Writing To Specific Line In Text File
May 6, 2010
I am making a vb.net app and I need to know how to overight onto a specific line in a text file. For example:[code]Now, I want to completely overight the "B" to an "A" and the line I need to write on is "2" also, my application will produce dynamic text files as well so I wont always be able to know what line exactly to overight. So my question is, how do I write to a line when I know what line it is and how do I search for a specific line and overight that.
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Aug 2, 2011
i need my program to enter text into a txt file but, i can not seem to find out how to make it press enter, and i what i mean is my program adds to the text like this...[code]
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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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May 15, 2012
I am writing each line to a text file:
Dim objWriter As New System.IO.StreamWriter(filename)
For Each x In tofile
objWriter.WriteLine(x)
Next
objWriter.Close()
Which works perfectly the only problem is is that when its finished it writes a blank line on the end of the text file which I don't want.
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Mar 1, 2012
I am attempting to write data to a text file from a form.
My code is as follows:
x.Write(TextBox1.Text)
x.Write(TextBox2.Text)
x.Write(TextBox3.Text)
x.Write(Textbox4.Text)
x.WriteLine()
x.Close()
I have x.writeline() which writes a new line to the text file. However when I add all four textbox values they appear as follows:
Textbox1Textbox2Textbox3Textbox4
But I want it to look like:
Textbox1 Textbox2 Textbox3 Textbox4
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Aug 5, 2011
I have the same problem that Niphoet had in this thread: vb .net overwrite a specific line in a text file
I am trying to implement the code that Axarydax showed in C# that I am trying to translate to use into vb.net. My problem is that the code will make my new text file but will not write any of the lines from the other text file to it and just leaves it blank. I think my problem is with the while loop statement but I am not sure.
[Code]...
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Sep 22, 2011
I've got my self in to a pickle here.I'm trying to do something I used to do in basic? At-least I think you can do this in Basic, you know Qbasic,What I'm trying to do is put 4-8 strings on to one line separated by a comma.Example might be:
writer.writeline (bob1, bob2, bob3, bob4) Out put might look like Test, Test2, Test3, Test4
I'm tried looking in to formatting of writeline/write, but I didn't get any where with it.
Also if this is possible- I would like to be able to read it just like :
reader.readline (Rbob1, Rbob2, Rbob3, Rbob4) If anyone cold just point me in the right direction, I'm sure I can figure it out - If not... Well I will ask another question.
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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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Sep 12, 2009
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
18N879 P141 120461, 49324 39MIL;
PMC3_270_ETH1_D0+ P3021 8061, 44624 39MIL;
I have lines like above in my text file. I have write all this value in another text file by adding the title. In my original file's line I must check whether the line contain any MIL value if not, I must write first T1 the below T1 I must write all the line which not contain MIL value until I reach a line which Contain MIL value. If the line contain 39MIL the I must write first T5 then followed by all the line which contain 39MIL until it reach the line which contain another MIL value. Let say 50MIL. the I must write T7 then followed by all the line which contain 50MIL. I sort my original file already. so the original file will start from the line which dont have MIL to 39MIL,50MIL,75MIL and 100MIL.
My output file will look like this:
T1
GND P3559 9812, 7993 p9910.26;
TERM_RX3_2- P3347 41621, 2965 j22.49 50MIL;
58N895 P169 62611, 96124 50MIL;
ITP_TMS P200 67411, 49624 50MIL;
63N674 P175 20911, 34124 50MIL; .....
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Sep 11, 2009
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
[Code]...
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Jun 8, 2011
I am reading a text file line by line using StreamReader.Readline(). After reading a line i have to check whether some fields of the line which is read are present in the rest of the file or not. What i am doing is that after reading a line from the file i am passing the streamreader to check whether there are multiple entries. i am trying to use line.Length() to get the length of line, so using this length i can go back to the line
my code:
Dim pos as Long
sr = File.OpenText(filepath)
While sr.Peek() <> -1
[code]....
my problem is that it is not giving me the expected line or it is skipping some part of the line.how can i return back to my line?
