VS 2008 : Writing Text Files Using StreamWriter?
Nov 24, 2009
I'm getting a problem when writing text files using StreamWriter. The files read fine and they write fine if I'm not overwriting an existing file. They also write ok as long as I'm not writing over a file that only has one digit at the end of the name. For some reason when there are 2 digits at the end it crashes when I'm trying to save over an already existing text file. Here's my code.
StringForTextFile = "C:" & Folder4PS & "" & IDCodewDashOrN & "Series" & Series & "ScreenNumber" & ScreenNumber & ".txt"
LblTesting.Visible = True ' Testing
LblTesting.Text = "StringForTextFile = " & StringForTextFile
[code]....
above but 've tried all the different Encoding possibilites. Unicode, UTF32, UTF8, UTF7 as well as without those parameters listed where the close parentheses is right after StringForTextFile. I get the same result. If I'm writing a new text file that doesn't exist, then no problem or if I'm writing over an existing text file but it has 0 to 9 at the end then I'm ok but if I'm writing over an existing file and there is 10 or above(haven't tried triple digits or all values) then my application crashes. You see the test label in the code above because I was looking at exactly what file it was trying to overwrite and it is just as it should be.
Should I be using a different procedure? An example of a string that would cause a crash for the string StringForTextFile would be:
C:Name of My AppSeries1ScreenNumber10.txt
If it was being written for the first time then no problem or if the 10 at the end was 0 to 9 then no problem also. I've also tried and originally had it set up where there wasn't an If File.Exists(StringForTextFile) = True Then statement. It just always used the same code whether writing or overwriting and I wasn't having a problem that I remember. For some reason I started having a problem recently and I put the alternate methods of writing in.
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Oct 19, 2009
In the following, Response.Write poduces the expected result of displaying user name and password - but nthing is written to the text file (colocated in the root directory).[code]...
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Jun 12, 2011
In the following, Response.Write poduces the expected result of displaying user name and password - but nthing is written to the text file (colocated in the root directory).
Imports System
Imports System.IO
Partial Class getCustomer
[code]....
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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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Jun 24, 2011
I am coming across a lot of odd and annoying problems in this program and have almost had enough lol.
I cannot figure this one out for the life of me. I have used streamwriter a hell of alot of times and never once experienced this. But basically I have a string array and I need to write the entire array to a text file with a new line for each array item. So I have gone ahead and done this:
[Code]...
However the outcome is the text file only contains 1 line and that line is the last item in the array yet I know the array has got at least 50 items in it.
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May 28, 2009
Problem 1: I am running into a problem with my program that when UAC is active on Vistaaccess to C: and Program Files is not allowed. My program writes text files as a user types. Is there a safe place to write files to that may be some sort of standard instead of throwing files all over the place? Like maybe somewhere in the user's default folder's or something?
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May 29, 2011
I'm working on my very first VB 2008 Express program, having a little bit of experience with VB 6.For my first VB 2008 program, I'm starting out simple. I have two text boxes, named Title and Director.You input text into each text box.I also have a button named GENERATE, which generates a text file named c.est.txt and stores the text box material.[cod]I know how to do this with VB 6, but not with VB 2008, and my research hasn't come up with an explanation of how to format this correctly.So how do I revise this code so that there is a line for each text box string, how do I get rid of the System.Windows.Forms.TextBox stuff and replace it with my own headers, and how do I double-space between lines?
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Aug 3, 2010
All right, here's my issue. I have a resource that is a text file. I'm trying to use a StreamWriter to edit it. I've done it in C# but can't find my example files.
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Feb 19, 2009
I have this procedure that is supposed to write out all the records in the dataset to a text file.
When I check the # of records in the dataset, there are 10813, but the procedure only writes 411 records to the file.
Private Sub btnDoItBest_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDoItBest.Click
Dim dlg As OpenFileDialog = New OpenFileDialog()
[Code].....
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Jun 15, 2011
I'm trying to write a file and I have this code so far.
Dim File As System.IO.File
Dim Write As System.IO.StreamWriter
Write = File.CreateText("C:UsersJoshuaDesktopCreation.txt")[code].....
