I have written an application that monitors a log file. The Log file is locked by the writing application so I read it asynchronously:
Dim LicenseLog As New System.IO.FileStream("\serverLOGlicense.log", IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.ReadWrite)
I am loading data from an Excel File to a dataset and performing some computation. The problem arises after the application is closed, the Excel file is locked for some reason and can only be read.
View 2 RepliesI have been using VB2005 for many years on 2 PCs. Over the last month I have been getting an error when I try to run the project from the IDE:
Error 1 Unable to copy file "objx86DebugBackup.exe" to "binx86DebugBackup.exe". The process cannot access the file 'binx86DebugBackup.exe' because it is being used by another process.
C:WindowsMicrosoft.NETFrameworkv2.0.50727Microsoft.Common.targets 2324 9 Backup
My questions:
1. What has changed?
2. One thread I found suggested that it is a bug, but if true is this something that has been introduced recently (I'm not aware up updating VB2005 unless it happened as part of the general updates).
3. How do I get it back to where it was?
The file is actually locked by my own process, no other application can be using it. I've even tried it with a few line noddy program. I always have to come right out of the IDE, wait a couple of minutes and then go back in - a total productivity killer.
is there a way to unlock file that is locked by IIS without doing a IIS reset? If yes, how can I do that in VB
View 1 RepliesI am wondering how I can replace a file locked by another application. I am using VB.NET from 2008.
View 4 RepliesI have developed a program that allows drag and drop pictures using the followng [code] this will display the image in the pictruebox and saves the location of the image to a database. at this time i can rename the image in windows using the file.rename() function.now if i exit and come back into the section of the program with the image.i query the database for the image location and use the same type of code aka ploc [code]Now when i try to do a rename of the file i get an error that says access denied. I have even tried changing images, but as long as i am in the program i get access denied.I also can not change or delete these file from windows as long as my application is runningfile.rename() Is there a way to force my program to stop using this picture so i cand rename or delte it?
View 2 RepliesQuote:
System.Exception: Transaction (Process ID xx) was deadlocked on lock resources with another process and has been chosen as the deadlock victim.
I suspect this
Dim webc As New WebClient
webc.DownloadFile(remotexml, targetxml)
webc.Dispose()
Then i am using the targetxml right after that:
Dim xmldoc As New XmlDocument
xmldoc.Load(targetxml)
etc.
It seems that xml file is locked by the first process (WebClient).
In my application, i am downloading file from DMS system to my server. Once the file gets downloaded, on some environment, the iis keeps lock of the file and when the application tries to redownload the file and put the file on same location, an error is generated that file is being used by another process. Following is the code :
[Code]...
My program writes to a .txt file (and this is the ONLY program that writes to it) in a thread (with lowest priority), but every now and then it gets an error "The process cannot access the file because another process has locked a portion of the file" when it executes this code: swLog.WriteLine(sPacket).Other program reads from the file, not write to it, why do I get this error, and how can I get around it, or what shall I do when I get this error since I can't write to the file ?
Class
clsFile
Private swLogOrig As StreamWriter
[code].....
I've written the following code. It works fine for creating, deleting and renaming files. However when I set a file to read only, or modify the file (i.e open it in notepad and change the contents) nothing happens (it doesn't hit the change breakpoint)
I have the following
VB.NET
Private fsw As FileSystemWatcher
Public Sub WatchFiles(ByVal tblMappings As DataSet)
[code]....
Below is the part code I currently use to write to a file,
Try
Using sWriter As New IO.StreamWriter("C:Tmp.txt", False)
sWriter.Write(m_Buffer.ToString) : sWriter.Flush()
End Using
Return True
Catch ex As IOException
End Try
But some time this results in error
Access to the path 'C:Tmp.txt' is denied
My question is, Is there a safe way of detecting File access permissions, without handling exceptions, I mean if I can some how check before opening a file for any filehandle opened for it.
I followed the link [URL] And I want to put code
IF EXIST $(TargetPath).LOCKED (del $(TargetPath).LOCKED) ELSE (IF EXIST $(TargetPath) (move $(TargetPath) $(TargetPath).LOCKED))
For the case
Unable to copy file "objDebugxyz.dll" to "binDebugxyz.dll".How to write it correctly?
I am reading file with text contents on it.sample dictionary.txt contents:
aa
abaca
abroad
apple
Snippet A:
Dim path as String = Server.MapPath("dictionary.txt");
Dim dictionary() as String = {}
Try
[code]....
Basically, I want to make sure that I can handle/prevent this error.Does Snippet B, solves the problem, if not is there other way so that I can prevent this error.BTW, this a web application and I am expecting multiple users.
