if i have .txt file which contains something like
abc, 204, dds
ssd, 1123, sdfb
aasds,1343,asd
and i need the words like
abc
ssd
aasds
before the first comma in my listbox
HTML
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.ShowDialog()
[code].....
i have 2 problems the first problem is if i have a .txt file how can i extract specific data. the second problem can i create batch files on the fly because of the need for a variable again it may not make sense but shout tyrannically
View 2 RepliesI need to make a program the displays the amount of female voters per precinct.The .txt file has 5 fields: first being precinct, 2nd gender, 3rd age, 4th registered, 5th affliation.Here is what I have so far but I don't know how to finish it.
Option Strict On
Imports System.IO
Public Class Form1
[Code]...
Reading WAV-files ?
View 3 RepliesI was wondering if anybody had heard of a library, preferably a .NET assembly, but Java will do as wel, that allows you to read the data in a Guitar Pro file (.gp3-gp4-gp5)I have this gigantor of a folder with about 50.000 song files, and would really love to write something that can actually archive all these files, for easier searching. And basic information like the tuning of the instruments in the song would be very useful parameters to retrieve from the file and add to the database.
I have searched the web but have yet to find anything like this, or a file definition for writing my own parser.
I'm creating a simple forms application where users can enter their details and save the information to a .ini file because I needed this for a simple game profile. I've tried to make it write "Name =" + txtname.Text but it won't work anymore. And as well as that, I don't think It will load the text back from the ini file.
Here's the code I used;
Public Class Form1
Dim hFile As Long
Dim sFilename As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
Form designer: [URL]
Form1.resk: [URL]
Form1.vb: [URL]
i want to read a set of files from a particular directory( for example: D:Date has set of .xls files like D1.xls, D2.xls, D3.xls). if the the file is not there then it should throw error.i am not getting how to to do this VB.Net?
View 1 RepliesReading from many text files
View 7 Repliesi have an application that loads a bunch of Mp3 files and then plays them. What I want to do is use a listview to display filename, album, artist and location. Now I can get the information into the listview no problem. BUT, I don't know a simple way to read in the ID3 tags from an Mp3 file.
View 3 RepliesI want to read info from an ini file. Is there an API I could use to get this done? Or is there an easy way to do it with vb 8?
View 6 RepliesWhich is the most performant way to read a large csv file in .NET? Using FileStream? or another class
View 4 RepliesI am suppose to create a module level array name Product and populate a list box with the contents of a file (ItemInfo.txt) The file contains the Item ID and price of the item. (Line 1 is an item, Line 2 is a price for Line 1, Line 3 is an item, Line 4 is a price for Line 3, and so on.) The problem i'm having is when i populated the list box, I only wanted to populate the list box with the items, not everyline from the file. I guess I wanted to put elements [0], [2], [4], [6], and [8] from the Product array in the list box, but I am putting everything in there. What am I missing?here is my code so far:
' Name: Glovers Project
' Purpose: Displays the price of an item
' Programmer: <Paul J. Williams> on <February 27, 2010>
[code]......
Dim fs As System.IO.FileStream
Dim r As System.IO.BinaryReader
Dim buffer(500) As Char
[Code]....
I thought this code would result in me filling 'txt1' with a bunch of header details [URL] and then the raw audio as binary.
But what actually happens is I get: "RIFF$@�WAVEfmt "
I need to read PST files and retrieve the email messages inside the files. Googling does not give me really give me an answer. As I'm new to this, can someone please tell me where I can begin?
View 5 RepliesI have an XML file (see attached) that has numerous different sections/categories.What I'm looking for is advice on how to pick out the different levels/categories and display them one after the other, with the click of a button obviously. Much like you would/can with a recordset using ADO.
View 5 RepliesI am making a program that stores information for my applications. There are 4 main things I need in the XML file, the login information (User name and password), Application names and keys, and the owner of the application (who bought it). The program allows the user to enter as many applications and owners as they want and once login information is correct it loads the data. Then on exit all the data saves to a XML file.My XML file looks like this[code]....
Once I read all that the only thing I get is one application and no owners. How do I make it read all of the Apps then stop at the end of the Application Element?
seeing as '.dat' files contain only what you want them to and there is no preset encryption for them etc could I write data to one by using this simple process:
1) Change file extension to '.txt'
2) Decrypt
3) Write
4) Encrypt
5) Change file extension to '.dat'
and pretty much the same for reading it. or am I thinking to simply?
I thought of the above way as i know how to write to text files already, but is this the best way to do it? or is there a better way?
EDIT: Nevermind you just write to it like a text file and encrypt/decrypt it. request lock/delete from mod.
