File I/O And Registry :: Reading A Textfile And Sorting Things Out?

May 11, 2009

I have a txt file, that i want to read into my program. The problem is this:The textfile is a stats file for a game and looks like this:

Code:
ip:port wins username points
ip:port wins username points
ip:port wins username points
ip:port wins username points
ip:port wins username points
etc.

The main thing i want to do is sort these things out and then add to mysql database table that would have these columns:

Code:
ip authid wins username points

So what i wanna do is splitting this textfile data up and then adding everything to a mysql table.

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File I/O And Registry :: Line By Line TextFile Reading?

Mar 5, 2009

I'm making a program which has 7 textboxes. I intend the program to be used for classes in school, so the text would be like 2D Art, Geology etc... whatever your classes are. I have figured out how to use the streamwriter to take the text in the textboxes and write them to a .txt file however, my issue is with loading the text from the .txt file back into the textboxes. I did figure out how to write it so that all the text in the .txt file is loaded back into textbox1 but I have 7 textboxes... Here's the coding for the Load button:

Private Sub Button46_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button46.Click
Dim MainWindowLog As String = "V:Users(O.o)~(--_--)~(o.O)DocumentsVisual Studio

[Code].....

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File I/O And Registry :: Strange Chars In Textfile?

Nov 29, 2010

I write one line of text to a file and when I looked into the file I see three chars which I did not write

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File I/O And Registry :: Reading Multiple Keys From The Registry?

Aug 27, 2008

I am writing an application that connects to a specific com port. This com port can change depending on how many physical ports are on the PC, and if other USB devices have installed com ports before this one.

I have the communication to the com port all working great, but I need to get the com port description not just the "COM#" which is all I currently get.

I found in the registry where the description is stored but am having trouble doing what I need.

In this key:

Code:
HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4D36E978-E325-11CE-BFC1-08002BE10318}

there is a varied number of sub keys. The are numbered 0000-NNNN depending on how many ports you have. Inside each of these keys, there are multiple values, although I am only interested in one or 2 of them.

My problem is, that I do not know how to get a list of the subkeys (the 0000-NNNN keys/folders) from the original key I posted. I have looked through a few registry tutorials, and I can view the default value in the listed key, but I could not find how to list the subkeys of the listed key.

Does anyone have any sample code they could share that shows how I can get a listing of subkeys, and then run through those subkeys checking for a specific value in one of the strings contained in the subkey?

I am using VB.net 2008 and Windows XP.

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File I/O And Registry :: Each Line Of Textbox To A Newline Of Textfile?

Aug 24, 2009

i know i have to use a loop to get each line of the textbox onto a newline of a textfile but i dont know how to figure out how many lines of text the user has entered into a textbox. I tryed using a try statment to loop until it errors, it seems to work sometimes but other times it only takes half of the textbox and adds it to the textfile. And if atmaweapon reads this, i tryed to make better names for variables. Here is my code,

Code:
Path = ("Meals" & ComboBox1.SelectedItem & "" & TextBox1.Text & ".txt")
File = New System.IO.StreamWriter(Path)
If ComboBox2.SelectedItem = "1" Then

[Code]....

how many line of text there are... im not so shure how good it is to run a loop tell it errors for a textfile, but its the only way i could think of.

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File I/O And Registry :: Import Textfile Using Schema.ini And Concatening Fields?

Nov 22, 2009

I have written an import routine, that imports a textfile into a database table, using a schema.ini.In the input file, 3 fields are seperated, that should be concatenated in the import-routine. Does anyone know how I can make that happen...Small part of the import-routine, first lines are the last lines of the programatically created schema.ini.

Code:
PrintLine(intFile, "Col11=mededelingen1 Text")
PrintLine(intFile, "Col12=mededelingen2 Text")

[code].....

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Debugging To Text File Then Reading Textfile To Textbox

Oct 24, 2011

I've setup a TextWriterTraceListener which outputs the debug messages I've written to a file.This works fine however what I am trying to do know is output the content of this file to a textbox using a streamreader object.I originaly thought it may because I did not set the text file to allow read/write access so I changed this by setting the following:[code]

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Write To Textfile - Reading The File And Storing It In A Array

Jun 13, 2011

I have a bar cash register and have buttons for the drinks and number pad. In the program I have it working and it is reading the File and storing it in a Array. the problem i have is writing back to the part of the textfile. Here is 2 of the drinks buttons, all the rest of the drinks are the same.

[Code]...

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Reading And Sorting A .CSV File?

Feb 3, 2009

I'm a relative novice when it comes to object oriented programming..

How can I use VB.net to efficiently read a large .CSV file, store the records (rows) in a table (an Object or an Array), and then sort them using multiple keys? (e.g. sort by Last Name and First Name) After some additional processing, the output will be written to another .CSV file.

