I need to parse a CSV file with blocks of text being processed in different ways according to certain rules, e.g.
userone,columnone,columntwo
userthirteen,columnone,columntwo
usertwenty,columnone,columntwo
customerone,columnone<br>
customertwo,columntwo<br>
[Code]...
I'm using visual basic 2008 express to do some simple stuff. For this project, Im reading in one large text file.The top of each page has a header section that is always the same, except sometimes a dept# changes, signifying a new set of data.The first line always has the text "RunDate", so when I read that, I know that I'm at the top of the first page.After reading the first line, I'd like to immediately go to the sixth line and grab that dept# and store it.dept = left(trim(myline,7)(Its always 7 characters long) so I know what dept I'm working on.I'll then loop through and write each line to a new text file, until I hit the top of a new page.At that point I need to look at line 6 again. if the dept # is the same, I'll keep writing to the same file.Reading and re-writing from the text files is easy, I just loop through line by line, but I need to be able to jump down to the 6th line, and I don't know how to do that without reading each line to that point"
View 2 RepliesI'm busy with an applicaton which reads space delimited log files ranging from 5mb to 1gb+ in size, then stores this information to a MySQL database for later use when printing reports based upon the information contained in the files. The methods I've tried / found work but are very slow.
or is there a better way to handle very large text files?
I've tried using textfieldparser as follows:
Using parser As New TextFieldParser("C:logfiles estfile.txt")
parser.TextFieldType = FieldType.Delimited
parser.CommentTokens = New String() {"#"}
[Code].....
Im working on a somewhat major program for my work. Just in short, im reading in a text file but i then want it to break the text file into blocks. I will put a quick snip of it here:
(11/64"*DRILL*FOR*10-24*TAPPED*HOLES)
N7G91G30Z0.0M19
G90T7
[Code].....
So i figured id see what the pros could tell me. I have a couple good links, one for a regex cheat sheet but i just dont have a very good understanding of regex.
I am using the following code to parse a XML file of mine:
[Code]...
My text file is a settings file and I know I will be adding more to it in the future, right now it reads "autoplay=false;mintray=false;"I am currently using probably the most inefficient way to check both of those settings:
if contents = "autoplay=false;mintray=false;" then
elseif contents = "autoplay=false;mintray=true;" then
elseif contents = "autoplay=true;mintray=false;" true
elseif contents = "autoplay=true;mintray=true;"
endif
How can I read the file, find each word from the equals sign to the semicolon, and store each of them in a variable identified by the text before the equals sign? Something like this:
contents = "autoplay=false;mintray=false;"
autoplay = "false"
mintray = "false"
Also, how can I edit the settings in the text file without having to overwrite everything every time I save to it? For instance; finding mintray in the text file, and changing mintray to true instead of overwriting the file with "autoplay=false;mintray=true;".
This is my current
Reading
Dim fs As New FileStream("C:myfile.txt", FileMode.Open, FileAccess.Read)
Dim d As New StreamReader(fs)
[code]....
I have a complicated text file that has 10000 lines of text which is of the format
$$ ************************************
$$ Put FIXTURE alignment code below
$$ you are in Manual mode at this point
$$ ************************************
[code]....
I'm toying with an idea that would require me to parse a text file that contains a SQL statement. (i.e. Select * From Customers) I would like to be able to programmatically via Visual Basic identify key words, table names, comment lines, etc.So, how do compilers handle such a task? How does a SQL database handle such a task? All of the parsing tools are for CSV files with some sort of consistent delimiter. I'm wondering if I need to read the file one character at a time and then do some sort of comparison.
View 2 RepliesI need to code a hitcounter button that looks at a textfile,counts how many times a site has been visited and then shows a message box with the results
View 13 RepliesI'm using vb.net. sample data below.. Can i use regular expression to parse this kind of data?
