Read File Line By Line To Array List
Jun 22, 2009
I have code that reads the whole file, not line by line.
Here is the code:
FileOpen(1, filename, OpenMode.Input)
Do While Not EOF(1)
datatodisplay = LineInput(1)
Loop
FileClose(1)
I would like to know how I can read the file line by line and then add all results into an array list.
View 2 Replies
ADVERTISEMENT
Oct 14, 2011
what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
-------------
Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
View 3 Replies
Mar 17, 2010
I'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
View 3 Replies
Jul 9, 2011
I have a text file with an unknown number of lines. I want to read this file line by line and send each line's text in a check list box. But how am i gonna do that when i don't know how many lines exist in text the file? [code]The code above reads only the first line. I tried to do it as in vb6 using while not eof(but here i don't know what to write cause my file isn't opened in a certain channel).
View 4 Replies
Jul 11, 2010
i have a text file which contain 3 lines "ha 0.21, hb 0.35, hc 0.44" I want to read the file and get the second character of every line, which are "a, b and c" and assign them to array. My code below able to read the file but only able to get the last line of text. May i know how to do to get every second character and assign to array?
Dim FILE_NAME As String = "C:Test.txt"
Dim TextLine As String
If System.IO.File.Exists(FILE_NAME) = True Then
[Code]....
View 9 Replies
May 23, 2011
I've never had to work with them before, and I think I've got everything down except one big thing: I'm setting it up so that different settings have different values depending on what file is being read. I need to know how to tell vb to take a specific item in an array and make the setting equal to it. I know how to make it read the file and add each new line into the array, just need to make sure I'll have to correct method to get the item in the array to match up the setting.
View 3 Replies
Feb 25, 2009
the best method to read a huge file? I'm guessing its with "stream"?It's like a 200mb file.I need to read each line and do something if the line contains a search string.
Code:Imports System.IO
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim strFile As String = "c:
[code].....
View 5 Replies
Aug 30, 2010
I like search a file TXT with this contains:
Name "Paul"
Age "11"
City "Chicago"
my question is: Its possible get a string "Name" and give me the value "Paul"? I have this function for get strings:
[code]...
View 2 Replies
Feb 20, 2012
Why can I only see the first line split in the listboxes repeated 4 times? I can not see all the lines of the Dictionary.[code]...
View 6 Replies
Dec 26, 2009
I need to read a xls/xlsx/ods/txt file line by line,to get a column name of file .how to read a file line by line in vb.net?
View 1 Replies
Sep 19, 2010
Ok, I saw this code on the net
Dim sFileName As String
Dim srFileReader As System.IO.StreamReader
Dim sInputLine As String
sFileName = "D:UsersArbenDesktopSerieA.txt"
srFileReader = System.IO.File.OpenText(sFileName)
[Code]...
under the code I pasted at the top, but I get the text on line1 in all labels, like all labels become 1, while the text should be 1, 2, 3 and so on. So anyone can help me do that, each label gets the value of the next line in the txt file
View 3 Replies
Jan 16, 2011
how to read text from a listbox line by line and put current line in a label?
View 3 Replies
Jun 29, 2009
i would like to store contents from a text file line by line to arrays before copying them to another text file. what i have is currently like this:
[Code]...
Currently I'm only able to store the whole content into one variable, would like to store the content line by line in arrays.
View 5 Replies
Mar 19, 2012
I must use streamreader to read text file line by line into array.
Here's what I've got.
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim numbers() As Double = New StreamReader(txtfile.Text)
Dim numbersarray() As Double
[Code].....
View 10 Replies
Mar 25, 2011
I have a text file like below;
606;16
101 GAZ MET.MED. - VIC.BRANESTI 2011-01-11T11:00:00
102 BRASOV - TARGU MURES 2011-01-11T10:30:00
[code].....
View 1 Replies
May 4, 2009
I am trying to read a PDF file line by line using PDFBox.This is the first time I have ever attempted to do this with a PDF so I am not sure what I was expecting but I thought I would end up with some "mark up", which I could use to parse the lines I was looking for out of the file.
