I am facing a problem which I believe is due to the garbage collection within .NET. I have the following conundrum where I am getting files from a folder, adding them to and array and then converting them all into one file. Once this is done I move this new file elsewhere, and need to delete the previous files.
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How can be find out which file is going to delete when, user provides command like DELETE or SHIFT + DELETE or by programmatically gives DELETE command. Well I know about FileSystemWatcher Class, but this class doesn't provide information before delete...
View 1 RepliesI try to rename a file by
file.copy(oldPathName, newPathName)
then
file.delete(oldPathName)
File.copy works.But somehow, a message saying oldPathName is being used by another process, when it tries to delete the old file.
I encountered the error:The process cannot access the file <full file path> because it is being used by another process.during System.IO.File.Delete(filename)I have opened the file using:pctPhoto.Image = Image.FromFile(filename)before I delete the file.
View 8 Replieshow to check a file which i want to delete is not more used by another process?I have a program it creates a temp file less than 1KBthen it sends it like an attachment in the emailthen I have to delete it,but cannot do it because exception comes out that it still used by another process
Try
Dim AnEmailMessage As New MailMessage
AnEmailMessage.From = New MailAddress("bla@bla.com")
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I'm creating a sub that will run a batch file, and then delete it when it has finished.[code]...
This causes the program to immediately delete the batch file before it can run. How can I break it up so that it won't delete the batch file until after it has finished?
I am trying to create an MDB as a temp file to save some tables and query them. After creating, I can't delete it ... Even before it is actually used. The process cannot access the file because it is being used by another process.
Dim mdbFileName As String = System.IO.Path.GetTempFileName
Dim objClassType As Type = Type.GetTypeFromProgID("ADOX.Catalog")
Dim obj As Object = Activator.CreateInstance(objClassType)
obj.[GetType]().InvokeMember("Create", System.Reflection.BindingFlags.InvokeMethod, Nothing, obj, New Object() {"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & mdbFileName & ";"})
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This MDB (after all operations) is huge (+200 Mb) and needs to be deleted.
When I load my solution and compile it after first starting the IDE, everything works as expected. After changing source and recompiling, I get the following compile error:
Error 11 Unable to copy file "objDebugCAMDRS.Library.dll" to "binCAMDRS.Library.dll". The process cannot access the file 'binCAMDRS.Library.dll' because it is being used by another process. CAMDRS.Library.
After closing Visual Studio 2005 and reopening the solution I can compile again successfully. This is an old solution that has been fine for a long time. I just recently changed computers and reinstalled everything.I am running win XP Pro sp2, Visual Studio 2005 sp1.
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
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I am having some issues with an application written in VB.net.
As part of a routine, an sqlce database gets backed up before the routine then if an error occurred gets restored. I am using system.io methods copy and delete.
I have released all the objects (connections, commands, datareaders) asscociated with the sqlce database by disposing them if they are not nothing. I also do a GC.COLLECT however when my delete command runs, an error message says it is open by another process. The PROCEXP.exe process explorer tool says it is attached to 4 undefined processes. After a while in debug mode, these clear and I am able to delete the file. However this is not acceptable as my program cannot "wait around" until they are released! I was under the impression that object.dispose forced an immediate disposal rather than waiting for the garbage collector to clean up (if you were just to use object=nothing), but still there appears to be a finite time before these objects are released.
My question is, is there an alternative way of checking (programatically in vb) for what is holding open an sqlce database (or in fact any other file for that matter) then killing these processes?
I am currently teaching myself the caveman code of Visual Basic (VB.net). Apparently I fail at If-statements or something, because I cannot get this to work...
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I am getting an error with this code.
The process cannot access the file 'C:UsersdavidDesktopTest Folderdavid 2.xml' because it is being used by another process.
how do i end the prosess after I create the file? Or am I creating it in the wrong manner.The underlined line is where the error ocures.
Public Sub AddDTData(ByVal value1 As String, ByVal value2 As String, ByVal filename As String)
dtUser.Rows.Add(value1, value2, Now.Date)
If My.Computer.FileSystem.FileExists(filename) Then
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I try to open a text file and write in some text, when i run the program it says the following error:The process cannot access the file 'D:VB projectsCategory_Characteristics.txt' because it is being used by another process.
THe code is as follows and the error hits in line :
Dim objWriter As New System.IO.StreamWriter(FILE_NAME)
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Dim FILE_NAME As String = "D:VB projectsCategory_Characteristics.txt"
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How can i access a file through FileStream which is being used by a window service. Actually i am trying to access a file which is also being used by our window service. I need to read data from this file. I am using below code but also getting following error:
Code:
Dim fs1 As IO.FileStream = New IO.FileStream(psPath, IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim sr As IO.StreamReader = New IO.StreamReader(fs1)
sData = sr.ReadToEnd
Error: The process cannot access the file 'FILENAME' because it is being used by another process.
