Parse A Text File By Line?
Jan 20, 2011
I'm running into a problem whenever I try to parse a text file by each line. I know I could use stream reader to read line by line but it is a lot easier to simply use split() and I would also like to know the reason why split() doesn't work.
For example, I created a file "test.txt" and filled it with the following text.
text1
text2
text3
then put the following code in the load event of the form (a button click would work the same).
[Code]...
View 5 Replies
ADVERTISEMENT
Apr 4, 2010
I need to load and parse a text file and extract data between points on any given line. I can load the file, but it's the parsing that's giving me headaches. e.g. "Phoned Jim and arranged for John to attend site" First I need to search for "Phoned" because the line always starts with that, and then I need to extract "Jim and arranged for John"
[Code]....
View 5 Replies
Jul 22, 2010
I am making a small program that will parse the end of a game log file to calculate DPS, hit %, exp .. but I am having trouble with stopping the code from continuing to read matches I find in the last line. Even if the last line has changed it will continue to find say "You hit" and parse the dmg done in the line.
[Code]...
View 1 Replies
Dec 19, 2008
I've been looking through the FCL for a method that will allow me to erase a line of text from a text file and replace it with another line of text. Neither the StreamReader nor StreamWriter have a method for replacing or removing Text from a text file, as does the string object. Are there any available methods for erasing just certain lines of text from a file, and then replacing them with others?
In my code, I'd like to locate a certain line in the text file, and then at that point in the text file, use a For...Next Loop to replace each successive line of the text file with new text:
Dim user_data_file As String = "user_data.txt"
edit_input = New StreamReader(user_data_file)
Dim edit_line As String = edit_input.ReadLine
[CODE]...
However, I can't find any methods that will allow me to do this.
View 4 Replies
Sep 21, 2009
Basically what I'm trying to do is read a text file line by line. After each line is read, it will put each line into a separate text box. I've been trying to do this for a while and so far I haven't been able to. I tried using a for loop, but that just put all my lines in to one textbox.
View 8 Replies
Jun 23, 2011
I'm reading a text file with StreamReader, line by line. If a condition is met, then I do an operation and then start reading the file again from the first line. I realize I could close and then re-open the file, but surely this would be very slow.
I could do this easily in VB6, but pulling my hair out trying to do this in vB.net. It seems that 'Seek' is the function to use, but it doesn't work.
I've seen other examples, where it works, but you must open it a different way -- with a file number.
Imports System.IO
Dim I as Integer
Dim LineText as String
[Code].....
View 2 Replies
May 9, 2009
I need to parse some text to extract the name/path of an image file inside an X file. The part of the file looks something like this:
TextureFilename {
"C:\\Users\\USER\\Documents\\Map\\Textures\\Grass01.dds";
}
[code].....
View 14 Replies
Jun 22, 2010
I occasionally have to search a very large text file as a troubleshooting step. The file is continuous text (with spaces between much of the text) but almost everything is date/time stamped. The text is actually messages between two machines so I'd like to insert a line break after every message so that I can follow the protocol exchange. Thre are also a few key words that I'd like to again, separate with a line break.
View 1 Replies
Nov 29, 2010
I occasionally have to search a very large text file as a troubleshooting step. The file is continuous text (with spaces between much of the text) but almost everything is date/time stamped. The text is actually messages between two machines so I'd like to insert a line break after every message so that I can follow the protocol exchange. Thre are also a few key words that I'd like to again, separate with a line break
View 2 Replies
Nov 11, 2009
I am trying to pull out a row of comma seperated fields from a text file. I have a combo box which pulls a product number, and what I want it to do it after you select the item in the combo box it will search through the text file and pull everything in that row?
View 1 Replies
Jun 2, 2009
I am using VB.NET 2005 (if that matters).I need to parse a text (log) file in which to process lines like:
Program Up at: Tue Jun 24 11:32:53.656 2008 - TerrificProgram.exe
<some lines here which I ignore>
0.00:24:16 - Emergency Stop!