ID:="000000877978" LOCATION:="ALASKA" TELEPHONE:="8979797890" AGE:="33"
ID:="080832108089" LOCATION:="ASIA" TELEPHONE:="088238780" AGE:=45 BIRTHDAY="04/19/1968"
So i have a SQL file with this sort of data :
[Code]....
p.s. If i am not able to make my self clear here then do ask me for my code , It works perfectly but causes the application hang and is pretty slow ( Using the StreamReader )
I Want to create a active log moniter but im having a problem parsing the text file, the data is jumbled like this
["#0000000040000002#","Vicinity","Neoilithic",1291770399]Masterengi
["#0000000040000002#","Vicinity","Neoilithic",1291773853]Igotit
["#0000000040000002#","Vicinity","Neoilithic",1291773854]Respect
[code]....
it dose what i want it to but it creates a massive file and dosnt do it quick enough i have to have a 1 second+ delay in it or it goes bezurk.
I'm trying to parse a text file. First I plan on extrcating each line, then extracting each field by searching for a tasb.When I use InStr to search for a (return for end of line) or (for tab) I always get a zero. But if I put in a visable letter such as a I got a 5.also I tried /r, /n and all return a zero.The file looks as follows:
ID Name
1 Patient
2 Bed
3 PatientSet
[code]....
I was wondering if anyone knew of a good tutorial for parsing data from a text file and then populating the data into multiple text boxes. I have a text file with information pertaining to my form. The text file consists of key identifiers for each piece of information needed and I was wondering how to programmatically fill in my form by parsing that data.
View 5 RepliesI just spent about 2 hours searching this forum on this topic but I need some advice. I am looking to extract certain data from HTML source code that I have down loaded into a text file its about 9KB in size.I am looking to keep all email address found. How would this work or what would be the best method to use? This is what I would like to extract and write to another file:
[Code]...
I would provide my code but I made it so complicated I don't really want to show it. I want to start over.I would like to create the most simple way to begin parsing the text file below beginning with the line - 1, EVENT parsing this comma delimited portion.I would like to
1. NOT include the comments and
2. NOT parse the Array1 and Array33 portion of the file
3. Put it into a collection based on the AlarmLog class provided below.
#TestFile.txt
#comments
#comments
[code]....
I'll start off by saying I am using Visual Studio 2008 Standard. I am creating a program that will open installed programs using short code. For instance, if a user types in 'npp' then Notepad++ opens. I have it working just fine to respond to the predefined commands, but I would like to expand it so that the user can define their own settings simply by typing the program directory and the custom short code they want: Example: If I am an end user and would like to say define a short code for Windows Media Player, I would simply type the following: (Assuming Excel or likewise is used to open the csv file).
[Code]....
show the code
View 3 RepliesI have a piece of code in my application that is giving me a funny result. I am reading a text file and based on it's first word on the line I have a bunch of IF statements that then assign the value to a variable.
The problem is that not all the if statements are being met, well they are but that's what's weird.
[Code]...
Im trying to parse a log file and display the data in a textbox.The log is forever changing so it will have to be some kind of a loop.I only want the new data to be added to the textbox after the application is running, not the contents already in the log file.
View 1 RepliesIm trying to parse a log file and display the data in a textbox..The log is forever changing so it will have to be some kind of a loop.I only want the new data to be added to the textbox after the application is running, not the contents already in the log
View 5 RepliesI am using Streamreader to read a text file containing data such as the following:
IN;SC;PU;PU;SP1;LT;VS10
IN;SC;PU;PU;SP1;LT;VS10
PW5;PU4179,27448;PD4179,29951;PD3244,29951;PD3244,30286;PD5494,30286;PD5494,29951;PD4555,29951;PD4555,27448;PD4179,27448;
The final goal is to use the numbers next to the PU and PD characters to perform specific calculations.
Essentially, I think the code needs to do the following:
1. Read each block of characters ending in a ";"
2. If the block commences with anything other than PU or PD, discard it
3. Extract the numbers in such a way that calculations can be performed. The following is an example:
x y
PU4179,27448;
PD4179,29951;
[Code]....
Essentially, there will be hundreds of these rows and I will need to sum up the deltas so that a specific formula can be applied.
I have tried doing this a number of ways but each seem very inefficient (using text boxes to store/swap data and creating additinal text files are 2 methods I have tried) and so I'm looking for some direction.
I need to parse a web page for blocks that contain open trouble tickets. The web page display several unresolved tickets and each one is inside a html divison labeled "issue-status". I've written the following code which does find the blocks, but when I try to parse its children to get its element fields (date opened, person requesting, history...) it instead pulls every element from the web page, not just the children.Is there a way to just parse the sub-fields under a particular DIV?
