Im trying to create an incremental backup utility on a web form using vb.net for code behind.
So far i can copy files from directories including sub directories and that part works fine, my main problem is copying only the most recent / modified files to the backup folder, currently it is moving all the files each time.
Below is my code so far.
CODE:
I am wondering if there is an easy way to only copy new and modified files. Here is the code I am using to copy files with:
[Imports System.IO
Public Class Form1
Private Sub CopyButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
[Code].....
I'm trying to create a program with VS2008 that will:
Allow me to copy 30 newest .txt files from a folder by looking at date modified. This can be hardcoded or a text box that prompts the user for how many days of files to pull.
[code]...
I'm making a backup utility, and I need to know how to compress files. Is there a VB built-in utility for this? Also, if possible, can you tell me how to compress things to the maximum?
View 2 RepliesHow can i make my app execute some code at specified day/time (Day/minutes/secconds)?I need to make a scheduled app that will backup(copy) some files at specified time/date.
View 4 RepliesI am making a utility that will read through the files in a listbox.I already have it where it can read the files but you have to have the file selected in the listbox. Im wanting it to do it to all listbox items instead of just the selected one. This is what I was using:
Dim files = ListBox1.SelectedItem.ToString
Background: I have read a bunch of techniques to handle compression. I don't think SmartZipLib handles 7z. System.OS.compression does not seem to handle rar or 7z. I am trying to find one approach for all.The tools within Windows XP seem to handle them all from inside the file manager (at least on my computer).Question: how can I decompress all these files using the windows utility? I am guessing it is some sort of Shell command. Alternatively, is there another option?
View 2 RepliesI'm trying to create a zip file though vb.net and move files into it using the built in windows zip utlity. so far I can create the zip, but not able to move any files to it.Here's my code:
Dim emptyZip As Byte() = {80, 75, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}'Dim oApp As Object
File.WriteAllBytes("c:x.zip", emptyZip)
'The following code I found somewhere but doesn't work'oApp = CreateObject("Shell.Application")'oApp.Namespace("c:x.zip").CopyHere("c:Book1.xls")
I am trying to do a back up of files and was needing to know how to do something like
[Code]...
i am trying to get files name, modified date in a folder Before i get those files, can i pump a command by using vb to the folder and make them sort by modified date?
View 6 RepliesI am trying to delete rows of an .sdf file using the Database Explorer utility of Visual Basic. When doing so, I get the following error message:No rows were deleted.
A problem occurred attempting to delete row 1.
Error Source: Microsoft.VisualStudio.DataTools. Error Message: The row value(s) updated or deleted either do not make the row unique or they alter multiple rows(48 rows). Correct the errors and attempt to delete the row again or press ESC to cancel the change(s). It is correct that the data in the rows are not unique (and not supposed to be; there is no "error" to correct), but why should this prevent deleting them?
I am using vs 2010 web..I want to know that:how to upload only modified files/file to server instead of upload full project.if a made a small change in a aspx file and want to see how it look like live . then vs 2010 upload each time all pages/files to server and it take time.
View 1 Repliesi want to make a small application about backup so i want to make two buttons , the first one for choosing the source file and show in text box no(1) secondly, i mean a second button for place of new path for that file ( destination for backup file)
View 6 Repliesi have i problem when making some program to backup database sql server 2000. i have task to develop program with requirement like this:
1. this program must backup database from sql server 2000 (success).
2. this program must compress the backup to the smaller size (Not success,because the backup file is more than 3,9 Gb. i am using SharpZip Wrapper and not succes because the size exceeded.)
3.Copy the backup file or compress to another computer (Succes but take a long time because the size of file is more than 3,9 Gb. That's why I want compress the file.)
any one can give me solution for compress large file with size more than 3,9 Gb. This file will continue to grow in size,so i need compress it so i can copy more quickly?
or any one can reference some freeware can do the task?
I have a backup class it copys every thing but the unmovable files witch in return when i test the dive that i just backed up all files to will not boot up missing win system32 config files??how would i add permission to my code??? or how do i over ride cant copy file because a nother process is useing it?
View 3 Repliesso I know how to protect my data know. But how can I create a file that only I can open/delete/move?
View 6 Replies(VS.Net 2005/VB.Net)Why is it that VS.Net does not create LOCAL backup files of edits? Is there a way to make it do that?I accidentally overwrote a day's worth of changes by attempting to do a manual mergeoutside of VS.Net.Is there a way to make VS.Net create backup files of your changes each time you save?Delphi does it using an extension of .~pa for your source files and .~fm for your form files.This way, if your system crashes, which VS.Net is certainly going to do, you wouldn't lose the changes you made since your last save point.I know, I know, I shouldn't have been doing the merge outside of VS.Net but I had my reasons and now I[m paying the price.I just wished VS.Net was a little better IDE than it is because, frankly it sux. I am forever waitingfor something and not very productive using it. Hey, I'm getting good at watching paint dry because that is what developing in this tool seems like.