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Reading, Reformating, And Sorting An .XLS File?

Aug 21, 2009

I have a spreadsheet in .XLS format that contains more than 60,000 rows with 12 columns per row. The first column contains the person's name (Last First Middle), which needs to be split into three columns by pushing columns 2 - 12 over into 4 - 14 and making 1, 2, and 3 the Last, First, and Middle Name columns. Then the file needs to be sorted by those three name fields and match-merged against the results of a SQL query (4,000+ records), which is being generated within the VB.net program.

Using VB.net, I can read the .XLS file, parse out the Name, and save the 14 columns into a 2-dimensional Object array. But I can't figure out how to sort it because 'Array.Sort(spreadsheet_table)' will only work on a 1-dimensional table. Maybe I shouldn't be using an Object, but I'm inexperienced enough that I couldn't get DataTable to work.

I'm writing the program as a "Console Application" using Visual Basic (VB.net) 2008 Express Edition in a Windows XP SP3 environment. The following is an example of the input data:

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Sorting After Reading Text File?

Jul 1, 2009

I would like to sort out the repeating lines after reading the text file.

For example i would like to sort:

VERSION 600
LIBRARY [2009/6/15 15:02:14, 2009/6/15 15:02:14] temp.gds
UNITS 0.001 1e-009

[Code]....

How do i continue from here to sort the textfile to get what i want?

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Reading A Simple Text File, Splitting And Sorting The Contents Using Vb

Oct 27, 2011

I have managed to access and read a specific file line by line. If I wanted to split information by a comma or space and then sort alphabetically or numerically, how would I go about this procedure? Would I create a loop within the reading loop to parse the information?

Dim file As String = "C:Users est.txt"
Dim Line As String
If System.IO.File.Exists(file) = True Then

[Code].....

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File I/O And Registry :: Binary File Primer - Read The Nth Record Without Reading The Whole File?

May 4, 2009

I need to write data to a file, preferably in binary format, but I am unaccustomed with the concept. Where's the easiest place to get the basics? I could come here with a specific need, but I'm at the point right now where I am more willing to work within the confines of keeping it simple.

Here's what I know:
1. how to open a new file
2. how to specify the record length
3. how to close the file

Some specific questions:

Does the record length have to be constant throughout the file?

Can I read the nth record without reading the whole file?

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File I/O And Registry :: Reading Xml Attributes?

Aug 9, 2009

I am trying to read all the attributes, there are 3, from a single node. This is what I tried from an example I found:

Code:
Dim xl As New XmlDocument
xl.Load(XMLfile)
Dim rn As XmlNode = xl.SelectSingleNode("p1")

[code]....

I have used a messagebox to show the xl.OuterXml, I see the file is loaded.

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File I/O And Registry :: Reading A HTML File And Replacing Certain Parts?

Nov 5, 2010

friend of mine has no HTML knowledge so I'm attempting to write a program that replaces certain parts of a html file to suit his needs.I've edited the HTML file and marked certain parts with "tags" like this:

#IMAGEURL1# I have a textbox where he can copy + paste an image URL and hopefully the #IMAGEURL1# is replaced with the contents of the textbox.

So can someone please enlighten me to-as how to open a HTML file (there's no textbox to display the contents just yet, I'll add one if needed), find the specified text and then replace it with whats in a textbox.

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File I/O And Registry :: Reading TAB Delimited File Using MS Text Driver

Jun 14, 2011

I am trying to import a TAB (NOt comma) delimited text file into a DataGridView. The following code works fine if I have a comma separated file. All I have to do is change the FMT to "Delimited".It just does not work with FMT=TabDelimited. All columns are read into single datatable column. The text file is ANSI text and I have double checked to make sure Tabs are tabs and not spaces, even exported a sample Tab Delimited file from Excel.Can this even be done using Text Driver? [code]

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File I/O And Registry :: Reading .ini And Showing Settings?

May 6, 2009

I want to read 'File.ini' line by line checking if specific text exists in the file and then display on a windows form weather particular settings are turned on or off.So far this code works if "TargetText" exists but if it doenst I get an error on the code line: "If line.Contains("TargetText") Then".

Code:

Using z As System.IO.StreamReader = New System.IO.StreamReader(File.ini")
Dim line As String
' Read first line.

[code]....

It works if "TargetText" exists in a line in the file but if it doesnt exist I get the 'Null Reference Exception. Object reference not set to an instance of an object.'

