote news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... > How can I detect if a file sitting on a network drive is still open by > another > application? > > This application resides on another machine on the network? > > I am using VB.NET 2003 > > Your help is highly appreciated > Hi,
I tried your approach, but with no success. Could you please post some code on how you can do it? Thanks Show quoteHide quote "Joris De Groote" wrote: > Try to open it, if you cant open it, it's still in use. > You could write a try catch around this and eventually write some loop to > test periodically if you can open it, and when you can, you could use the > file? > > > "Moumen VB.NET 2003/2005 Developer" > <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message > news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... > > How can I detect if a file sitting on a network drive is still open by > > another > > application? > > > > This application resides on another machine on the network? > > > > I am using VB.NET 2003 > > > > Your help is highly appreciated > > > > > I would write something like:
' Precondition: the file "theFile" is known to exist Public Function IsLocked(ByVal theFile As String) As Boolean Dim theStream As FileStream Dim theResult As Boolean Try ' To test if the file is locked, it is enough just to try and open it and handle ' any (resulting) exception. If an exception is raised, then the file is locked. theStream = New FileStream(theFile, FileMode.Open, FileAccess.Write) ' Success theResult = False Catch ex As IOException ' We failed to open it for writing, so it's probably locked. theResult = True Finally If Not theStream Is Nothing Then theStream.Close() End If End Try Return theResult End Function "Moumen VB.NET 2003/2005 Developer" <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message Show quoteHide quote news:8F86FF7A-46FF-4912-BF1B-A07D1B7216BD@microsoft.com... > Hi, > > I tried your approach, but with no success. > > Could you please post some code on how you can do it? > > Thanks > > > "Joris De Groote" wrote: > >> Try to open it, if you cant open it, it's still in use. >> You could write a try catch around this and eventually write some loop to >> test periodically if you can open it, and when you can, you could use the >> file? >> >> >> "Moumen VB.NET 2003/2005 Developer" >> <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message >> news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... >> > How can I detect if a file sitting on a network drive is still open by >> > another >> > application? >> > >> > This application resides on another machine on the network? >> > >> > I am using VB.NET 2003 >> > >> > Your help is highly appreciated >> > >> >> >> Yep
And if you want to wait until you want to open it, you can stil write a while loop around it and keep trying until theResult = false . Greetz Show quoteHide quote "Robin Mark Tucker" <robintuckerhome@removehotmail.comremove> wrote in message news:e5mrjr$907$1$8302bc10@news.demon.co.uk... >I would write something like: > > > ' Precondition: the file "theFile" is known to exist > > Public Function IsLocked(ByVal theFile As String) As Boolean > > Dim theStream As FileStream > Dim theResult As Boolean > > Try > > ' To test if the file is locked, it is enough just to try and open > it and handle > ' any (resulting) exception. If an exception is raised, then the > file is locked. > > theStream = New FileStream(theFile, FileMode.Open, > FileAccess.Write) > > ' Success > > theResult = False > > Catch ex As IOException > > ' We failed to open it for writing, so it's probably locked. > > theResult = True > > Finally > > If Not theStream Is Nothing Then > theStream.Close() > End If > > End Try > > Return theResult > > End Function > > > > > > "Moumen VB.NET 2003/2005 Developer" > <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message > news:8F86FF7A-46FF-4912-BF1B-A07D1B7216BD@microsoft.com... >> Hi, >> >> I tried your approach, but with no success. >> >> Could you please post some code on how you can do it? >> >> Thanks >> >> >> "Joris De Groote" wrote: >> >>> Try to open it, if you cant open it, it's still in use. >>> You could write a try catch around this and eventually write some loop >>> to >>> test periodically if you can open it, and when you can, you could use >>> the >>> file? >>> >>> >>> "Moumen VB.NET 2003/2005 Developer" >>> <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in >>> message >>> news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... >>> > How can I detect if a file sitting on a network drive is still open by >>> > another >>> > application? >>> > >>> > This application resides on another machine on the network? >>> > >>> > I am using VB.NET 2003 >>> > >>> > Your help is highly appreciated >>> > >>> >>> >>> > > Joris & Robin,
