VS 2005 Reading Lines Of A File, Adding Them To Listbox, And Then Looping?
May 17, 2009
I have a form with a listbox. I'm adding items to the listbox through a file that I saved. When I open the file, I want each line/string in the file to go in as a separate item in the listbox. I've gotten it to work so far but only with 1 string. I need to loop the part where the file is being read to be able to add all the strings that are within the file to the listbox. How do I do this? So far, this is the code I have:
VB .net
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click OpenFileDialog1.Filter =
[code].....
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Jun 3, 2009
This is my code:
Dim lngLines As String
Dim sr As New StreamReader(opdFileAudio.FileName)
While Not sr.EndOfStream
lngLines = sr.ReadLine
If lngLines.Contains("x") Then
lngLines = sr.ReadLine
[Code] .....
At the moment I want to read all lines in text file to a list box but I don't add strings x, and string y to listbox, and looping in.
lngLines.Contains("y")
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Dec 17, 2009
Next listbox value:
1
2
3
4
5
6
7
8
9
10
11
I want to remove the first 9 lines remain in listbox:
10
11
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Oct 14, 2011
Here is my code for splitting "," from the text file. But the problem is I don't know how to include looping in the code to make the code read the whole text file. when I run this code, it's only read the first line of the text file.
Dim sr As StreamReader = New StreamReader("C:\drill.txt")
Dim data As String()
data = sr.ReadLine().Split(",")
[Code].....
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Feb 4, 2009
I'm making an app that loads external html in a webbrowser after adding some value to it from a database. But how do i add the values. the html will be somewhat like this
HTML
<html>
<head>
<body>
[Code]....
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Jan 6, 2012
I can retreive all items in my notepad but when I am adding them up in my listbox, and trying to print them in the console. I can only display two strings. I don't know why. My string is a combination of a name, space & score. ex: "luke 300". That is the pattern of all strings per line in my text file. I am separating the name and the score using space as the indicator. When ever a space is found, string before and after the space is retrieved and added to the listbox
Here is my
scorelist = New ArrayList
reader1 = My.Computer.FileSystem.OpenTextFileReader(My.Application.Info.DirectoryPath & "scores.txt")
[Code].....
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Jun 10, 2009
I am trying to create a single listitem that has multiple lines. When I create a newline using "System.Environment.NewLine" I get an empty box rather than the text going down the next line.
How can I get this to work? Currently my listitem is a custom structure. Do I need to change anything here so I can have multiple lines? Perhaps its a limitation of the listbox?
Public Structure ListItem
Private displayText As String
Private itemValue As Integer
[Code]....
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Dec 1, 2008
I am trying to read a specific line from a text file and for some reason when I set my variable loopCounter = 1 To 5 it jumps all the way down to the word "Marty" in my text file but if I just change loopCounter = 0 To 5 it jumps to where it should be which is the letter "M" right after "25". I'm trying to get it to read "25". as this is an assignment for a VB class I'm taking. My text file is at the bottom.
Do While readFile.Peek > -1
For loopCounter = 1 To 5
readFile.ReadLine()
[Code].....
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Feb 16, 2011
I use this code to read in a text file:
Quote:
Dim fileName As String = fileloc
Using reader As New System.IO.StreamReader(fileName)
While Not reader.ReadLine() Is Nothing
[code]....
THe problem is it reads in every other line.I assume its because its reading line one in the 'while' then the next line being stored during the loop....
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Feb 12, 2012
I am starting to learn reading and writing to textfiles. One quick problem. My code here
'Read is the variable that will read the kp.txt file"
Dim read As IO.StreamReader
read = IO.File.OpenText("C:2/kp.txt"[code].....
however when it is read into the listbox those 3 words appear on one line in listbox
How can i make it so that each line of the textfile is placed in each line on the listbox?
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Mar 25, 2012
I'm writing a program where there are text boxes and the user can enter info and append them to a text file as well as read from the text file and view the various entries in it. The problems I'm running into are that I have a button that opens an open file dialog box allowing you to select the file, and I want to get it to open the first entry of that file in the correct text boxes. the code so far looks like this
code:
I used to have this bit of code in there but there was a conflict with the .txt file being used more than once at the same time while it was in there.
code:
Im also having trouble writing to the file and I'm not sure why. I have an "Append" button that has this code in it
code:
and it comes up with the issue "object reference not set to to an object instance".
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Oct 26, 2009
reading a text file into an array after a certain line in the text file, at the moment i am trying to do it using the method below: but i am having trouble thinking about how i can copy everyother line and also how i can count through the array the i = 0 and i = i + 1 are there while "i".
In a line what i would like to do:I need to copy everyother line for a known amount of lines that appears after the line " I FT I KT I " in a text file, but i do not know the position of this first line in the file.
Dim lines() As String = File.ReadAllLines(sessionsPath$ & "vmcg.afm")
For Each inline As String In lines
If inline.Contains(" I FT I KT I ") Then
[code]....
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Jan 11, 2010
Does anyone know how to read individual lines off of a text file?
If the textfile looks like this:
Text1
Text2
Text3
Text4
You could make it so on timer1 it sends text1, then on the next tick text2, and so on?
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Feb 5, 2009
I am working on an app now, and I need it to read text from a .txt file, but there's more. Here's what I want it to do:
Dim text as string
Find "file.txt"
text = line1 in txt file
Do something
text = line2 in txt file
Do something
text = line3 in txt file
Do something
And so on, until there are no more lines to read. I have searched, but all that I have found requires you to preprogram the amount of lines in the .txt file. I want to be able to add lines later without having to go into the code and add more.
