Find String In Huge Txt File?
Jun 15, 2010
I have a huge .txt file which contains X & Y data seperated by serialization. Each serialization contains 1K x and y data points, the text file is about lines 1,340,000 long. Sometimes I need to go into the .txt file and find certain sets of data so I can plot and overlay them which gets tedious. I am going to write an application that I can just write the serialization into a text box on a form and and it will seach all of the txt files for the right data, put them into arrays, and then load them up into excel. My question is how would I search the .txt file for the correct serialization? Would I first read it into an array and then try and split it that way, or is there a way to just open the .txt file and search for the serialization without putting it into an array first?
View 3 Replies
ADVERTISEMENT
Jun 5, 2011
I have a huge amount of data in flat-file format that I would like to validate with Visual Basic 2010. Basically the data is a text file with 300 comma separated fields and 500,000 records.
Any tips, sample code or examples? Are any .NET classes specifically geared for data validation?
As I have different validation rules for each field (some fields are dates, some are currency, etc.) I would like to store the rules away from the code (e.g. in an SQL database table). Has anyone seen this done before?
View 1 Replies
Aug 9, 2010
Such as the text file has 5000 lines and 500000 columns. Each line has the format "xxx,yyy,zzz,000,...."
View 39 Replies
Nov 24, 2010
I have a huge text file that stores a huge matrix. The size of the file has 120GB. There are tremendous rows and 25 columns. I am only interesting a coulple of columns, say column 3, 6, 8, 13, 20. How to create a small matrix which contains these columns. I want to find a effective way rather than read the entire file.
View 1 Replies
Oct 3, 2009
Im trying to tell my button to go directly to a website, it works fine when i path it to the web browser itself, but then when i add it to go to the sppecific site it says system cannot specify file path. Heres the code Rob gave me and it didnt work ""[URL]""" Heres my exact line: Process.Start("C:Program FilesFlockFlock.exe ""[URL]"")
View 5 Replies
Sep 19, 2009
Is there anyway to use Microsoft File Transfer Manager as an OCX or DLL to manage huge downloads? I'm planning an app.
View 1 Replies
Jun 7, 2011
I've got an application that passes commands to a terminal window and saves all the output to a text file Here is one of the commands my application passes to the terminal
MyProcess.StandardInput.WriteLine("host " + device)
The output of which is
"HostA has address Y.Y.Y.Y"
this along with a whole bunch of other text is saved to a text file...my question is how do I find the sting "HostA has address Y.Y.Y.Y" in that text file and then extract the IP address and assign it as a string variable?
View 12 Replies
Mar 4, 2011
My app is a fairly simple and im sure with the right knowledge this would take 2 minutes.. but sadly iv been at it for hours. So my scenario here is a huge network with 20+ file servers all with data spread out across them it can take hours to find the folder required.
Hence this app.. so it consist of a input box, progress bar and a button, using FileSystemObject I plan to interrogate a directory to see if a folder exists (folder specified by user input) however it need to check multiple directories, in my old app I used a list box which wrote to a text file allowing the user to add additional directories then using if statements proceeded through the servers.. however they have added that much that my IF's have ran out really because i know it should have been a loop
Imports System
Imports System.IO
Public Class Frm_main
Private Const FILE_NAME As String = "C:directories.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim Lines() As String = IO.File.ReadAllLines(FILE_NAME)
Dim Dir As String
[CODE]...................
View 1 Replies
Jan 28, 2010
I have a config.txt file that has the following lines in it.
[MUSIC_PATH]=X:MultimediaAudio
[MOVIES_PATH]=X:MultimediaVideosMovies
[SHOWS_PATH]=X:MultimediaVideosTV Shows
[code].....
View 3 Replies
Jan 20, 2012
I've got a listbox build up as an array of items like this: First column is product id, 2nd column is name, 3rd column is price, 4th column is amount and I put them in an array: Public Item(3) As String,
7226218; Hemlock; 22.55; 0
7711175; Pine, Radiata; 12.45; 0
2229886; Pine, Arkansas; 15.25; 3[code].....
how to change the line if the Order(0) value is found in the listbox with the new amount value..
View 10 Replies
Aug 3, 2009
I'm developing a program to tweak the settings of the Thief: Deadly Shadows video game.The tweaker program is designed to load and configuration profiles so the ttlg/T3Ed Guild community can share tweaks with each other and then apply those setting to the game's ini files. A little more info here: [ame=http:ur]UNDER DEVELOPMENT - Thief 3 Gold Tweaker -l.... TTLG Forums[/ame] & here are a list of tweaks the tweaker program will apply to the game: [ame=http:[url].....
Anyway, I managed to load and save the config profiles but I'm stuck on applying those settings to the game's .ini files. The main problem is finding the right string. Thief: Deadly Shadows .ini file has settings for xbox & PC. I only want to change the PC settings in DEFAULT.INI:
[XboxStartup]
ShowIntroMovies=True
ForceCopyFromHardDrive=False
ShortIntroMovies=d:content 3VideoTextureseidos-logo.bik; . . . etc.
GameStartFiles=d:MediaFont12.xpr, . . . etc.[code]....
I want to change "ShowIntroMovies=False" under the "[PCStartup]" section when the user clicks "Apply Changes" on the main form.One way I could go about this is to look for "[PCStartup]" hold the line number it's on, then look for the "ShowIntroMovies" string under that line number. There are several instances in the game's .ini files where the same setting exists but they exists under different sections. So how would I find a specific occurrence of a string?