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Jul 26, 2011
i am reading a text file line by line using StreamReader.Readline(). After reading a line i have to check whether some fields of the line which is read are present in the rest of the file or not.What i am doing is that after reading a line from the file i am passing the streamreader to check whether there are multiple entries. i am trying to use line.Length() to get the length of line, so using this length i can go back to the line
my code:
Dim pos as Long
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Aug 8, 2009
My text file look like this[code]...
I want to extract those lines according to value in ( ).
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Aug 12, 2009
I was wondering how I would go about replacing a specific line of text with different text, and then later reading a specific line of text (from the same file). The text file has a lot of lines, and basically the layout is like this:
Something1 Data I want to read
Something2 Data I want to read
Something3 Data I want to read
Each line has a specific word, and then after that word is the data I want to use for the form.
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Jan 12, 2010
How to read from a line in vb .net, I need to do the following:
change the line in a text file
[Path] = "c: hiscertainpath"
With this line
[Path] = "c: hatother
ewerpath"
These paths will most certainly be different lengths, so I need to either replace what's in the quotes or erase the line completely and enter a new one, but in the same spot, not appended to the end of the document.
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Jul 31, 2011
how I would read specific line in a text file.Is this possible, if not I would like to know so that I can make the extension in C#?
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May 26, 2009
Is there anyway to read a specific line from a text file. Such as reading the tenth line of a text file?
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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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Jan 13, 2009
I need to be able to change a path inside a document ( a config file to a program) to the current directory of the application im creating in VB so the text file looks something like
Quote:
something=234
blabla=io
ServerRoot=C:Server
i need to change c:server
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Jul 26, 2009
I have two part in text file. Let say Part 1 and part 2. I want to write part2 in different file and part 1 in different file.
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Mar 15, 2012
I know how to search a text file for a specific line, but what I don't know is then how to delete that line?My text file is set up as such:
021,Donovan,56 Eynesford Crescent,Bexley,SE5 1TR,09/08/1967,13 March 2012,Bronze
062,Fredrikson,6 Freil Road,Gravesend,GR9 TRB,12/06/1995,13 March 2012,Silver
So I know how to search for the 3 character integer at the beginning of each line, but how do I then delete this line?
I'm currently using this code
Imports System.IO
Public Class Form6
Private Sub SearchBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SearchBtn.Click
[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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Apr 30, 2009
I am trying to make the code edit the a line in a text file, but it ends up deleting all the text and add the line at the begging of the file.
Dim FILE_NAME As String = "config.conf"
Dim i As String
Dim Text(90) As String
[Code].....
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Oct 20, 2010
I need to read one specific line of a .txt file.. How do I do it?I don't know what item will be there so I can't search for a specific letter... It will be a textbox text.But I know that it will be the 3 line.Originally Posted by ExampleLorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla rutrum risus et ante tempus pharetra. Integer lacus felis, interdum non elementum in, egestas et ante. Aliquam eget nulla sed lectus accumsan congue at dapibus massa. Etiam nisi arcu, vulputate nec venenatis sed, fringilla nec ipsum. Duis quam lectus, venenatis sit amet faucibus ut, eleifend at tortor. Proin dignissim he
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Jun 28, 2010
Okay, so I've been looking on the web for a way to read only ONE line out of a text file. Recently I've gotten by by creating separate text file for each line (such as a text file named, "Username", another named "Password", instead of creating a single text file with both the user name and password.) Now I am faced with having to do this. I want a quick and easy way, VB won't let me do open file as input #1 for some reason. I just need the second line of text out of this text file. What is the quickest and easiest (and painless) way of doing this?
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Jan 15, 2012
I am writing a program that manipulates text file using console application. What I want to do is to delete 1 specific line based on the ID entered by the user.[code]My program should delete the line with the ID DR-02, but my program deletes items from DR-02 to DR-04 instead of DR-02 only.[code]
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Oct 2, 2011
I am trying to figure out how to replace text in a text file on a specific line number. (for testing, line number 4).
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May 20, 2012
I want to modify a text file. It has a lot of lines of text in it. I want to add a line after a specific line (in the middle on other lines) and write strings there.
The code i have, writes to a specific line but it also overwrites the text on that line:
[Code].....
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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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Feb 5, 2011
I have an SQL database, and 50 text files, and Visual Basic 2010 Premimum,I need to find a specific line of text in the text files and then take the next 37 lines of text and save them in my database. I need advice as to point me in the right direction
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