<more lines to ignore>
Program Down at: Thu May 29 22:22:56.000 2008
where the 0.0:24:16 is the offset in TimeSpan format (d.hh:mm:ss) relative to the 'Program Up at" datetime.The 'Program Up at: <date/time>' line I successfully detect (in another function which works) and as a result a set a Boolean flag that I am in a valid <Up> - <Down> sequence and I also set a Start-up DateTime var to which to add the offsets later.
The task is to convert the TimeSpan at the beginning of the 'Emergency stop' line to a regular DateTime expression and to write the converted line to another log-file.Simple, isn't it?The function I use for the above purpose is:
Private Function IsTimeSpan(ByRef InputLine As String, ByVal ProgStart As Boolean, ByVal DTofProgStart As DateTime, ByRef NewDateTime As DateTime)
Dim iLine As String = InputLine
Dim Index As Integer = iLine.IndexOf(" ")
[code]....
What I am doing is I pass each line ('InputLine' parameter) from the original log-file to the function together with the 'in <up>-<down>' flag ('ProgStart' parameter'), the start ot program DateTime (in the 'DTofProgStart') and I want the NewDate to hold the real datetime of Emergency event occurence (not its offset).
What happens is that I successfully detect the lines of interest but the NewDateTime is not updated (though 'ts' is in the correct format and the assignment 'NewDateTime = DTofProgStart' correctly assigns the passed value).Another curious thing is that the line
InputLine.Replace(testStr, NewDateTime.ToString("MMM dd HH':'mm':'ss yyyy"))
does not change the original TimeSpan beginning of 'InputLine' with the regular DateTime (though not updated) in 'NewDateTime'.Why?
View 1 Replies
Jan 13, 2012
Example Data Link - Sorry, wouldnt format correctly when pasted.
1.
Dec 01, 2011
06:00:00 AM
Dec 01, 2011
[code].....
Output something like
12/1/2011 6:00:00 AM 12/1/2011 7:05:00 AM 65 65 2.11
View 1 Replies
Nov 19, 2010
# TAG NAME = is saved to a file using the code below but when I load that same file back into a RichTextbox Control using additional code below, I get inconsistent results as I try to parse the text. Has anyone else had this problem?'Save the contents of the RichTextBox into the file.richTextBox.SaveFile(saveFile1.FileName, RichTextBoxStreamType.RichText);'Retrieve contents of File into RichTextBox control Dim logData As String
logData = System.IO.File.ReadAllText(path + "\" + filenname);
View 2 Replies
Jun 23, 2010
How can I parse a text file and extract the data to excel file. The text file is in the following format
CustomerInformation
Tim Alen
596 George Town
[Code].....
View 5 Replies
Jul 5, 2009
I have to parse through a text file that is growing and currently is about 30MB, but it takes a long time for the stream reader to load it before It can loop through the lines. Is there a faster method other than the streamreader?
View 2 Replies
Apr 12, 2012
I'm trying to use VB.NET to parse a very large plain text file (2 GB). It is a database and has a field delimiter of SOH and a record delimiter of STX. I want to separate the fields and records of the file.
I would normally read each line of a text file and then use the split function to separate out the fields. I can't use this approach as there isn't always a delimiter on every line.
Is there any way to read a file until STX is found (rather than one line at a time)?
View 2 Replies
Sep 11, 2011
I am a completeBrenner of vb.net using the below code for download stock price from yahoo finance
but it is difficult to add stock symbol always in code,so I want to use a text file and add stock symbol, A Program will read the text file and [code]...
View 8 Replies
Jan 23, 2012
here is a snippet of the file,
Year 1
mandatory
COM137,Mathematics for Computing,20,2
COM140,Computer Technologies,1-2,20
COM147,Introduction to databases,1-2,20
Year 2
[Code]...
in here is where i am having the problem i don't know how to get all the information i need into one specific array element within an array.. i want to get the year and the module status added to the end of an array element
View 2 Replies
Feb 26, 2011
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim StrInput As String = Display.Text
Dim firstInteger, secondInteger As Integer
firstInteger = StrInput.IndexOf("ad_list_link", 0)
secondInteger = StrInput.IndexOf("ad_list_link", firstInteger)
[Code]...