Code:
Dim theElementCollection As HtmlElementCollection
Dim strResult As String = ""
[code].....
I need to :
Read data from a file. The file contains the location and file name of a file and the name to which I want to save as (about 27,000). Then I need to Open the File with PDF Pro 9 and save as pdf in a specific loaction with the new name. Where to find some samples of reading, parsing and concatenating data and running a program from within a script?
I am working on a project in VB 2008 and need it to do this:Read first line from text file (using Openfile)Enter line into textbox on formDo some other codeThen Read second linefrom text fileEnter line into same text boxand loop until we have gone through text fileI am not sure how to read line by line from text file then enter it in textbox. I can open the Openfile and get the filename and everything, but I just am not sure how to read from it or enter that line into the textbox.Here is what I have, its not much but its a start:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileReader As StreamReader
[code]....
Using Visual Studio 2005 (vb.net) (windows forms) on Windows XP, I have a standard Microsoft TabControl.A button click adds/removes an image from 1 of the Tabs.Seems like the image is placed OVER my tab's text, making it unreadable.Why isn't it like it should be: Image on the left. Followed by text on the right.Why is the image being placed OVER my tab's text? Do I need to do some kind of "refresh" or "redraw" before it will appear as it should? I don't see any way to "make the image appear on the left edge of the tab". (NOT the tab-page.) ... and then place the text just to the right of the image. (Just like a normal image+text tab can do.)The code is pretty simple, it just gets an image from my ImageList: cfgTab.ImageKey = "PadLockClosed.png"' Show CLOSED PadLockThe tab's text changes from: This is my tab text to: T(IMAGE HERE)is my tab text The image appears OVER the beginning of my text. But if I move to another tab, then move back, the image appears in the correct position:(IMAGE HERE) This is my tab text
View 1 RepliesI've been writing a weight program for flooded pressure vessels and I'm having trouble retrieving the data from the text files I've been saving. I know how to write the data to the text file, but retrieving it with OpenFileDialog is not so easy for me.The user has individual text boxes that they input strings or numbers into and when they save the file, each text box input is written to one line in the text file. For example, the first text box is for the username, therefore the first line of text that is saved is the person's name, the second text box is the customer, thus the second line in the text file is the customer name, and so on.
(Actually, the first line of text in the saved file designates whether English units were used or Metric units because when the user retrieves the saved file, English units will open one form and Metric units will open a separate form, so some If...Then statement will need to occur).I need to be able to read the first line, have either my "EnglishForm"form open or my "MetricForm" form open, and then have each subsequent line of text be displayed in their corresponding text boxes. I know I need to use ReadLine or LineInput, but I don't have a clue what to do.Assuming the syntax I've displayed below would just magically work (if only life were that easy), it would look something like this
If FirstLineOfTextInFile = "English" Then
EnglishForm.Show()
ElseIf FirstLineOfTextInFile = "Metric" Then[code]....
And so on...I read a lot of articles from the MSDN library and exhausted each link that I've looked through from Google and Bing, but most only retrieve data from the file to a single text box through some loop or streamreader and don't take into account multiple forms.
I'm trying to read a text file that contains info like this:
ACX-101-011 , J2168
BTXR-130A-013, D6733
AJ4-233-614, T8211
I want to split each line at the comma and write the left side to a textbox and the the right side to another textbox. I'm close, with the code below, but I can only post results from the first line in the file. How do I loop this and append the text results in each of the textboxes.
Dim TempFile As String
TempFile = "temp.txt"
Dim sw As StreamWriter
[Code].....
I have a problem with combobox. I set the DrawMode into OwnerDrawVariable so I can draw items seperately with styles, but the characters of the items are now displaying blocks. The block characters are none ASCII. It used to display well but not now and I don't know what caused it to happen. I didn't change my system locale. At the same time, other combobox that have Normal DrawMode displays nicely fine.
My custom drawing code:
e.Graphics.DrawString(combo.Items(e.Index), combo.Font, b2, rect.X, rect.Y)
I'm developing an app for WP7 and Win7 that will get info extracted directly from particular websites. The app will download the HTML source and parse through it to find the required strings. The strings may not have tags. note multiple instances of the string needs to be found. I've tried a few very rudimentary ways, and although they work, they are extremely slow.
View 4 Replies