When I run the code, the file is created but is blank. I can't find where the error is.
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Oct 4, 2010
I am writing a little utility to generate some SQL files. I have a file which is generated from a string array of 400+ elements. It stops writing (without throwing an error) at arround 1000 characters or 380 lines. I am clearly missing something here. Question is what? I've tried (the remed lines of) flush but that seems to have no effect.[[code]...
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Oct 26, 2010
I have an issue with StreamWriter class. Basically, in an application running as a web service, I need to write info into a log file. When I send 2 web service calls simultaneously, the entries created in the log file are not correctly written. For example,
in call #1, ID 1 - xyz is to be written to the log file. In call #2, ID 2 - abc is to be written. When I viewed the log, it shows ID 1 - xyz & ID 1- abc. Looks like there's some memory data being shared and mixed together, even though it's totally 2 separate web service calls. From my understanding, each call (i.e. each will be process under a different application instance) should have its own set of memory allocation for data processing... If I am to make this application as a Console Application, it looks like everything is processed correctly.
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May 25, 2009
im writing the contents of a few arrays to a file using StreamWriter, and am having issues with the syntax of the format function. Tried reading through the help files to no avail, can anyone possibly explain the syntax to me?
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Jun 30, 2009
I'm working on a program where i need to create a text file and write in it. I created the file and I'm capable to write in it but my problem is that i'm not able to write text on the same line. Imagine you have 2 textboxes, the first is tb1 and the second is tb2. how can i write then content of the 2 textboxes on the same line in the text file?
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Mar 11, 2010
Input File to read:
SAMPLE NO: 10S-02013
Moisture 10.1
[Code]....
I am not getting the right output I need, as whenever it reads a line, it looses my sample numeber.
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Mar 3, 2009
so i have it so that the user input three initials and presses an enter button. Then it goes into a listbox where theusers initials and game score enter. I then have it transfer to a text file. all this works but i need some code toun through the text file and arrange them from highest to lowestheres my current "HighScore" codei know its going to be a for loop but im a beginner in vb and it would be so much easier in java button1 is the enter buttonbutton2 is the save button that saves to a text file
Imports System.IO
Public Class HighScore
Dim objStreamWriter As StreamWriter
[code]......
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Mar 11, 2012
I am having difficulty writing to cvs files. My application is a text parser that scans a txt file, removes punctuation, and then stores the individual words in another txt file for later analysis. My end aim is to process txt for semantic similarities. I'm very new to this so my code is very chunky But I'd really like to pull each sentence from txt file, put into an array, and then place each array item into a CSV file with commas between words. [Code]
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Jul 30, 2009
I am witting an app that will generate batch files to do an unattended installation of a share point 2007 farm. I already have a batch file I use and it's pretty big. I copied and pasted the content into my application, and I'm using the System.IO.StreamWriter to write to the batch file from the winform. [code]As you can probably guess, I'm doing all of this in my mainform code window. There are maybe 3 or 4 batch files that will be generated based on the selections made on the form. For example, I'm generating a batch file to create the OU, Group and service accounts the farm will use in active directory, I'm creating a batch file for all of the variables that will be used for the additional batch files created, etc. How can I split this up? is there a way to create the batch files without having to actually copy, paste my existing batch file content into the mainform code window? I'm using file.writeline on each line of the pasted content by the way.
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Oct 12, 2011
I have seen a few different ways of Reading/Writing Text files. What i am trying to achieve is a simple debug file in the most efficient way possible. Currently I have....
If System.IO.File.Exists(debugpath) = True Then
Dim Debugwriter As New System.IO.StreamWriter(debugpath, True)
Debugwriter.WriteLine(debugwrite)
Debugwriter.Close()
[code]....
1. Do I have to close and reopen the file each time I want to write to it.
2. In vbscript I would simply open the the file at the start of the script and close at the end is the same possible here.