Anyway it didn't work out the way I had planned and I am not sure if that is because I am using the wrong tool or not using the right tool correctly.I managed to extract the text but I didn't really see any mark up that would be usefull to parse the file. Does anybody have any experiece with extracting test from PDFs. What tool(s) do you recomend?
View 4 Replies
Mar 29, 2012
I am quite new in VB NET, after VB. and unfortuantely I had to copy paste and merge the code fragments from some tutorials.
I have a folder including 200 eng files which can be opened by notepad. And each file has around 4000 row; with 60 field seperated by coma. I need to read specific row-field value at each files.
Now what I can is:
a) reading individual txt files and find specific value
b) listing all of the files in the folder
c) I can merge (a) and (b) and read all the files automatically, but since ram is continuously increasing, and at one point (sometimes 163, sometimes 169, or 170. files or something) it gives an error as "System.OutOfMemoryException". My ram is 4 GB and when I get this error the ram is increasing to more than 3 GB.
1- Could it be happen because of being eng files instead of regular txt files?[code]...
View 1 Replies
Dec 14, 2009
how can I read data in a file line by line..for eg in my project I have to store movie information in a file and every movie's info has to be in one line..this is my code for file
Private Sub btn_Read(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
sw.Close()
fs.Close()
fs = New FileStream(filetxt.Text, FileMode.Open, FileAccess.Read)
[code]....
View 1 Replies
Aug 21, 2011
how to read a simple text file line by line like when you're writing to a file with System.IO.StreamWriter where you write to the file line by line.
View 5 Replies
Apr 11, 2012
if i want to read from txt file called "students" line by line and after reading each line, I want to split the information To make sure a user or not
[Code]...
View 1 Replies
Dec 1, 2011
How would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
[code]....
View 9 Replies
Sep 6, 2009
How to copy RichTextBox to an array line-by-line and back to another RTB From that array?
View 2 Replies
May 16, 2012
How do i read through a textfile line by line checking for and removing duplicate values?
View 1 Replies
May 8, 2011
I am developing a program where i will download and save an xml file from a url as abc.xml. I open the abc.xml in a datagridview with a dataset without problem.I am confused how can i read raw per raw the datagridview and assign the data in a database table? i am using vb 2008 + msde2005 express.I show the whole content of the xml file in the datagridview with the following [code]I dont know how to create a loop where i can read the datagridview line by line save data in variables (ex.strings) and save it in a databese table?
View 6 Replies
Aug 29, 2009
1 I have a list box that has url's in em now some of this sites I'm intrested in reading news so what I want is this
When I click button i want my program to check urls that I have inb my list box and if the website has word News I want that to show up in my program by eather 1. display News found in my url list box next to the url that has word news on site or 2. if it finds news for my progy to refresh the page and only leave me resaults that have words news on it's website so basicly it has to read 1 word from site if it finds that word I want it showing next to url or I want it for it to auto refresh my list box and only live me resaults that have words news in it
View 1 Replies
Mar 17, 2011
I am writing a tournament program for a trading card game. I want my list box to have "Player 1 vs. Player 2" in one line of a list box and i want it so there is no way duplicate Players can be in the list box. Is there a way to code that or do i need to use something else?
View 9 Replies
Jul 7, 2010
I want a textbox's text to be moved line by line to a list box.
textbox1.text:
car
bike
future listbox text:
car bike
View 5 Replies
Jun 6, 2011
i have an apllication that reads from a textfile. (the textfile is .sql)[code]i use streamreader the read the txt file. if i only have line the app doesnt crash but more the one line is getting stuck.so can i read each line seperate and procces that line.
View 4 Replies
Oct 10, 2011
Im trying to create a program which can edit/read the textbox line by line.[code]...
View 1 Replies
Nov 17, 2009
I have a multiline textbox from which I would like to read each individual line and store it in an array. I don't want to store each carriage return, I want the line itself.I have been using this, but it only records lines followed by carriage returns.
Dim arra() = txtReceipt.Text.Split(Environment.NewLine)
Here is a visual example: [URL]From that top right textbox, I would want arra(0) to be "Type some stuff here (and hit the return and" and arra(1) to be "tab keys...)"
View 4 Replies