Backing Up A File?
May 31, 2011
I have a program that when I run it, it creates two files. One file is deleted every time it runs and the other is deleted only if I specify for it to be deleted. If I do not specify for it to be deleted and I run the same execution, the program complains. I want to be able to make a backup copy of the existing file and have that backup copy set to a file number increments every time it is backed up.
This is the command line that is sent to the program: relap5(program) -i input_file.i -o Output_file.o(this one is deleted every time) -r restart_file.r(this is the file that I want backed up.Here is a image of the gui that I created that does the above run for me.
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Jul 12, 2010
Im doing a project in which i need to take backup for the database each and every month while doing this the previous backup is replaced i dont want to replace it. every time i create backup it should remain there im using access as database?
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Nov 27, 2009
I am trying to backup an SQL database but can't get rid of the error:"The process cannot access the file 'C:Original.MDF' because it is being used by another process" Once I open a form, using VB2008 from Visual Studio 2008, closing the form and/or connections to the database seem to have no affect.
FileCopy("C:ORIGINAL.MDF, BACKUP.MDF") ' Works prior to opening a form that uses the SQL database
frmTest.Show ' The form uses the ORIGINAL.MDF database
frmTest.Close() ' Has no effect
[code]....
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Jun 5, 2009
All it is is that when playing World of Warcraft people are having to clear their cache for the game to operate all the time, if they don't do this then the game bugs out in some places - so I thought of this as a way to get better at VB .NET by making a small application that asks for the directory of their WoW folder, searches through their cache folders and deletes the ones that they are also asked how they'd like to delete.I don't plan on actually releasing this in any way, I just want to make it to further my VB .NET skills and hopefully get a little better.
Anyway, it doesn't make sense much, sorry about that, but all I want to ask is if this program will work on any other computer or will I have to find a way to deploy it?Also, one thing that I thought I should put in this program is a backup function just in case something goes wrong. I just thought of moving the cache files that are being deleted somewhere else but this will move the files and folders one-by-one, is there any way I can make a certain type of file that only this program can read, where the files being backed up are placed in?
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Jun 2, 2009
I have written a piece of code for my backup. It looks something like this:
Dim con As SqlConnection
Dim cmd As SqlCommand
con = New SqlConnection("Data
[code].....
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Mar 25, 2010
I am making a VB.NET application that can download/backup the database that is currently on a remote server. I have Remote Server IP,Username,Password and Database name. I am also able to connect to it. But I don't know what to do after connecting to it. I don't know what all files are need to be backed up. (I think database and log file both must be backed up, I am not sure).
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Feb 29, 2012
I need to create an application that will restore a user's mapped drives from a database. To do this, I need to create a script that will automatically back up the user's mapped drives on logon.
What would be the best way to go about doing this?
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May 23, 2010
is it possible to skip forward or backup to the previous record in a database within a Do Loop of an ExecuteReader routine? For example, with the following code:
DMDatabase01.Open()
DMCommand01 = New OleDbCommand("Select * From DB01Table01 Order By DB01F01, DB01F02", DMDatabase01)
DMReader01 = DMCommand01.ExecuteReader()
Do While DMReader01.Read = True
[Code]...
I have the need as part of a larger data comparison program to not always read the next sequential record - at some points I want to go back to the previous record, or skip forward to the next record, but stay within the Do Loop.
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Dec 20, 2011
I have a class that exposes an auto implemented property Enabled
[Code]...
But If I had not use an auto implemented property and declared my own backing-field as follows this is accessible from the subclass: Private _Enabled as Boolean ---- EDIT ----
The abve line is incorrect - this is not possible, it was in fact Protected in the original code which allowed access from the sub class See @JonSkeet answer ---- EDIT Of course I can just access Enabled from the sub class to work around this but can someone explain why this is the behaviour?
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Dec 15, 2010
I am wanting to copy a folder to a compressed archive like a zip and then, How would I go about doing it? Do I need to call winzip or something? If so would it look something like...
Try WinZip(FoldePath)End Try EDIT- I was also wanting to add .bak so it would be C:Test.zip.bak, or is there a better way?