View 3 Replies
Mar 31, 2010
i need ti find string in the file with indexing service, the could be any type of file (pdf,doc,xls,txt)
i search on the internet i couldn't find the step by step tutorial
if any one have step by step tutorial to find sting inside the file
View 7 Replies
Dec 25, 2011
I have to find a string in a huge text file ( ~ 50MB) and then replace it.Since it's quite huge I tend to open the file and then read line by line, and then replace the necessary line(s) (rather than "readall" the file of course).My question is how to replace the whole line?Let's say I found the line that should be replaced . I know I can create a copy file and copy all lines into there ... but I'd prefer to replace the line in the original file rather than creating a copy instance.
View 5 Replies
Sep 21, 2011
I've been getting this error when I try and use my model container:
No connection string named 'PFModelContainer' could be found in the application config file.
I have my edmx file in a separate project. I checked the app.config file and my model was there, and I also put it in my main project app.config file. Still doesn't work. Here's the connection string:
<connectionStrings>
<add name="PFModelContainer"
connectionString="metadata=res://*/PFModel.csdl|res:
[Code].....
View 2 Replies
Nov 1, 2009
I would like to step through each *.txt file in a given directory, open it, find and replace all, perhaps a thousand, occurances of a given string (e.g. "00/00/00"), then close and save file, and step to next one in the directory to do the same find and replace. I've been looking at filestream classes and regular expressions but don't see a clear way to do this.
View 4 Replies
Jul 22, 2010
I have thios code that will load a php file (text file) into a sting via streamreader then its supposed to find and replace a portion of the text and write the changes back out to the file via streamwriter. I put my code together and after running it look at the file and it's unchanged. After looking closer it appears the problem is the find & replace operation I am doing on the string. Here is my code:
[Code]...
View 2 Replies
Sep 10, 2011
Using VB.NET, Is there a way to do this RegEx call in 1 step... instead of 2-3? I'm trying to find the word "bingo", or whatever is between the START and END words, but then also inside the inner FISH and CAKES words. My final results should be just "bingo".
Dim s1 As String = "START (random string) FISH bingo CAKES (random string) END"
[Code]...
View 2 Replies
Jul 31, 2009
I have been writing code fore a rather large project in the past mounts And Im beginning to think about arcitecture of the program... Its just a complete mess. I dont know how to tackle so much code..Its beginning to be impossible to debug.Basically Im doing the following prosidures. Importing several a Excel files and getting the rfrequency data from these files..Displaying them in a litview and a datatable... so you are able to edit them..Doing some calculation and exporting the results back to a xls file.Problem is now that im going to add more functionallity to the program,. What im woundering about is, is there some good unofficial guides on how to program with OOP?
View 11 Replies
Sep 21, 2009
I've been messing around with prime numbers for a while now, but I now want to use massive numbers, say a few million digits in length. Is there a way of storing and performing mathematical functions with such large numbers? Is it even possible on my home computer? I read on another old thread, something about a big number library, but the links he gave are now dead.
View 4 Replies
Oct 24, 2010
how to search xml file and display the result in list box.then export a xml file to excel in the search result
View 4 Replies
Aug 1, 2008
Ok New thread - god I hate laptops sometimes - I just 'lost' a huge post in the editor due
View 1 Replies
Mar 8, 2010
In .NET, the Generics Lists have a sort function that accepts IComparer or Comparison. I'd like to sort just part of a list. Hopefully I can specify the start index, count of elements to sort, and a lambda function. It looks like you can only use lambda functions to do this if you're sorting the entire list. Is that right or did I miss something?
View 4 Replies
Oct 5, 2009
My program uses a wmp control to play sound, but I am not sure why it is listed in Windows 7's Sound mixer and has a huge icon. How do I change this?
View 7 Replies
Apr 21, 2012
Is there a way I can store HUGE strings without using settings? Or storing it outside the program?
View 1 Replies
Dec 18, 2011
I have a past experience with visual Foxpro and SQL. Now, I need to build a database with multiple data files (say 100 files), each data file with millions of records, each record with dozens of fields.Then, each data file is linked with other files by using different fields. Primary data is in English. Then there would be a translation of the English data is in another language. Primary data in English is stored in separate files whereas the translated data is stored in separate data files.
View 4 Replies
Sep 22, 2009
I've been messing around with prime numbers for a while now, but I now want to use massive numbers, say a few million digits in length. Is there a way of storing and performing mathematical functions with such large numbers? Is it even possible on my home computer? I read on another old thread, something about a big number library, but the links he gave are now dead.
View 1 Replies
Apr 28, 2011
I was trying to do a simiple, fine a string start position, or a string, and it always returns 0
Dim My_Search_String As String
Dim My_Text As String
My_Search_String = "fsl fwb fcb"
[code].....
View 4 Replies
Nov 16, 2010
im using vs2010 and SQL server 2005. what is the best and fastest way to load large volume of data into treeview
View 6 Replies
Aug 31, 2009
I am programing a basic P.O.S. (Point of Sale) system, ad am looking for the best way to save Inventory objects. The object contains a few Singles and Strings (Such as barcode, name, price...ect). Assuming the user could possibly input thousands of such items, what is the best way to store and handle these?
My first, and simplest thought, is to add each inventory Item to an ArrayList, then once the user saves, or closes, the ArrayList prints each object to a text file, then when the program opens it reads the text file to re-populate the Array list. However, this seems very un-efficient (I assume). Would it be better to use an excell file or a Database (I know almost nothing about databases, but I can learn), or something completely different?
View 4 Replies
May 4, 2011
I have a very huge server log files like files are more than 500 to 600 mb and even some files are over 2 gb data. the files are maintained for few years. it will be maintained as is. each log file has at least 1 million lines to 20 million lines.I am looking create an application which can find a line in the text file using regex, removing duplicate entries.how these huge file can be handled in a way it works very quickly.
View 5 Replies
