I need to open an archive and list the contents, size of files, and crc of files inside any compressed file. Be it rar, zip, ace, lha, 7zip, etc.. What's the easiest or best way to do this?
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I want to add multiple files to a single compressed file using System.IO.Compression. And extract them back...So I found this code on MSDN which works fine, but does not support adding multiple files into 1 single compressed file. [URL]
View 1 RepliesI know .NET Framework 3.5 has a class which allows you to compress invidual files.But how can I add multiple files to a single output compressed file and extract them back later without using 3rd party assemblies just using .NET Framework in Visual Basic?
View 3 RepliesI have tryied to add the attributes but it dosn't make them that.If there is a way to so that tell me...
View 7 RepliesI'm designing a solution that involves a windows service running on a server that will have multiple clients requesting data from it. This windows service needs to read a few short details from some text files on the server, however there could be anywhere from 1000 to 100,000 of these text files. I've already written my code that goes through each of these files and extracts the relevant information from them and populates the properties of an instance of a custom class, then adds the class to a list. The problem is that if there is a large number of these files then looping through them all takes a long time and there are constantly new files being created and deleted in this folder as well, so I have designed the following system:
1. When the service starts it goes through every single file and gets the data I need from each one and writes it to an XML file (just one XML file that holds all of the info for all of the files, not an XML file for each one). It also stores the file name with each entry and then once it has done this loop through all the files the first time it goes through the file paths in the XML file and checks to see if this list of files is the same as what is actually now in the directory (as new files may easily have been created during the initial scan process). I figure this shouldnt take anywhere near as long as the initial scan because it is just checking to see if the same files exist, not reading data from all of them (although it may read data from the 50 or so that might have been created while the initial scan was running). 2. Once it has a list of files in the XML file that is the same as the real list, it starts a FileSystemWatcher to watch for any new files being created/deleted. 3. If the FileSystemWatcher finds a new file then it reads the info from this file and adds it to the XML file. So now when a client requests data from the service, the service just reads through the XML file and basically returns the entire contents to them. This should be much faster than the service reading through every single file every time a client requests data.
All I want to know really is - does this sound like a decent design? One problem I am curious about is what will happen if a client requests data at the same time as a new file being created, because the service will be trying to read from, and write to, the same XML file at the same time... I guess one way around this would be for it to check for a file lock before it tries to write the data and just keeps trying until the file isnt in use (say every 5 seconds or something)
I am using WCF for the communication between the client and server and WPF for the client side app.
I am trying to create a code where I placed sets of numbers in an array.I'll use a masktextbox to have the user enter the numbers to match what's in the array. If the user enters the number, ex: social, and the data is correct (matches the numbers in the array), something happens if the number entered in the masktextbox does not match any of the number sets in an array then another thing happens.The masktextbox so far only validates format and gets number only, however, I want the number entered to match whats in the array.
View 1 RepliesI have searched google and youtube for a tut on this but cant seem to find any :/I have a script that adds contents of textbox1 ans textbox2 to a online mysql database like username and and password.All this works perfect What i now need is to display the contents of the given database in a listbox or something.How would i go about this or is there any good tuts on this, all i seem to find is tuts using ms database not mysql
View 6 RepliesI am trying to create a program which will read the files that exist in a directory, and then write in a text file the specific information (full file name, date created)i have found several code in the site but i cant make it work, the machine i am running the code is XP and i am using VB2008.The code i have found is the following:
Imports System.IO
Imports System.String
[code].....
I don't really know how to use compression in VB.net, so I was wondering if someone could explain it to me. I'm also wondering if it is possible to create a compressed file with your own extension.
View 13 RepliesI'm trying to list all files in my desktop folder.But strUserDir value is "0" any ideas why?
My code
VB.net
Dim strUserDir As String = Environment.SpecialFolder.Desktop
For Each foundFile As String In My.Computer.FileSystem.GetFiles(strUserDir)
ListBox1.Items.Add(foundFile)
Next
How would I list all files inside a drive?
View 3 RepliesHow can I list all files on my C: drive?This is what I've tried:
ListBox1.Items.AddRange(Directory.GetFiles("D:", "*.*", SearchOption.AllDirectories))
But it gives this error:
Quote:
No access to the path D:System Volume Information.The error was translated from Norwegian, so might not be completely correct.
Im using the following code to get a list of files in an ftp directory.
Dim GetFiles As FtpWebRequest
GetFiles = FtpWebRequest.Create(New Uri(My.Settings.FTPAddress.ToString & "UPDATES/"))
[Code]....
I want to list some files from a folder to a list and put a filter for specific files like *.exe or *.jpg or something else and a name filter to be able to find files like Photo01.jpg, Photo02.jpg etc
View 1 RepliesI'm using this code to retrieve the list of files from a FTP server
Dim request As FtpWebRequest = WebRequest.Create("[URL]")
request.Credentials = New NetworkCredential(username, password)
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails
Dim response As FtpWebResponse = request.GetResponse()
Dim responseStream As Stream = response.GetResponseStream()
Dim reader As StreamReader = New StreamReader(responseStream)
messagebox.show (reader.ReadLine)
It gives me alot of information that I dont need, I know that I can use:
request.Method = WebRequestMethods.Ftp.ListDirectory
Which only retrieves the file name but when I try to change it, it gives me an error. Error number 550. ListDirectory so I can only get the file name?
