Use Filestream And Streamwriter / Streamreader To Have A Simple Text Box?

Oct 21, 2009

I am trying to use filestream and streamwriter / streamreader to have a simple text box where the text entered is written to a text file, and then a button can be clicked to read the file and present the text back to the textbox. It works, but the problem I'm having is that if i change the text to something smaller in length (less text) than what is currently in the file, then press the button to read the file, it still contains some of the old text that was previously in the file.

Dim strmReadFile As New FileStream(txtPath.Text, FileMode.Open, FileAccess.Read, FileShare.Read)
Dim readHandle As New StreamReader(strmReadFile)
'read the entire text, and set it to a string
Dim streamFileContents As String = readHandle.ReadToEnd()

[code].....

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[vb2010] FileStream.dispose Disposes Also A StreamReader?

Jul 25, 2011

If I write this

Private Shared Function LeggeLogFile() As String
Try
Using fs As FileStream = New FileStream("MFile", FileMode.Open, _

[code]...

the second cose is correct? Exiting the Using routine I surely dispose both sr and fs?

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Handle Concurrent File Access With A Filestream/streamwriter?

Dec 10, 2009

I am writing an audit file that is writing the username, time, and the old/changed values of several variables in the application for each user when they use my application. It is using a FileStream and StreamWriter to access the audit file. All audits for each user will be written to the same file. The issue is that when two users are updating this audit file at the same time, the "old value" of each of the variable is mixing up between the users.

Dim fs As FileStream
Dim w As StreamWriter
Public Sub WriteAudit(ByVal filename As String, ByVal username As String, ByVal oldAddress As String, ByVal newAddress As String, ByVal oldCity As String, ByVal newCity As String)

[code]....

This lives in an AuditLogger class, which is referenced via an instance variable (re-allocated each time the function is accessed).

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Using StreamWriter And StreamReader?

Jan 18, 2009

using the StreamReader / StreamWriter code. I want to store a new password in a .txt document that will later be printed. Here is the code I have so far. The code runs but I cannot find the .txt document.[code].....

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Communications :: Using Streamreader And Streamwriter?

Jul 16, 2008

I'm trying to use streamreader and streamwriter to get the data sent and received. For some reason the data isn't sending or receiving?

Server

Code:
Imports System.Net.Sockets
Imports System.Text
Imports System.Threading
Imports System.IO

[code]....

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VS 2010 StreamReader And StreamWriter?

Nov 10, 2010

I am using streamreader and streamwriter to read a text file , change the text, then write to the same text file. This all happens in a loop every second or so.Currently I use:

Dim csetpointfileread As New System.IO.StreamReader("C:webcsetpoint.txt")and Dim csetpointfile As New System.IO.StreamWriter("c:webcsetpoint.txt", False)before every file read / write operation, it gets dimensioned every loop. To me this seems like a waste, and should only have to be dimentioned once. If I try to run both statements in the beginning, outside of the loop, the second statement wont work because the "file is allready open". Am I missing something or am I doing it correctly to begin with?

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[2008] StreamReader To StreamWriter?

Jan 19, 2009

I have this code to send all line of a txt file to a listbox (StreamReader).

Dim sr As New IO.StreamReader("Items.txt")
Do Until sr.EndOfStream
lstItens.Items.Add(sr.ReadLine)

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Delete Lines From A Csv Using Streamreader Or Streamwriter?

Aug 14, 2010

I am writing a click event to delete an item selected from a list view which will utlimately be deleted from the csv file the information is coming from.Currently I am having streamreader read each line and then replace the selected line with a blank line. This creates blank lines in my csv files. Is there a way to delete a line using sr or sw without creating blank lines?Or is there a way to have them read/write a file skipping any empty lines?

My
If ListView1.SelectedItems.Count = 0 Then
MessageBox.Show("Please select a class from the upcoming schedule list.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
Else

[code]....

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Streamreader/streamwriter Won The Bottum Up - Sorted?

May 19, 2009

I have a text file like this, my streamwriter put the new line a the buttom:

19-05-2009 21:53:30 DESKTOP-XPPer Søgte på Crpnr 3
19-05-2009 21:53:36 DESKTOP-XPPer Søgte på Crpnr 3
19-05-2009 21:53:44 DESKTOP-XPPer Søgte på Crpnr 1
19-05-2009 21:54:36 DESKTOP-XPPer Søgte på Crpnr 1

[Code]...

i am a newbie and started in 2009 trying to learn some coding in Visual Basic.

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VS 2008 StreamWriter And StreamReader With TreeView

Dec 28, 2009

I'm creating a text file and, among other things, I need to write the text of the parent and child nodes of a TreeView to the file. I know how to write the contents and read them just fine, but what I can't seem to figure out is how to write the contents if I don't know how many parent nodes or child nodes there are. When I do, I usually do the following:

[Code]...

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.net - Read And Write Into A File Using Streamwriter And Streamreader?

Jun 2, 2011

I am trying to read the content from a .csv file and storing it in a variable. Later I am writing that content into a newfile. Code is executing successfully but the data is not appearing in new file. Here is my code:

[Code]...

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Cannot Read Special Characters With Streamreader / Streamwriter

Nov 23, 2009

To automate mailmerge function in word, i need to join different elements to complete the mailmergedatasource. In one of these file are words with special characters like ©, §,¨, .... When openng these files for reading, streamreader transfoms the characters to unreadable signs. When i give a type to use to open like ASCII, Unicode,it works for one or tho characters but not for all. I have the same problem when the character is read correctly, with streamwriter output to a textfile. Word cannot read the textfile and ask to define which type of coding should be used. In most of the cases not all the characters can be converted to readable characters.

