Streamreader Reading A Specific Line?
Mar 24, 2009
i need to read a specific line of txt in a filelines 1 and 3 always stay the same ...ishline 2 will change from time to timeits line 2 i need to readi can, using seekorigin cutout line 1 "highlighted", but i want to get rid of line 3 aswellis there a way of just reading line 2? even though it could be 5 words long or 5000?heres what i have so far
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim fs As FileStream
[code]....
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Oct 15, 2011
I am currently writing a Login Script, and I am having trouble making StreamReader read a specific line in a text file. This is what I have so far (not the entire script, just the reader lines):
Dim path As String = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
Dim file As String = (path + "LogDat.txt")
Dim sr As New IO.StreamReader(file)
Dim line1 As String = sr.ReadLine(1) '' Supposed to read line 1
Dim line4 As String = sr.ReadLine(4) '' Supposed to read line 4
Dim line9 As String = sr.ReadLine(9) '' Supposed to read line 9
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May 17, 2010
when using stream reader to read text files how would i go about reading or referencing specific lines.so if i wanted to read from say line 2, 3, 4 or 10,11,12 in the textfile or what ever.
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May 2, 2012
I am looping through a text file and reading and then parsing each line.. then, inserting into a sql server. The problem is, I am getting every other line. Any thoughts? I read another post on here that is similar and it says that that person was calling the ReadLine twice... which makes sense. I just cannot spot where it is happening.
Private Sub btnUpdateRSR_Click(sender As System.Object, e As System.EventArgs) Handles btnUpdateRSR.Click
' Get RSR File
lblStatus.Text = "Getting RSR File"
Application.DoEvents()
[code]....
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Dec 31, 2009
I want streamreader.Readblock to start reading a file from a specific line, but I need some help with this.so far I have have the following example
[Code]...
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Aug 24, 2011
What I have stored in my file is values related to an account. (Just testing, not going to be used commercially). What I need is to draw the values for the username and password, by going through each new line, but .peek() doesn't seem to work for me.
My block looks as such :
public string CheckAccount(string username, string password) {
StreamReader sr;
string filename = "H:\AccountInfo.txt";
string s;
string result = "";
[Code] .....
My code doesn't read from the 2nd line onwards, it just hangs.
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Aug 18, 2011
I need to read a specific part from my text file to and show it on a text boxI have I have three text boxes.and the text file is written like this
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Aug 19, 2010
how I can read a specific line's value in a listbox.fx I want to read the value of line 4 in a listbox to add this value to an Integer, which I can subtract from another value?
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Nov 28, 2011
I have been learning VB for about 3 months now at college and decided to enhance my skills by making my own project at home. My project is basically a game where you have to guess if the next number will be higher or lower than the previous version and you can place bets on it. I have done all of this ok but I wanted to create a high score system so that you could save your score.I can manage to write out to a text file ok so that it looks like this
Highscores
Name
Score
[code]....
etc. But I am not sure on how to read in a specific line. So for example I want lblHighscore1.text to equal line 3 of the text document (as vb counts the first line as 0) So far all I have is this;
Dim objReader As IO.StreamReader = New IO.StreamReader("C:UsersKarlDesktopHighScore.t xt")
lblHighscore1.Text = (objReader.ReadLine)
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Oct 17, 2011
I'm currently use visual basic 2008. The problem is I have try this code but,it produce no output. There is no problem with the code I guess. Here is my code
Dim i As Integer = 0
Dim line As String
'Dim reader As StreamReader = New StreamReader("C:\drill.txt")
[Code]....
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Dec 7, 2009
I have a button which reads a comma separated value file and loads it into a richtextbox. Each line contains comma separated chars.
Once the file is loaded in the richtextbox, i want to be able to select specific values from each line and store them into an array.
For example:
Line1: a,b,c,d,e
I want to be able to place only the values "b" and "c" into an array.
I was thinking something like creating a menu for the richtextbox which will be triggered on right click, then highlight the values I want, press right click and select 'place these values in an array'.
it doesn't have to be the way i proposed it, but it definitely must use a richtextbox.
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Mar 11, 2010
I have a txt file that I need to read into a listview, but I need to read from a specific line in that file. Below is a sample of the txt file to read,
6400,3200,2,95.5,84,76.6,0
1,2,-20,15,0,0,0,"NO",0,0
TOTAL GPM= 6400 HWT= 95.5 CWT= 84.0 IWBT= 76.6 ALTITUDE= 0
CODE]...
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Jan 20, 2010
show me a simple code for downloading a file from internet with a URL,Line by Line with streamreader?
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Feb 16, 2010
I've been writing a weight program for flooded pressure vessels and I'm having trouble retrieving the data from the text files I've been saving. I know how to write the data to the text file, but retrieving it with OpenFileDialog is not so easy for me.The user has individual text boxes that they input strings or numbers into and when they save the file, each text box input is written to one line in the text file. For example, the first text box is for the username, therefore the first line of text that is saved is the person's name, the second text box is the customer, thus the second line in the text file is the customer name, and so on.