I am trying to create a bunch of records, there will be a limited number of "Codes", about 50. Each "Code" is associated with a name from a textbox, I was trying to have it save each one when you click a button, to a .txt file.So, from the start the record will be blank, the person will go through the form, choose a number from a numerical up and down box, pick a name associated with it (both of these are mandatory and not implied). When they click the button, it will save the contents I talked about into a .txt file, say the number is #2, and the name is "Bob", the next time they try to change that value for #2, it will overwrite "Bob".
View 6 RepliesI have been given the task of basically reading and writing to and from files. Below is the code from one sub:
If btnSaveRecipe.Enabled = True Then
FileName = "C:UsersLeylaDocumentsRecipe TaskRecipe.txt"
FileWriter = New IO.StreamWriter(FileName)
[code]....
I can't work out what i've done wrong, but when I open the file itself in the folder, it is empty.
I know I've asked this before and for some reason I can never remember how to do it. I need to loop thru a directory structure and for every *.txt file, I need to open it and read it. This is a little application that basically searches for a given string. How do I do this?
View 2 RepliesI have an .ini file on the computer that tells where my Data path is.I need to have an app that will read the ini data path and place the files in that location of the data path in the .iniSome files need to be sent to that data path in the ini and the rest of the files are to be put in the location of the software.
View 1 RepliesI am trying to search for snippet for reading and writing ini files in visual basic .net.
View 3 RepliesBasically say I have a text file with the following contents:
"Tim", "USA", "1982"
"Jane", "Germany", "1980"
"Brad", "France", "1989"
Can I have a ListBox for each field, one listbox for Names, one for countries, one for years?
I need to read a dtd file using vb.net for processing the xml elements. How to do this?
View 3 RepliesInput File to read:
SAMPLE NO: 10S-02013
Moisture 10.1
[Code]....
I am not getting the right output I need, as whenever it reads a line, it looses my sample numeber.
I am writing a small tool that identifies digital scielence in non compressed PCM WAV files. Its purpose will be to scan files approximately 1 hour long, containing mostly scilence and spltting the periods of non scilence into files and discarding any digital silence which is encoded as null bytes.I am wondering what the most efficient way of scanning the files is. I am able to derive the number of bytes for each second from the file header (in my case 16000) so am considering reading into a buffer of this size then scanning byte for byte, if I identify a non-null byte I will start siphoning the data off to another file.My issue is with scanning large expanses of digital silence which could be many megabytes of data which would require examining each byte to determine wether or not its digital silence. Surely there is a more efficient way of skipping them as I am not interested in them.
View 7 RepliesMy problem is I have very large text files (approx 2GBs+).They have records in them based in one per line.Each line is not the same length and the data can be different lengths all the time.I am currently reading the file line by line, then splitting the data by common characters in the records. To process the full file it currently takes 3hours. This is way too slow for its purpose.
View 7 Repliesfind sample code to "read" a text file from a web server? This is the file: [URL]
I want to be able to evaluate if it contains some specified text... How can I refer to this file using VB.net and store it in a string variable?
Here's an example of what I want to do:
boolean aaa = false
'The following is located in the "tick" event handler of an activated timer with an interval of 600000 ms
[Code].....
I want to be remotely command all of my programs do something like this, all I have to do is to change the text in the text file to "now"
I'm writing a system with several programs, each of which will start off with a number of 'run time parameters' which will be stored in what I call 'personality files'. Each file will have about 10 elements ( file locations, logo files, dates, numbers , text strings ). I"m starting by building little programs which maintain ( build and modify ) the personality files. To begin the first one, I"m only reading/writing 3-4 strings ( I"ll graduate to dates and numbers later )When I run the program below, I get " The process cannot access the file 'c:yyyyyyyy.zzz' because it is being used by another process. ". I also get"A first chance exception of type 'System.IO.IOException' occurred in Microsoft.VisualBasic.dll "
I get these errors even though I've done the usual stuff like deleting other versions of the test file, cancelling other processes which might be involved, and so on.
Code:
'.... user has clicked on SAVE in menustrip ....
Private Sub FileSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FileSave.Click
[code]....
so i have it so that the user input three initials and presses an enter button. Then it goes into a listbox where theusers initials and game score enter. I then have it transfer to a text file. all this works but i need some code toun through the text file and arrange them from highest to lowestheres my current "HighScore" codei know its going to be a for loop but im a beginner in vb and it would be so much easier in java button1 is the enter buttonbutton2 is the save button that saves to a text file
Imports System.IO
Public Class HighScore
Dim objStreamWriter As StreamWriter
[code]......