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Sep 22, 2011
I am new to ASP.Net and am trying to set up some content pages to work with my master page.I currently have the following text hardcoded into an asp:contentplaceholder and it works just fine. I want to read lines in from a text file to produce those headlines and retain the current formatting. I tried using the tag i need each line as a separate tag. Below is the code in the content place holder. Id like to have this done in the Page_Load or the pre Init.[code]
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Nov 14, 2010
I want to put a function that reads a text file and put it in textbox1. I used this code to read the last line
Textbox1.text = Io.file.readalllines("C:c.txt").last
but I want it to read the third line.
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May 23, 2011
Here's what i've got so far, i've written all of the data that i'm going to put into my config file, however i'm having trouble reading the specific string values that I need from that ini file. The parts of the ini lines I want to get are the values in between the I've tried using streamreader a couple things but i'm having trouble figuring that out. I need to parse each line of the ini file to get that value in between the single quotations, so that I can set the value for my richtextbox background and text color as well as a few other things that i've set up in my notepad including tab spacing and so on. lots of these different values need to be converted from a string value to integers, and boolean values as well. (4 of them, the rest of them don't have to be changed because they are already string values when my application reads them to determine it's application load settings.
EDIT: I just noticed in the preview that this is from the version of the app where I had streamwriter write "______ value=" & Something to a file. lol some of the (')s are still in this version, so please excuse that little part. I had them in, but took them out so that I could trim data to get a value easier, but I want to use (')s hopefully when all is said and done.For example, just to restate what I want - in the ini file it will read [setting name] value='VALUE'I want to be able to "get" the string value of "VALUE" within the ini file between the 2 single quotations '
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Apr 21, 2009
I'm trying to create a program that stores a users stats for their character (for something like an RPG). I know how to write more than one line in a text file, but I want to learn how to read and write text on specific lines of my file. I know that you can just read each new line individually in order using a StreamReader, such as
username.text = readLine.ReadLine()
userage.text = readline.ReadLine()
[Code]....
This is good for just displaying the stats and changing them from a constant interface, but I'm afraid that eventually I'll need to read/write specific lines, like reading the fourth line which might specify magic level, or writing a new money amount.
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Aug 15, 2010
I am in the process (slow process) if learning vb.net by trying to create a simple application that will read and write (save) chosen information to a text file. The application has text boxes (name, email address, etc) and I want to read information from certain lines in the text and place in the given text box.[code]When I start debugging mode it does not display the text until I click onto the text box and it's displaying the first line of text in the file. How do I skip the first line of text and have it display the second line (or the 6th, 24, or whatever line I need to be displayed)?Then I can start working on learning to use streamwriter
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Jul 23, 2010
I got the following code to read an XML file: [Code] Obviously the count limits the amount of lines that it reads. But how do I get it to read all the lines in the file? Ive tried removing the And (count <20) but when I run the program nothing happens.
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Oct 20, 2010
I'm getting some problems to read a text file with this configuration:
[Code]....
I want to put all 3 lines in a data grid view.
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Jun 13, 2010
I am reading from a textfile. How can I skip a line if it's empty?
Or is it possible to delete at the beginning of ReadAllLines to remove this empy lines.
An empty line would be following:
text1
text2
"empty line"
text3
[Code]....
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Jul 17, 2011
What im try'ing to do is when a ListBox item is selected and the value has been given with a NumericUpDown box and the ''Add to orderlist'' button is clicked that it saved it to a file called "orders.txt", not at startup but when the first order is made.
Some requirements:
U can't order the same thing twice ( only edit it within the editor ).
The "orders.txt" has to open on a TextBox1 at Form2 ( the text editor ).
And the user can only change the order amount in the edit program.
Example:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListBox1.Items.Add("7226218; Hemlock; 22.55; 0")
[Code].....
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Mar 15, 2009
I've been pondering upon my idea on how to create/update a text file using each item in a listbox as lines, but I fail each time. I've searched this forum as well as my friend, Google. Still nothing.
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Oct 7, 2009
I a very large text document, I need to read some lines and at the end of each line, insert a text from the header of each page to he preceding lines.I have the following code the reads the file and displays it on a list box.Public Class Dialogs..[code]
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Jun 21, 2010
Well i got my codes so Checkbox and Textbox to read ini but i cant find how to make ListBox read ini like each line in the ini is 1 item on the listbox.
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May 15, 2012
I have a program that reads a text file and creates a datatable dynamically based on the columns in the file.
This seems to work fine.
I then try to read the rest of the text file, creating a data row to add to my table. I'm using the code below but it's not working for me.
view plaincopy to clipboardprint?
Dim strFieldData As New ArrayList
Dim obj As New Object()
[Code]....
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Aug 4, 2009
1, Mulroney, Brian, 4000, 3, 259.2500, 300.00, 1265.7500, 75, 20002, Schreiber, KarlHeinz,8000, 1, 2227.0000, 2400.00, 10873.0000, 300, 160003, Clark, Glen, 4500, 0,12.3750, 337.50, 1525.1250, 75, 22504, Harper, Steven G., 20000, 3, 0, 0, 0, 0, 0so what I want to do is I wanna insert the four last names in the combobox when reading the file and displaythe data regarding each name in the listbox. so when you click on each last name in the ombobox, you can display the corresponding info for it in the list box..so my problem is1)I can only read one of the lines in the file(only for one last name). and therefore only one last name appears in the combobox.how do I read and insert the other three lines at the same time?
Private Sub mnuFileOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuFileOpen.Click
Dim FromFile As String 'To name any file that is to be opened
[code]....
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Mar 20, 2009
I need to read the contents of a text file to a list box. The coding I am using at present is:
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Jan 12, 2012
i have an XML file that i am trying to loop though. My current code does this just fine BUT it only does it for the first 2 nodes. It repeats nodes over and over again.[code]How can i loop through the whole thing while still gathing only the 2 childnodes every loop?
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