(Actually, the first line of text in the saved file designates whether English units were used or Metric units because when the user retrieves the saved file, English units will open one form and Metric units will open a separate form, so some If...Then statement will need to occur).I need to be able to read the first line, have either my "EnglishForm"form open or my "MetricForm" form open, and then have each subsequent line of text be displayed in their corresponding text boxes. I know I need to use ReadLine or LineInput, but I don't have a clue what to do.Assuming the syntax I've displayed below would just magically work (if only life were that easy), it would look something like this
If FirstLineOfTextInFile = "English" Then
EnglishForm.Show()
ElseIf FirstLineOfTextInFile = "Metric" Then[code]....
And so on...I read a lot of articles from the MSDN library and exhausted each link that I've looked through from Google and Bing, but most only retrieve data from the file to a single text box through some loop or streamreader and don't take into account multiple forms.
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Feb 6, 2012
I want to read from textfilesin such a way that I can
extract text in the form of strings and
figures(numbers) and then calculate their respective
percentages. I have successfully done that with VB6 but
[code].....
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Oct 13, 2010
I have the following code;
Public Sub writetofile()
' 1: Append playername
Using writer As StreamWriter = New StreamWriter("highscores.txt", True)
writer.WriteLine(PlayerName)
[code]......
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Jan 6, 2011
I'm trying to read through a large text file using StreamReader using the following code
Dim Fs As FileStream = New FileStream(Filename, FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read)
Dim sr As New StreamReader(Fs)
Dim Line As String = ""
[Code]...
The process reads through the file and then exits the loop while only a third of the way through the file.What can I do to ensure it reads the whole file?
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Dec 6, 2009
Im trying to read encrypted text from a text file but when i try to read it i would get boxes in stead of the encrypted text.
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Oct 29, 2010
I am using the following code to read a .txt file into a dataset sucessfully..I am trying to alter the code to read a .csv file into a but get an error on the [code]I read the .txt file by changing the strDelimiter to (vbTab)
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Aug 22, 2010
VS 2005 Reading .CSV File with StreamReader
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Jul 2, 2010
I'm having an issue with the streamreader. I had it working but I've changed something and it has stopped.
I have it in a Do While loop reading line by line, but it doesn't finish reading. It reads about 27 lines out of 4000, then stops.
I changed the contents of the file it was reading, but it's still just save as a txt notepad file.
I also changed how I tell it which file to open (UserSelection.T2) however it does open the file just doesn't finish reading it.
Doesn't kick back any errors, it just doesn't read the entire file.
Dim FSO As Object
Dim File As Object
FSO = CreateObject("Scripting.FileSystemObject")
[Code].....
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Aug 25, 2006
I have a "Form" with:
1- List Box
1- TextBox
3- Button
1- OpenFileDialog
1- SaveFileDialog
I want that clicking the btn1 it shows the OpenFileDialog and read file that it has got this structure: SKI10 1 71 0 0 18 101 19 0 29 101 30 0 40 101 41 0 50 101 51 0 62 101 63 0 81 101 82 0 95 101 2 0 0 95 165 3 0 1072 01 4 2 1 93 15
I want that it reads all Line of the File and it add an Item in ListBox for line.For example the first Item of the ListBox in this case is
SKI1
And the 2th Item is in this case.
0 1 7
I want using the StreamReader classes.And i want that when i click an Item of the ListBox it shows the Text in the TextBox and I can edit the Line and that clicking antoher button the Item will come updated with new Text of the TextBox.I have also another button for saving the Mod.I can use the AppendText and it create a new file writing ListBox1.Items line for line.
If SaveFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then Dim file_esistenteD As StreamWriter[code].....
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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]....
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Jun 1, 2011
i have a stream reader reading a csv comma delimited file, its skipping every second line though if i edit the file and enter blank lines in between, it reads them correctly
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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 5, 2010
I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
[code].....
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Apr 1, 2012
How can you make streamreader to split a line into two and place it on two different places of the form and how can you use streamwriter to delete/alter file contents.
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Feb 13, 2012
I am having a problem writing a string like a word "Zürich" the output became "Z�rich"
I am using StreamReader and StreamWriter.
Code: below
Imports System
Imports System.IO
Imports System.Text
Module Module1
[CODE]...
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Nov 13, 2010
How do I use line numbers? For example, I'm reading a text file and I'll need to get the line number of the line "=====LINE=====" somewhere in the text file, and I'll need to get the text of the next line (+1 of the previous line, but I'm not sure how to do readline(line number)).
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Oct 10, 2010
Im having trouble with streamreader.. It keeps locking up the debugger after the first 3 lines.. The last line being blank.. There is basically a status readout screen that updates every second or so with statistics about the Video Stream in the FMLEcmd.exe program
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