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File I/O And Registry :: Reading Files By First Line

Sep 1, 2008

Alright this is what im working with. Im Working with vb.net 2003.I have (X) amount txt files in "C:Marble".In each txt files there are 3 lines.I want to read the first line of each txt file and display them in a listbox. [code] Things i need to Find:

-1 How to tell how many files are in a folder

-2 How to create a loop were it reads the first line of each file in that folder

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File I/O And Registry :: Reading From Reg. And Displaying In Listbox

Mar 6, 2010

I'm trying to read multiple values from a registry subkey in the CurrentUser key. I need to display these values in a listbox with multiple lines. I so far can only get one of the values from the subkey. I know (or at least I think I know) that I need to list the values in a string (with a possible loop), and then just display the string to the listbox. The subkey is the TypedURLs under CurrentUserSoftwareMicrosoftInternet Explorer Typed URLs. Here is my code I have so far (I did a year of basic VB as part of my Uni course).[code]

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File I/O And Registry :: Reading Text From Non-.txt Files

Apr 24, 2009

An application that my company uses stores report files with a .dat extension for use with their software. These files can be opened in notepad and the basic report information can be seen as text. I am attempting to write an app that opens and reads data from these .dat files and displays it in a checked listbox. My hangup thus far is that I can't figure out how to read the data from the .dat files since they are not .txt files. Can anyone point me in the right direction?

[Code]...

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File I/O And Registry :: Reading File 2008 Express

Nov 19, 2008

I'm new to Visual Basic. I'm trying to get this code to read a .txt file line by line. If the only thing that the line says is "B" it should add one to the intTotalBoys integer and so on with G for Girls, F for Fathers, and M for Mothers. I'm not sure why it won't work. [code]

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File I/O And Registry :: Reading From A File And Ignoring Comments?

Oct 28, 2009

I would like to read from file, and ignore lines that start with --. I know how to read line by line but i just need to ignore those lines.

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File I/O And Registry :: Reading/Writing Objects To File?

Jul 5, 2009

So I need to write out an object to a text file as well as read in objects from text files.How do I accomplish this? This is the code i've used to read and write just simple lines of text. Is there a small modification to this or just a different function i use to read in an entire object?

Code:
Dim path As String
path = "Security.txt"

[code].....

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File I/O And Registry :: Text File Reading And Writing?

Jul 17, 2010

I have just recently been using VB 2010 after using VB5. I have noticed a lot of changes. The problem I have is that I wish to open and save text files to and from arrays in the background. I've attached what I would do in VB5. I have searched around, but all the examples I find use a Textbox instead of an array. Can anyone show me how I can do this with VB 2010?

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File I/O And Registry :: Reading File Properties Without Loading File

Sep 19, 2010

I want to be able to able to read the dimensions of a TIF image without loading the entire file.

PS Using Visual Basic 2008 on Vista64.

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File I/O And Registry :: Reading All Files In 'Windows' Folder

Aug 23, 2011

I'm trying to return a integer / count of the ammount of files in the directory and sub directories in the 'Windows' folder, I need to be able to do this as fast as possible (no lag) and tell when it's done, hope I explained this right.

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File I/O And Registry :: Reading Files From A Large Directory?

Jul 15, 2009

I wrote a cleanup program to go through some directories and delete files based on if the creation date is older than say 6 months. It works fine with some of the directories I have that contain around a few thousand small files. However, there is one directory (that contains small backup files from another program) that is loaded with over 300,000 files and it locks up on me as soon as I read in the first file in that directory.I am convinced it is the directory has too many files in it to open it. The server that the directory is on is slow. It takes a half hour to open the directory while on the server itself. I know it will take forever to delete the amount of files I want to delete, but I don't understand why it gets stuck and hangs there with no error message.Here is where I get stuck. Listbox1 is the directory I'm attempting to access

For Each selectFile In My.Computer.FileSystem.GetFiles(ListBox1.Items.Item(Count), FileIO.SearchOption.SearchTopLevelOnly, "*.*")
compFile = Path.GetFileName(selectFile)

[code].....

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File I/O And Registry :: Saving / Reading Text Files

Aug 14, 2008

I require some help in saving and reading files in Line by Line format, How would I save to a specific line in the text file, or read a specific line?

[Code]...

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File I / O And Registry - Reading Certain Line From TXT File

Aug 14, 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:
Dim StreamToDisplay As StreamReader
StreamToDisplay = New StreamReader("C: esting estfile.txt")
TextBox1.Text = StreamToDisplay.ReadLine()
StreamToDisplay.Close()

Currently it's reading the first line of text (which is "[username]").
Text file (testfile.txt) is attached

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File I/O And Registry - Reading A File Which Is Being Used By Other Process

Oct 5, 2004

I have read a log file which is being used by a process. I could open the file in notepad or similar applications. The log file is not written by my application.

File.Open or streamreader gives me the following error: "An unhandled exception of type 'System.IO. IOException' occurred in mscorlib.dll. Additional information: The process cannot access the file "E:parkvbproject1.NETinsystem_log" because it is being used by another process."

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