I have a vb .net application where the user can choose a directory into which an excel file is written. If the user selects a system directory (yes, my users do this, don't ask me why) then a System.Runtime.InteropServices.COMException is thrown at runtime. I am handling this exception telling the user to please select another directory.
View 1 RepliesShutting down a pc in vb.net is easy:Process.Start("shutdown", "-s -t 00")less the user has locked the pc in which case the above fails.How do I get around this in vb.net? How do I shutdown a locked PC?
View 5 RepliesI'm currently writing a small system tray app that needs to shutdown my PC at a certain time. That bit's easy:Process.Start("shutdown", "-s -t 00")But how do I do this when my PC is locked? The above doesn't work and I don't want to leave my PC unlocked and unattended
View 1 Repliesi need my application to determine if the desktop of the pc is locked or open.how would i go about doing this? i know that it is something to do with the registry but i dont know how to go about getting the values
View 1 RepliesI right clicked on the toolbox and in the context menu, there was a button that said "Show teresting controls, but they were disabled.
View 2 RepliesIs there any way to send keyboard input commands when computer is locked to a particularwindow
View 2 RepliesHow can I change the locked property of the GroupBOX and Panel?
View 16 Repliesmy problem today is the following:
Setup: 10 pc's connecting to a shared hard drive on a server connecting to a certain .mdb file from access 2003
Problem: We are a 3rd party tool for a Point of sale application and when the real software makes some modifications it locks certain tables which we don't lock. My ( Might be possible solution ) is: Is there a way to check with a query or an certain object if the table is locked if yes
I have a locked folder with me I want that folder along with its data to be copied into another folder...
View 2 RepliesI have this delphi code that requires the hardware ID to match the hardware it is running on
Code:
program Project1;
uses
Windows;
[Code]....
How can i create one for VB 2008 or can anyone convert this to VB 2008?
I have a filesystemwatcher waiting for .jpg files to arrive from the camera.he file system watcher invokes a delegate (it works but is that the proper way to handle it?) sub that does a couple of things:1. Adds the just arrived file name to a table2. Attempts to display the image in a picturebox on the form. When it displays the image it imprints some information on the image that the user has entered on the screen. I use a file stream to retrieve the image.The problem is, I'm getting a file in use orror on the "Img = ystem.Drawing.Image.FromStream(fs)"statement. Not all the time. Sometimes I can add three or four files to the folder in rapid succession with no issue. But then out of the blue the error will occur. Sometimes it's there to stay but other times it will go away and allow me to add morefiles.
View 2 RepliesI have a class which inherits a form class, and just recently it's started acting strange. All of the controls on the form are locked, and I don't understand why. I can't edit the properties of any controls, or anything.
View 4 RepliesI have VB 2005 windows application that is reading and writing records into Access 2003 database. After I deployed application to multiple servers - the database stays locked all the time - even if nobody has it open. When I check open files through Computer Manage - it doesn't show that anybody has it open. Yet - I can't delete .ldb file, I can't repair and compact the database to replace existing database, I can't rename database to replace it with other version.
View 6 RepliesI was debugging my VB.net app and stopping, changing the code etc in the normal way, but today the code pages are marked with a little padlock symbol as soon as I start to debug, and I can't change the code anymore.What's causing this and how can I stop it?
View 2 RepliesWe have a stored procedure that executes in a long time so we decided to enclose it in a thread. Before executing the long stored procedure, the procedure should be locked so that only one user can execute the thread. However, I have noticed that a user can still execute twice. Here is the code. [code] The problem is when I tested the code by opening two browsers then simultaneously process, two records are being inserted into our lock table. The second user should not be able to process because the DoProcess is already locked.
View 1 RepliesI've noticed that a few download management programs do this, like uTorrent for example, where you can set it to shut down the system when the download(s) complete and I would like to implement this in my app as well.Right now I'm usingProcess.Start("shutdown.exe", "-s -t 05")which works fine if the user is logged in, but my home computer has the screen saver set to lock the computer in which all my app does is exit but the system doesn't shut down like it does when it's logged in.
View 2 RepliesI want delete all files in a folder, but I get access denied as the file is locked.I use an email function before i'm trying to delete the files, the send email is a built in function of the application:fcMailer.SendMailWithAttachment Process.Company, "email", Subj, "Bo", "e:upload est.xls" i tried to set it to nothing: set fcMailer = nothing and set fcMailer.SendMailWithAttachment = nothing I'm using the below to delete the files
[code]
Const DeleteReadOnly = True
Set objFSO = CreateObject("Scripting.FileSystemObject")
objFSO.DeleteFile("e:upload*.*"), DeleteReadOnly
[/code]
How do i remove connection holding the file or simply just delete all locked files / or not locked?