I tried changing FileShare.Read parameter to FileShare.None but it didn't work out. I also read below post which says that it is not possible but i think there is a way to read it like if you open a file through Firefox but still window service is accessing it.
I am working with saving and deleting images. What i really want to do is check and see if an image exists in the destination folder and if it does automatically overwrite it. i couldnt figure that out so i figured i would look to see if the file was there if it is Delete it then write the new file..The issue is i keep getting this error.The process cannot access the file "FileName" because it is being used by another process. [code]
View 5 RepliesThe process cannot access the file 'C:UsersJoshuaDocumentsTest1.txt' because it is being used by another process.Now the Problem. When i step through my code, it will do as intended, e.g. clear all contents of test1.txt. when i run it at run time it throws this error. The reason for it throwing an error is the text file is reading string, int, string, and the txt file has a string including in the int part, so i'm making it so you can empty a corrupt file.
vb
Imports System.IO
Public Class Form1
Private norepeat As Boolean
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this process problem only happen when i add the line below (red colored (line 12 and 19))the error pointed at the colored (blue (line 32)) at saving the image to the database
here's the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.Title = "Set Image File"
OpenFileDialog1.Filter = "JPEG Files|*.jpg"
OpenFileDialog1.DefaultExt = "bmp"
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when i'm running the update it shows the error The process cannot access the file 'C:Documents and SettingsMackyMy DocumentsVisual Studio 2008ProjectsMarcelo 2.2.3MarceloinDebugStudentsMIC953867.jpg' because it is being used by another process.
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I can save new student information with picture.. but when it comes in updating the picture these codes didn't work......
After I managed to add a picture in a database, I wanted to add two but it doesn't work.Here is my code:[code...]
View 3 RepliesImports HR.EZTwainLibrary
Imports System.Runtime.InteropServices
Public Class frmNewScan
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this problem occurs when i scan an images for the second time. i think the error is my filename(C:MyImage.jpeg). how can i have a different filename thru coding or how to delete the tempory filename of an image to make scan again.
I am adding images to a FlowLayoutPanel control via the following code
Dim WithEvents Pedit As DevExpress.XtraEditors.PictureEdit
Private Sub LoadImagesCommon(ByVal fi As FileInfo)
Pedit = New DevExpress.XtraEditors.PictureEdit
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I have created a Windows service in VS 2005 that monitors a folder for XML files, reads some data elements from the XML using XmlDocument, then copies the files to another location. I find that when I drop 2 or more XML files into the folder simultaneously, it processes them with no problems, but when I drop the same files into the folder one at a time, I will get an error on the second file: "The process cannot access the file <my file> because it is being used by another process." If I stop my service, restart it, and drop the second file into the folder again, it works the second time. I am confident that no other program is accessing this file at the same time as my service. My impression is that the processing of file # 1 is somehow not releasing all of the resources, leading to the processing of file # 2 mistakenly thinking that it can't access that second file.
Dim FileWatcher As New FileSystemWatcher()
It points the watcher to my folder, sets up an event handler, then enables the watching:
FileWatcher.Path = InputFolderPath
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I am trying to write a Windows Script that will allow me to monitor the following: That 2 x seperate but specific processes within Component Services "Running Processes" list are currently running and have not reset within the past hour. If I already know the PID, then I can retrieve the CreationDate (I assume which I can use to check for restarts? or is this the actual process creation/installation date) for each specific process, however if a restart occurs the PID will change and my script needs to know what the new PID is without me telling it!
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I can trying the create a file, file is creating, but when restart the program, and opening the file, i getting this error;
View 7 RepliesHow To Properly Delete A File Using File.Delete()
View 5 RepliesI have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
View 4 RepliesI'm trying to write text to / read text from a file, but when it's trying to execute the My.Computer.FileSystem.WriteAllText code, it throws an exception: "The process cannot access to the file "<filename>" because it's being used by another process", and the "source" of the exception is "mscorlib"Note: this is a DLL file, which is being used by an application.
I tried to use:
If IO.File.Exists(My.Application.Info.DirectoryPath & "Sites_int.wblist") = True Then
Kill(My.Application.Info.DirectoryPath & "Sites_int.wblist")
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My.Computer.FileSystem.Rename(pathname,name) < < Throws the above exception I am trying to rename a small .jpg image, - previously (in this application program flow) accessed by the following:
btmp = New Bitmap(pathname) < < , and was followed by a btmp.Dispose well before the Rename called it. Plenty of time had gone by. But for some reason the "application process" is not releasing the pathname for me to rename or delete it.
I want to create a file removal which revieve directory files to delete from a text file..[code]
View 2 Repliesi am working on an application called logonscreenchangerxp i made my program and when i run it on xp virtualmachine i get errors the program is made using vb 2008 and using .net framework 2.0 i am not able to get full permissions to modify boot.ini file and a regisrty value and to delete a file
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