The code uses dynamically backgroundworkers which all workers great, but with one problem. If you were to look at line:
For Each folderPath In File.ReadAllLines("file path here")
You would see that it loops the text file, and starts background work.
The problem is that it does not list the files in order.
For example were you see "file path here" that were you put the file path.
The text file itself would look something like this:
C: est
C:VB
The program starts listing file from the C:est then goes back to C:VB then back to C:est.
I know the reason why, but I can't stop it. I tried pausing that code inside the loop, but with no luck. How would be able to list the files in order?
vb.net
Private filePaths As New List(Of String)
Private workers As New List(Of BackgroundWorker)
Private Sub GetAllFiles()
For Each folderPath In File.ReadAllLines("file path here")
Dim worker As New BackgroundWorker
[Code] .....
I have a range of strings (Basically filenames) and I want to strip them down. Basically I load a list of files (path/clubs/) and it lists them into a list box as club1.adf club2.adf etc. I then select club1.adf for example from the list box, and hit a button. The button then loads path/club1 into my application. So basically I want to split the .adf from the club1. Something like the following, I imagine?
[Code]...
I want to get the list of selected files in the currently opened windows explorer, So that when a user opens a windows explorer and selects a specific collection of file from the selected directory in the windows explorer and presses a short key of the feature then the feature itself will copy the list of full path that can be used in other module.
View 5 RepliesThe problem with this code is that I can't list the contents for subfolders for example example /test but it work fine under root folder /.I have used the Ftp.Listdirectory component, which seems only work for root folder /.The coding language is Visual Basic 2010 Express.
View 1 Repliesmy form contains 4 list box and also the every list box contains the data. now i have to print the data of all the list box. how i can print the all the contents of the list box. for one list box i have succeeded to print the data but for more than one list box i tried a lot but couldn't print the data of the listbox.
View 6 RepliesI'm a sorta newcomer to visual basic and programming in general and I'm having a hell of a time trying to figure out how to put a listbox into an array. And just so we don't make any assumptions yes this is for school and no I'm not looking for anyone to do my homework for me. I just need some direction on how to do this step so I can make progress.
Anyway, the program is a data of students and I gotta do the code for alphabetically sorting by last name in ascending and descending order. I have to make it so whenever the A-Z button is pressed it will sort whatever is in the listbox, be it 1 record or all.[code]...
I have 4 string lists as follows
Dim input_list As New List(Of String) Dim input_POS As New List(Of String) Dim trigger_list As New List(Of String) Dim trigger_POS As New List(Of String)
I want to compare the contents of the input list (containing words (e.g., want, the) etc. to the ones of the trigger list (containign again words) and if a same entry (i.e. word) get the POS for both input word and trigger word from the relevant lists and put them into a property list. For example
input list (want, the, right)trigger list(want, there, wait)input list POS (verb, article, adjective)trigger list POS (verb, pronoun, verb)
Output property list (want:verb, want:verb) (only want is common between input and trigger list). Then I need to conduct a test between the two property items for similarites. If they are exactly the same, the code should output a confirmation "i.e., Yes" into a textbox. If not the code should output a "No" plus the contents of the property list into a textbox.
Im trying to find out if this one folder has any subfolders/files
Private Sub LoginForm1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If My.Computer.FileSystem.CurrentDirectory.'here' ("C:Encryption CenterACCOUNTS") Then
End If
End Sub
I am having a question on parsing XML files. In my local folder c: estrdl, I have a bunch of xml files.... what I want to achieve is to extract the contents between <commandtext>. The extracted information is basically a SQL query.... Next step is to extract the FROM Clause from the query and save that piece of information into a file with the same of xml file and suffix is "FROM", for ex, if the xml file is called abc.xml, the extracted piece will be called abc_FROM.txt....
View 3 RepliesI need to scan all files on our solution (aspx, js, ascx, etc). Our solution contains 22 projects all in all. What I need to accomplish is to search for all files which contains "img=" in its content (not filename containing "img") I don't want to do this manually of course (opening and checking files one by one). How I can do this faster.
View 1 RepliesHow can this be done? The .InnerText Property (when used on the containing div element) is giving me the html only. Is it possible to iterate through all the li elements contained and extract their values?
View 5 RepliesI have a pair of dropdown lists, they are linked in the sense that in it is basically a 2-d array. I have a list of accounts, and a list of domains for each account. So based on which account the user selects from the dropdown, I need to populate the domain list with the appropriate selections. Is there a way I can do this without [code]...
View 2 RepliesI understand I've been asking alot of similar questions around this topic, but I think, with luck, and your help, this will be the last time.
I have a listbox containing x-many different values.
What I want the program to do is to overwrite a pre existing file with all these values,
that is, essentially, to do the reverse of this piece of [code]...
how to create a list of the contents of a folder (T:ENERGY) using *.pdf as the filter. Also could this be adapted to read folders names and place that into a string ";" delimited to be called upon and modify T:ENERGY)?
View 6 RepliesI have a data bound listview which I wish to retrieve the select items values I am able to get the value in the debugger by using this code but can't work out how to get the item values out of lbi. How do you do this
Dim lbi
As ListBoxItem = VehicleList.ItemContainerGenerator.ContainerFromItem(VehicleList.SelectedItem)
[code].....