View 3 RepliesI have some code that does a Find & Replace in some text files, and closes the file when complete.However, when I try to use the Kill command in VB to cleanup these files (they are temporary files) when the program is closed, I get errors that the file is in use by another app or process.Is there a way I can force these files to close first? This also happens when I scan a document using the EZTWAIN.dll Scan to native function.Everything goes fine, but if I try to scan again to overwrite the file, the file is in use.This is happening on Windows Vista SP1.
View 10 Replieswhat is the correct way to archive my work? That sound pretty dumb. Let me try again. I begin a new project and design a form and then start adding code then save my work.Tomorrow I want to make changes to the project an design - how do I save and keep track of my form and code versions?
View 2 RepliesSo, in this program I added 2 necessary login codes let's say, first a code that I will provide and then the username and password from my website. I implemented both ways, the first one worked perfectly, however, the second one is giving me some problems, my idea for that control was not using a database of users, that was going to be too complicated for a 14 year old guy, so I decided to take the source code for my website and I took a fragment, the boxes for the login, username, password, forgot your password, remember me and some other boxes, great, that worked perfectly, I uploaded the HTML modified document to my website's files and linked it to the URL of the webbrowser control in one new form, good, it's working, but I wanted a simple condition that works for this function "When the webbrowser loads the success website, hide me and show the past login form, when this one shows the failed login, popup a messagebox that says the error.". I have been looking for that simple condition for a long time. I am using Visual Basic 2010 Express Edition.
View 4 Replieswhat is the best way to check if the files in a backup folder are older than the files in the reference folder?
View 4 RepliesHow to create automate (or) schedule backup files in vb.net application using window services
View 5 RepliesI have created installer from Visual Studio Package and Deployment, but after successful installation, the installer files (like dlls, images and all supporting files) modified date or even creation date has been changed and all have the same date depends on the date of installation. Is there a way I can preserve or maintain it's original creation/modified date?
View 2 RepliesI have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview. I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows). If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that.
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I have read about Network.Downloadfile and I think I understand it! I want to know if there is an easy way to test a files date modified before downloading it. I have a lot of files in the folder. I really want to "sync" the folder. I don't want to copy every file every time I want to only download the file if I don't have the file in the destination location or if I have an Old copy.
View 4 RepliesI have VB project and I tried to use PUBLISH feature.It seems to create nicely some kind of setup program, but the setup program does not ask where to copy files (it does not seem to copy filesto target machine "PROGRAM FILES".)Is this setup program somehow different from usual installers?
NOTE: I want that app files are installed to Hard disk( from USB stick source)Is the signing recommended or necessary? My App is pretty simple, its just using access DB + printer api, should I still sign?
how to copy files while the source files are variable?...I would say may source file size is 1mb and it continue increasing up to certain value let say 15mb.. i want to copy and append each bytes to complete the 15mb. I mean, copying while the source files are completing its size, that should it be. im using vb.net
View 5 RepliesIs there a way to maintain application modified Settings in the settings files after a program update? i.e. I have 10 or so values in the settings file and the users can modify them... when I send a program update they revert back to what I initially programmed them to be.
View 3 RepliesA routinely used application suddenly became impossible to access, with and error code indicating that the "VB Backup\Backup" file cannot be found. When I click File Open, the projects display as always. I select the application, double click the .sln file--and nothing happens. When I try to access the .vb file in Solution Explorer, it says "Cannot find VB Backup\Backup Files."
What are the Backup Files, when are they created, and why would they suddenly be "gone?" Is there any way to rebuild the Backup Files? I used the application last night and it worked fine. Today it can't be opened because the Backup Files cannot be found.
I have backups of the application folders, but get the same error message. Cannot be opened because the Backup FIles cannot be found.
I am writing a backup program that zips files. Using some sample code I have the following that creates a zip file. Problem is it does not get any subdirectories or files. Where am i going wrong?
Dim azFileNames() As String = Directory.GetFiles(SourceFolder)
Dim objCrc32 As New Crc32()
Dim zipStream As ZipOutputStream
[CODE]...
Alternativley, there is another component to the zipping dll that I could probably bypass the above altogether. It is: FZ.CreateZip(DestFile, SourceFolder, True, "", "") Where DestFile is (Output stream as system.io.stream). I'm trying to read all the files, directories, sub dir and files, etc from a specific location, let's say 'My Documents' into Destfile in which the FZ.CreateZip zips the file. FZ is FastZip which is from icsharpcode.net. They have c# examples, but that's greek to me. I'm trying to just learn VB!