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Publishing Vb Application With StreamReader/StreamWriter .txt Files

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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Streamreader Or Streamwriter - Ignore Line Depending On Contents

Apr 1, 2009

Not sure what to use or how to use it. But I would like either streamreader or streamwriter to ignore a line depending on it contents.

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VS 2008 Online VB Networking - System.IO.Streamwriter And Streamreader

Jan 14, 2010

I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?

I now have already this into my login form:

Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A

[CODE]...

Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.

Code here:

Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter

[CODE]...

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StreamReader And StreamWriter - Invalid Character Result After Reading Zurich

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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StreamReader/Writer - Loads An Entire Text File Into A Streamreader Variable

Jul 9, 2009

I'm writing a program that basically loads an entire text file into a streamreader variable, then reads this variable line by line and parses and writes a line into a new text file. I'm VERY new and my knowledge is mostly self-taught, but I can't seem to get out of this one. It works for smaller files, but it appears to reach a limit in characters at some point because in a file of 900 lines, it stops writing about halfway through 800 and there are no errors, the program actually completes and the message box pops up.

There are a few things with this code I already know I should fix, such as creating the new text file name, it's messy, I just don't know how.

Private Sub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim IndexValues As String()

[CODE]...

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ListBox & StreamWriter & StreamReader - Reads All Line Of The File And It Add An Item In ListBox For Line?

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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.Net "Access Denied" When Creating A New FileStream To SQL Server 2008 FILESTREAM?

Nov 25, 2008

The goal is to write data to a SQL Server 2008 FILESTREAM file using VB.Net. An "Access Denied" message occurs when creating a FileStream object in the code(see red underlined code below). SQL Server 2008 is configured to "Allow remote clients to have streaming access to FILESTREM data" along with "Enable FILESTREAM for Transaction-SQL access"... What configuration setting is missing and causing the "Access Denied" message? Figure 1.) Code used to stream data to SQL Server managed file

[Code]...

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Streamwriter And Strange Charactors - Opening The Streamwriter With Different Character Sets As The Third Parm?

Apr 21, 2010

I am taking in two html files and creating one out of them. To do this I am opening the first html file and not writing out the closing </body> and </html> tag and opening the second file and not writing out the corresponding opening tags, as well as the <style></style>section. I start a streamwriter, and write the lines out to it, and then close the streamwriter. My problem is that the output file is filled with strange characters. I've tried opening the streamwriter with different character sets as the third parm, but all this does is change the characters to different strange characters.It says charset=windows-1252 at the tops of the input files (and the output files for that matter - since I'm just reading stuff in and writing it out - with the exceptions mentioned above).Questions;First, do you think I am properly approaching appending two .htm files together?Second, how can I eliminate these strange characters.

[code]...

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FileStream Was Not Writable Error - Remove The First And Last Lines From A Text File

Jan 20, 2010

I'm trying to remove the first and last lines from a text file. Obviously the last line will be at an undetermined position (i.e. line 50 or 5000). I couldn't figure how to remove the lines, so I wrote code that would rewrite every other line:

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Streamreader Limits - The Streamreader Works Fine Until The File Is More Than 100,000 Bytes Long?

Apr 19, 2011

I have a problem with a streamreader in visual basic 2008.I am updating a database from text files on an ftp server. The streamreader works fine until the file is more than 100,000 bytes long.It reads until it reaches this point and then just ends. No error message, it just reads to this point which happens to be 2 fields out of 6 in the database stream. My question is - does the streamreader have a limit? And if so what is a workaround?

Dim connString As String = "Data Source=" & pDataBase
conn = New SqlCeConnection(connString)
Dim strQuery As String = ""[code]......

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Appending Text Using StreamWriter?

Feb 16, 2009

This append feature does not seem to work. I've looked in many places to no avail. The other examples below for writing and reading seem to be going fine.

Private Sub ApFile(ByVal textFilePath As String)
Dim objWriter As System.IO.StreamWriter = file.appendtext("textTBD")
objWriter.WriteLine("textTBD")

[code].....

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Getting Streamwriter To Write To A Text File?

Sep 3, 2010

encountering a problem when trying to write data to a text file. If I put the output into a messagebox I can see it, but when I attempt to write it to a file it is just blank. What am I missing here? EDIT - This is just a simple winform that I specify a path to a local HTML file in Textbox1 and I'm attempting to parse some HREF tag data.

Imports System.IO
Imports System.Text.RegularExpressions
Public Class Form1

[code]....

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StreamWriter Add Row To Text File DataFile?

Sep 26, 2011

I need to add a row of data to an exisitng TextFile that is in Tba delimited format. My program currently used ADO to read and update the table but that was creating to many problems with varying 3rd party providers of the Text File.

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StreamWriter Not Writing To Text File

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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StreamWriter Not Writing To Text File?

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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Returns In Text File Using Streamwriter And Reader?

Mar 25, 2011

Here's my code to add new lines to my text file:

[Code]...

When the button is pressed the line is written to the file just fine, but if I restart my application, which calls Refresh_OtherLog() onLoad, it displays the lines of the text file as one line with the traditional square character depicting a character return. Why is it not putting that new lone as a new line in the listbox?

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StreamWriter - Doesn't Show The Text Box Items

Nov 1, 2009

When i tried to run this code, it doesn't show the text box items on the text_1.txt. Its only show the tester1, and tester2 as in the quote. What did i miss out?

[Code]...

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StreamWriter - Editing Resource (Text) Files

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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