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Feb 27, 2012
Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
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Jan 8, 2011
I do one project in visual basic 2010.In visual basic 6 project can be make Package and deployment (setup file or install file) file using Package and deployment wizard.But in visual basic 2010 express edition does not have Package and deployment wizard.how to make Package and deployment (setup file or install file) file in visual basic 2010 project?
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Jan 11, 2011
i need to read binary file and in this file found the string and replace it with other one and save the file afterwords. I found many example to read binary, but to find and replace is for me mistery.
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Oct 31, 2009
I'm trying to upload a file via FTP from my local computer to an FTP server, which is also on my local computer at the moment. I've got this sub I'm calling:
Public Sub UploadFTPFile(ByVal ftpservername, ByVal fullfilepath, ByVal filename, ByVal username, ByVal password)Dim clsRequest As System.Net.FtpWebRequest = _
DirectCast(System.Net.WebRequest.Create("ftp://" & ftpservername & "/" & filename), System.Net.FtpWebRequest)
clsRequest.Credentials = New System.Net.NetworkCredential(username, password)
clsRequest.Method = System.Net.WebRequestMethods.Ftp.UploadFile
[Code]...
I'm running an FTP Server using Golder FTP Server, which is freeware. I think it's setup correctly because connecting to the FTP Server using the exact same string as above using Windows Explorer works great.
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May 22, 2009
I am trying to create a log file which I am going to use to populate some controls (DataGridView or Treeview). I am trying to figure out if should use text files or XML files to do so. Effectively the log will highlight multiple phases in a client-side app. The log will be written to at various phases when the project is running. The user will always have the options move on to the next phase or save progress and exit the project. As such, I want the log file to highlight how far the user has progressed throught the various phases AND I want the log to highlight varous information from each phase. Whenever the user starts the project, they will be given the option to load existing log files. So the project will have to read these log files and append them where necessary as the user progresses.
I am not sure what the best way to do this is and below is a rudimentary approach using text files. As you can see, the top of the file would have a summary of all the phases and whether or not the user completed each phase. Next each phase would have a data section highlighting what data was stored along the way. I have used a ":" to denote each section. Then within each section I would obviously need to use a delimeter for all my data. So if Phase1 = True, then I would load all the pertinent data from "Phase1:" into the desired control. Can anyone provide an efficient way of doing this and provide some insight as to whether I should use XML instead. The phases my change during development and I am not sure yet which controls I will be using. Does XML provide more flexibility.
In summary I am looking to create, read/write and append log files and populate controls with the data in varous sections of the log file. Example:
Phase1 = True
Phase2 = True
Phase3 = False
Phase4 = False
[code]....
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May 4, 2009
I need to write data to a file, preferably in binary format, but I am unaccustomed with the concept. Where's the easiest place to get the basics? I could come here with a specific need, but I'm at the point right now where I am more willing to work within the confines of keeping it simple.
Here's what I know:
1. how to open a new file
2. how to specify the record length
3. how to close the file
Some specific questions:
Does the record length have to be constant throughout the file?
Can I read the nth record without reading the whole file?
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Jan 4, 2011
I have File Like "Sample.bak" and when I compress it to be "Sample.zip" I lose the file extension inside the zip file I meann when I open the compressed file I find "Sample" without any extension.
I use this code :
Dim name As String = Path.GetFileName(filePath).Replace(".Bak", "")
Dim source() As Byte = System.IO.File.ReadAllBytes(filePath)
Dim compressed() As Byte = ConvertToByteArray(source)
System.IO.File.WriteAllBytes(destination & name & ".Bak" & ".zip", compressed)
Or using this code :
Public Sub cmdCompressFile(ByVal FileName As String)
'Stream object that reads file contents
Dim streamObj As Stream = New StreamReader(FileName).BaseStream
[CODE]...
I need to compress the file without loosing file extension inside compressed file.
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Feb 3, 2010
I am working on a VB Console Application that takes an Autocad drawing type DWG and converts it to a PDF using a shell command that calls a third party application. In this case, acmecadconverter.exe from www.dwgtool.com. Then the PDF that is created needs a unique watermark, so I call a second application for that called pdftk.exe from www.accesspdf.com/pdftk/.