I need to string z from a webpage source file but having trouble cutting the code around it away.
View 2 Replies
Aug 18, 2009
Can I get some assistance please on converting a basic text file into a excell spreedsheet (comma delimited).
I need to take this file that contains[code]...
View 4 Replies
Aug 9, 2007
I want to catch the text from an html page.. you know that when you open any html page in the browser, you will see a text but with formatting.. because it's an html code having a lot of tags...
how to get the text from an html page and ignore all formatting and html code?
[Code]...
View 7 Replies
Oct 22, 2010
My application is supposed to parse a text file (relatively easy) and create an excel spreadsheet report. Should I write a stand alone VB.NET application that saves the excel file, or should I use VSTO? I am unsure if there are any differences in terms of ease of development, usability issues, API functions available, etc.Are there any other programming languages/interfaces/libraries that will allow me to rapidly develop an involved excel spreadsheet? I am talking about things like functions, graphs, etc.
View 3 Replies
Sep 27, 2011
I'm attempting to parse a text file containing several Windows paths; I'd like to use regular expressions if possible, and I'm using VB.NET.The file is formatted somewhat like so:
M - Network Mode
C:ClientSystem - System Path
C:ClientProducts - Product Path
[code].....
View 2 Replies
Feb 22, 2009
I am trying to parse a very large text file for certain strings. The text file is part of a level-making software for an old game I play. The text file basically contains all the information the level designer software needs, but the only important bit is the 'texture information'. Basically what I'm trying to create is a little program that parses the text files and shows the user a list of every texture in that text file. The problem is, the strings denoting textures are not really easy to find, and I can't think of any sensible and fast way to get them...
[Code]...
View 12 Replies
Jun 29, 2009
i would like to store contents from a text file line by line to arrays before copying them to another text file. what i have is currently like this:
[Code]...
Currently I'm only able to store the whole content into one variable, would like to store the content line by line in arrays.
View 5 Replies
Jun 11, 2011
I want to read a HTTP Post that comes from a server to a website. I am trying to write a script that basically parse the HTTP post that comes in as text format and read the variables in the text file then add them to a database.
I know how to do the second part but I am unsure about how to read the text file variables that comes from the HTTP Post
The HTTP post that get sent looks as below
CODE:
No Insurance
I am trying to write a code for this and have the code below
CODE:
How do I get the variables in this text file, mainly start after ":" and the last 3
View 2 Replies
May 14, 2009
I have to create a new program that reads to Text files. These text files are in the form of a report (with column headings). The purpose is to compare each record line by line to see if their have been any changes made. The record is based on an Account#. Over time these files will be considerably large. What is the best way to do compare records from each file. I'm thinking loading each file into an array and processing them that way.
View 7 Replies
Sep 11, 2011
Basically, I'm creating an application which takes a list of words in .txt format, such like this:
Abc
Def
Ghi
Jkl
mno
What I want to be able to do is modify the words, one by one, so that I end with
Abc1
Def1
Ghi1
Jkl1
mno1
or whatever the user wants.
I created this app in C++ to get the logic, since I am more confident with that
View 4 Replies
Mar 19, 2012
I must use streamreader to read text file line by line into array.
Here's what I've got.
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim numbers() As Double = New StreamReader(txtfile.Text)
Dim numbersarray() As Double
[Code].....
View 10 Replies
Apr 8, 2010
I just joined this forum as I've been looking for a nice and serious VB forum for a long time
I'm having troubles making a program to search a text file line by line for a specific string.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim objReader As New System.IO.StreamReader("C: est.txt")
[Code]...
as you can see in the code its supposed to read a text file and if the line contains the same string as in the textbox then its gonna make a messagebox.
now the problem, if the line does not contain the specific string but the next or any line other line does, then it should automatically read the next line on "Else" and that's where I'm lost
for a "Readnextline" command or something like that?
View 9 Replies