Thank you very much for your valuable replies. However, I noticed that when I try to open a text file through NotePad.exe, my program cannot detect that the file is open for writing by NotePad. On the other hand, if I open the same text file with MS-Word, my program works perfectly. I would like my program to work with any application that tries to open the network file. Do you know why this happening only with NotePad? Thanks! Show quoteHide quote "Joris De Groote" wrote: > Yep > > And if you want to wait until you want to open it, you can stil write a > while loop around it and keep trying until theResult = false . > > Greetz > > "Robin Mark Tucker" <robintuckerhome@removehotmail.comremove> wrote in > message news:e5mrjr$907$1$8302bc10@news.demon.co.uk... > >I would write something like: > > > > > > ' Precondition: the file "theFile" is known to exist > > > > Public Function IsLocked(ByVal theFile As String) As Boolean > > > > Dim theStream As FileStream > > Dim theResult As Boolean > > > > Try > > > > ' To test if the file is locked, it is enough just to try and open > > it and handle > > ' any (resulting) exception. If an exception is raised, then the > > file is locked. > > > > theStream = New FileStream(theFile, FileMode.Open, > > FileAccess.Write) > > > > ' Success > > > > theResult = False > > > > Catch ex As IOException > > > > ' We failed to open it for writing, so it's probably locked. > > > > theResult = True > > > > Finally > > > > If Not theStream Is Nothing Then > > theStream.Close() > > End If > > > > End Try > > > > Return theResult > > > > End Function > > > > > > > > > > > > "Moumen VB.NET 2003/2005 Developer" > > <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message > > news:8F86FF7A-46FF-4912-BF1B-A07D1B7216BD@microsoft.com... > >> Hi, > >> > >> I tried your approach, but with no success. > >> > >> Could you please post some code on how you can do it? > >> > >> Thanks > >> > >> > >> "Joris De Groote" wrote: > >> > >>> Try to open it, if you cant open it, it's still in use. > >>> You could write a try catch around this and eventually write some loop > >>> to > >>> test periodically if you can open it, and when you can, you could use > >>> the > >>> file? > >>> > >>> > >>> "Moumen VB.NET 2003/2005 Developer" > >>> <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in > >>> message > >>> news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... > >>> > How can I detect if a file sitting on a network drive is still open by > >>> > another > >>> > application? > >>> > > >>> > This application resides on another machine on the network? > >>> > > >>> > I am using VB.NET 2003 > >>> > > >>> > Your help is highly appreciated > >>> > > >>> > >>> > >>> > > > > > > > I don't know this for sure (but this is what I think)
I don't think Notepad locks a file (since its pretty much a very basic program), MS-Word does. Joris "Moumen VB.NET 2003/2005 Developer" <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in message Show quoteHide quote news:B1438938-F43A-4005-B2F1-A8733891A33C@microsoft.com... > > Joris & Robin, > > Thank you very much for your valuable replies. > > However, I noticed that when I try to open a text file through > NotePad.exe, > my program cannot detect that the file is open for writing by NotePad. On > the > other hand, if I open the same text file with MS-Word, my program works > perfectly. > > I would like my program to work with any application that tries to open > the > network file. > > Do you know why this happening only with NotePad? > > Thanks! > > > > > > > > > "Joris De Groote" wrote: > >> Yep >> >> And if you want to wait until you want to open it, you can stil write a >> while loop around it and keep trying until theResult = false . >> >> Greetz >> >> "Robin Mark Tucker" <robintuckerhome@removehotmail.comremove> wrote in >> message news:e5mrjr$907$1$8302bc10@news.demon.co.uk... >> >I would write something like: >> > >> > >> > ' Precondition: the file "theFile" is known to exist >> > >> > Public Function IsLocked(ByVal theFile As String) As Boolean >> > >> > Dim theStream As FileStream >> > Dim theResult As Boolean >> > >> > Try >> > >> > ' To test if the file is locked, it is enough just to try and >> > open >> > it and handle >> > ' any (resulting) exception. If an exception is raised, then the >> > file is locked. >> > >> > theStream = New FileStream(theFile, FileMode.Open, >> > FileAccess.Write) >> > >> > ' Success >> > >> > theResult = False >> > >> > Catch ex As IOException >> > >> > ' We failed to open it for writing, so it's probably locked. >> > >> > theResult = True >> > >> > Finally >> > >> > If Not theStream Is Nothing Then >> > theStream.Close() >> > End If >> > >> > End Try >> > >> > Return theResult >> > >> > End Function >> > >> > >> > >> > >> > >> > "Moumen VB.NET 2003/2005 Developer" >> > <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in >> > message >> > news:8F86FF7A-46FF-4912-BF1B-A07D1B7216BD@microsoft.com... >> >> Hi, >> >> >> >> I tried your approach, but with no success. >> >> >> >> Could you please post some code on how you can do it? >> >> >> >> Thanks >> >> >> >> >> >> "Joris De Groote" wrote: >> >> >> >>> Try to open it, if you cant open it, it's still in use. >> >>> You could write a try catch around this and eventually write some >> >>> loop >> >>> to >> >>> test periodically if you can open it, and when you can, you could use >> >>> the >> >>> file? >> >>> >> >>> >> >>> "Moumen VB.NET 2003/2005 Developer" >> >>> <MoumenVBNET20032005Develo***@discussions.microsoft.com> wrote in >> >>> message >> >>> news:1D18802A-684A-4EC4-AE15-750E8C871713@microsoft.com... >> >>> > How can I detect if a file sitting on a network drive is still open >> >>> > by >> >>> > another >> >>> > application? >> >>> > >> >>> > This application resides on another machine on the network? >> >>> > >> >>> > I am using VB.NET 2003 >> >>> > >> >>> > Your help is highly appreciated >> >>> > >> >>> >> >>> >> >>> >> > >> > >> >> >> |
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