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Jan 23, 2012
i have started programming a diary sort of program. i have a home form which takes you to other features. im not sure if there is an easier way to do this but the view is week by week with a new week on a new form. and on each form i have a separate text box for each day. using the code:
'In the form load event:
txtMonday.Text = My.Computer.FileSystem.ReadAllText("DayMonth.txt")
'In the text-changed & form closing event:
My.Computer.FileSystem.WriteAllText("DayMonth.txt",
Monday.Text, False)
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Sep 1, 2009
I have created a code in VB.NET to read data from text files. Data is read from a list of files, where each file is changed using a for loop. Data is written to a new text files. Each file is read one by one and written in the same way. Now, my speed of execution is very slow. I am using a Quadcore processor with only 20-30% of CPU utilization when my code runs. Is there anyway I can increase the speed of reading and writing? To read only 125 files it takes 10 minutes or more, which is very slow indeed, because in the end I need to read thousands of files and write them. Each file is approxiamately 30-50kb.
Here is my code.
Public Sub ReadRMRDataFileIntoTextFiles()
'Read in the customerids once up front
Dim customerids As Collections.Generic.List(Of String)
[Code].....
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Jan 16, 2012
so I want to make a button in one of my programs that writes text to a file. I know how to do that part. I use:
[Code]...
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Jan 29, 2010
I'm trying to use StreamWriter to write to a text file; it creates the file fine, but when I open it up, it's still empty. I marked the code below where the writing action takes place.
vb Public Sub BHorse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BHorse.Click
Dim oMarketsReq As New BFExchange.GetAllMarketsReq
Dim oMarketsResp As BFExchange.GetAllMarketsResp
Dim BFWrite As System.IO.StreamWriter
BFWrite = IO.File.CreateText("C:Datamarket.txt")
With oMarketsReq
[Code]...
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Jan 31, 2011
I've made sort of a "Game"
I want to add an Item to all accounts. I know HOW to write into files and add the item but it's adding it to ALL accounts.
Accounts Dir: C:DatabaseAccounts"Username"Items.txt
Without adding EVERY Account file as a streamwriter how would I make the streamwriter do all available directorys for the account's name.
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Dec 4, 2011
I am writing code in hopes to develop a template for estimating the cost of concrete driveways. The program is going to take information from several box's on the form then save some of the info in a ".txt" file. Next I want to be able to print off the ".txt" file without reformatting it. This is where i am having my troubles. I can retrieve my file but its all in one line. Is there a simple way to add a carriage return?
[Code]...
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Jul 12, 2009
My application creates a file by writing to System.AppDomain.CurrentDomain.BaseDirectory() & "data/" & filename...Now this works fine usually, but I just added a setup utility to the app, so now it installs to the program files directory. It installs correctly and creates the data folder, however when it tries to write the file it gets an exception "unauthorized access".
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Aug 19, 2009
I have a problem when writing some text to txt files.Here is my My.Computer.FileSystem.WriteAllText("test.txt", tekst, False)where tekst is a string variable.
When opened in some HEX editor, test.txt begins with 3 unwanted characters - ASCII values: EF BB BF. Notepad isn't showing them.
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Mar 9, 2009
I want to create files based on the particular value of supplied recordset using the StreamWriter at RunTime. The files will be dynamic these will be create based on particular field.Example: If I have list of employees, I don't know from which city of the country they came from. I want to create a different files for every city and write those employees in to the corresponding files at runtime.
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Jan 5, 2011
I have a Windows Forms application that is filtering out Visual Studio solution files.
I have the code thus far to search and find the correct files and to differentiate between VS2005 & VS2010 solution files.
Now I need to write/save these files so that I can retreive them all from the same location. I need to use Streamwriter but am not too sure how to code it.
I have included my source code so far and code for the Streamwriter write and save?
[Code].....
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Mar 4, 2012
In my code I've allowed used to create their own mazes and save them, under whatever name they like. I've also included a few pre-created mazes. The mazes themselves are saves in .txt files in the bin/debug folder of the project, along with a .txt file containing the maze names.
I really need to publish this program to send it to my teacher, but when I publish it it doesn't include any of the .txt files in my bin/debug folder.
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