Everything works as intended, except when I try file names that contain spaces. The file system object does not tolerate spaces in the drawing file name. For instance, the following command gives me a system.io.filenotfoundexception...
My.Computer.FileSystem.RenameFile("Test Flowchart1.dwg", "Test~Flowchart1.dwg")
It's the same problem for all of my File System commands. Either file not found or invalid arguments.
The complete script I'm using is here:
Code:
Sub Main()
Dim arrArgs() As String = Command.Split(","), _
i As Integer, folderPath As String, myPart As String, _
[Code].....
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May 13, 2012
I'm currently developing an editor for an AFL management sim.I want to be able to load three or four multidimensional arrays to the program, then save them to the same file. I tried the tutorial on here but got completely muddled up. Why can't it be easy like in VB6 When it was like 10 lines of code tops!
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Jan 7, 2009
I am writing a program to calculate Pi to several hundred billion decimal places and this will require lots of GB of memory. I wrote a test program in VB2008 that saved the first 16 digits of Pi (without the decimal point) to both a text file and a random access file, just to be sure it was outputting the numbers properly. For reference the first 16 digits of Pi are:
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Jan 22, 2009
I have a program that can save to a .txt file.The issue is I need it to be done in a tab delimited way.Basically:
TextHere<Tab>TextHere<Tab>TextHere<NextLine>
TextHere<Tab>TextHere<Tab>TextHere<NextLine>
I have this so far, but all it does is put the TextBox1.Text next to TextBox2.Text
Code:
SaveFileDialog1.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
Dim FileWriter As StreamWriter
Dim results As DialogResult
[code]....
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Dec 6, 2010
Our program will start with the help of a FileSystemWatcher object. How can we check or the file is total copied, for example the file is 100 Mbyte it take a time it's ready for use. Idea:
Do While True
Try
N = testForUse(BigFile)
If N = 1 Then Exit Do
[CODE]...
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Dec 23, 2010
I have an app I created in Vb2010 (my 3rd VbApp) it is a file converter which works but all it does after convert is... I have a converted file but no file name plus it converts within its own directory as opposed to convert in dir where original file location.
So any clues as to how I always use file to converts name as defa and where the converted file will reside same dir as original file?
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Sep 19, 2010
I want to be able to able to read the dimensions of a TIF image without loading the entire file.
PS Using Visual Basic 2008 on Vista64.
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Oct 14, 2010
[URL] to create my sqlite db file. I created it as a sqlite db version 3 file. When I go to open the connection
[Code]...
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Oct 17, 2010
Need to know the code in which to loadfile (.rtf) into a richtextbox via user-selection when the rtf file is within the setup of the file system editor under 'Program Files'. Have used the following code and it doesn't work....
CODE:
Me.RichTextBoxDisplay.LoadFile(Application.StartupPath &
"Application FolderGarman SoftwareKing James Version 1611OTGenesisChaptersGen Ch2.rtf")
[Code].....
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Sep 27, 2010
Do you have some source code how to open a file (file browser) with file extension specific using Visual basic.net.
Just need to get the path then control this using the vb.net binding
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Nov 15, 2010
Here's my code: System.IO.File.Move(Form6.OpenFileDialog1.FileName, "Temp") I'm trying to make it so that the program copies the file that you select in the OpenFileDialog and moves it into the "Temp" folder. It gives me an error saying: Cannot create file when file already exists.
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Nov 8, 2011
What my program does is load a file (password list), then progressively reads each line of text in the file whilst writing each line to a new file. After X amount of lines have been written, it should start writing the lines of text to a new document until the initial password list has been split into X amount of password lists. The problem I have is that after hours of tweaking, all I can get it to do is write either blank ocuments, or write all of the lines to only one file. I really need it to be able to split into multiple files, preferably at runtime rather than loading a whole text document into the program in a textbox or array then writing it to new files.Below is the source:
Imports System
Imports System.Windows.Forms
Imports System.IO
[code].....
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Aug 17, 2011
If you take a look at my code
Code:
Private Sub CompileToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CompileToolStripMenuItem.Click
Dim SaveFile As New SaveFileDialog
[Code].....
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