Reading All Lines In Text File To ListBox

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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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
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[code].....

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Do While readFile.Peek > -1
For loopCounter = 1 To 5
readFile.ReadLine()

[Code].....

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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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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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If the textfile looks like this:

Text1
Text2
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You could make it so on timer1 it sends text1, then on the next tick text2, and so on?

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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
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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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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
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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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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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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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Dim ary() As String
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[code]....

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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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OK here is what it looks like when it saves

[Code]...

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My code for adding items to listbox is:

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim PageElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("img")
For Each CurElement As HtmlElement In PageElements

[code].....

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I am using file.readalllines to read the file into a string, then using listbox.items.addrange and splitting by vbcrlf to insert the items. Is there a way to reduce the lag it causes for loading huge lists?

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I have some lines of text in a listbox that I need to format. The text originally looks like this (on one line):
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I need to format it (if it's more than 13 names), then add it to another list looking like this:
NET 'GND' R1-2 R2-2 R3-2 R4-2 R5-2 R6-2 R7-2 R8-2 L1-2 L1-3 L1-4 L1-5 L1-6 L1-7
NET 'GND' L1-8 L1-9 L1-10 L3-2 L3-3 L3-4 L3-5 L3-6 L3-7 L3-8 L3-9 L3-10 L4-2
NET 'GND' L4-3 L4-4 L4-5 L4-6 L4-7 L4-8 L4-9 L4-10 L7-2 L7-3 L7-4 L7-5 L7-6
NET 'GND' L7-7 L7-8 L7-9 L7-10 L2-2 L2-3 L2-4 L2-5 L2-6 L2-7 L2-8 L2-9 L2-10
NET 'GND' L6-2 L6-3 L6-4 L6-5 L6-6 L6-7 L6-8 L6-9 L6-10 L5-2 L5-3 L5-4 L5-5 .....
[Code] .....

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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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1.In my program I have 2 textboxes.In first textbox user need to put some number.Let's say he put number 10, then in other textbox program need to write numbers from 1 - 10, like this:

1,2,3,4,5,6,7,8,9,10
If he put 20 in first textbox, in second textbox it should be:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20

2.I need to do this...Import text file to listbox.Export items in listbox as text file.

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i have 5 textboxes in a form. I have a streamwriter that writes all of their text to on text file like this:

Code:
Dim xfile As String = Application.StartupPath & "/Set.txt"
If File.Exists(xfile) = True Then
Dim writex As StreamWriter = New StreamWriter(xfile)

[code]....

I was wondering how to get the text under the each number and place it in the corresponding textbox.

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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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