Reading A Text File And Dispose In A Data Grid All Lines?
Oct 20, 2010I'm getting some problems to read a text file with this configuration:
[Code]....
I want to put all 3 lines in a data grid view.
I'm getting some problems to read a text file with this configuration:
[Code]....
I want to put all 3 lines in a data grid view.
I am trying to read a specific line from a text file and for some reason when I set my variable loopCounter = 1 To 5 it jumps all the way down to the word "Marty" in my text file but if I just change loopCounter = 0 To 5 it jumps to where it should be which is the letter "M" right after "25". I'm trying to get it to read "25". as this is an assignment for a VB class I'm taking. My text file is at the bottom.
Do While readFile.Peek > -1
For loopCounter = 1 To 5
readFile.ReadLine()
[Code].....
This is my code:
Dim lngLines As String
Dim sr As New StreamReader(opdFileAudio.FileName)
While Not sr.EndOfStream
lngLines = sr.ReadLine
If lngLines.Contains("x") Then
lngLines = sr.ReadLine
[Code] .....
At the moment I want to read all lines in text file to a list box but I don't add strings x, and string y to listbox, and looping in.
lngLines.Contains("y")
I'm writing a program where there are text boxes and the user can enter info and append them to a text file as well as read from the text file and view the various entries in it. The problems I'm running into are that I have a button that opens an open file dialog box allowing you to select the file, and I want to get it to open the first entry of that file in the correct text boxes. the code so far looks like this
code:
I used to have this bit of code in there but there was a conflict with the .txt file being used more than once at the same time while it was in there.
code:
Im also having trouble writing to the file and I'm not sure why. I have an "Append" button that has this code in it
code:
and it comes up with the issue "object reference not set to to an object instance".
reading a text file into an array after a certain line in the text file, at the moment i am trying to do it using the method below: but i am having trouble thinking about how i can copy everyother line and also how i can count through the array the i = 0 and i = i + 1 are there while "i".
In a line what i would like to do:I need to copy everyother line for a known amount of lines that appears after the line " I FT I KT I " in a text file, but i do not know the position of this first line in the file.
Dim lines() As String = File.ReadAllLines(sessionsPath$ & "vmcg.afm")
For Each inline As String In lines
If inline.Contains(" I FT I KT I ") Then
[code]....
Does anyone know how to read individual lines off of a text file?
If the textfile looks like this:
Text1
Text2
Text3
Text4
You could make it so on timer1 it sends text1, then on the next tick text2, and so on?
I am working on an app now, and I need it to read text from a .txt file, but there's more. Here's what I want it to do:
Dim text as string
Find "file.txt"
text = line1 in txt file
Do something
text = line2 in txt file
Do something
text = line3 in txt file
Do something
And so on, until there are no more lines to read. I have searched, but all that I have found requires you to preprogram the amount of lines in the .txt file. I want to be able to add lines later without having to go into the code and add more.
I am new to ASP.Net and am trying to set up some content pages to work with my master page.I currently have the following text hardcoded into an asp:contentplaceholder and it works just fine. I want to read lines in from a text file to produce those headlines and retain the current formatting. I tried using the tag i need each line as a separate tag. Below is the code in the content place holder. Id like to have this done in the Page_Load or the pre Init.[code]
View 2 RepliesI want to put a function that reads a text file and put it in textbox1. I used this code to read the last line
Textbox1.text = Io.file.readalllines("C:c.txt").last
but I want it to read the third line.
Here's what i've got so far, i've written all of the data that i'm going to put into my config file, however i'm having trouble reading the specific string values that I need from that ini file. The parts of the ini lines I want to get are the values in between the I've tried using streamreader a couple things but i'm having trouble figuring that out. I need to parse each line of the ini file to get that value in between the single quotations, so that I can set the value for my richtextbox background and text color as well as a few other things that i've set up in my notepad including tab spacing and so on. lots of these different values need to be converted from a string value to integers, and boolean values as well. (4 of them, the rest of them don't have to be changed because they are already string values when my application reads them to determine it's application load settings.
EDIT: I just noticed in the preview that this is from the version of the app where I had streamwriter write "______ value=" & Something to a file. lol some of the (')s are still in this version, so please excuse that little part. I had them in, but took them out so that I could trim data to get a value easier, but I want to use (')s hopefully when all is said and done.For example, just to restate what I want - in the ini file it will read [setting name] value='VALUE'I want to be able to "get" the string value of "VALUE" within the ini file between the 2 single quotations '
I'm trying to create a program that stores a users stats for their character (for something like an RPG). I know how to write more than one line in a text file, but I want to learn how to read and write text on specific lines of my file. I know that you can just read each new line individually in order using a StreamReader, such as
username.text = readLine.ReadLine()
userage.text = readline.ReadLine()
[Code]....
This is good for just displaying the stats and changing them from a constant interface, but I'm afraid that eventually I'll need to read/write specific lines, like reading the fourth line which might specify magic level, or writing a new money amount.
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]When I start debugging mode it does not display the text until I click onto the text box and it's displaying the first line of text in the file. How do I skip the first line of text and have it display the second line (or the 6th, 24, or whatever line I need to be displayed)?Then I can start working on learning to use streamwriter
View 6 RepliesI am reading from a textfile. How can I skip a line if it's empty?
Or is it possible to delete at the beginning of ReadAllLines to remove this empy lines.
An empty line would be following:
text1
text2
"empty line"
text3
[Code]....
I have a datagridview which have 5 columns. The name of the columns are T,C,F,S,H. [cod]e...
So i want to display this data in datagried view. I must display the number beside T to T column, the number beside C to C column and so on. It should only display number in the respective column. It should not display the T,C and so on. [code]...
Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
I looked at the Dispose() method in System.Data.SqlClient.SqlTransaction (using a decompiler):
[Code]....
Why does everyone say in forums that it is Rolling back in the dispose? Where does it rollback?
how to show data in textbox when mouse click on any cell grid in vb.net with text file?
View 6 RepliesI will use this program for meter reader. Anyone can help me reading data from text file.. For example I want to get the data that i export from MySQL Database to Text file..
I have textbox to insert the acct number to search the name, and button1 to execute search, and another Textbox to store the name that have been search.
[Code]...
Data in zone6.txt ---- Acctnum, 06-12-057, LIZAcctnum, 06-12-058, MARK, Acctnum, 06-12-001, MICHAEL
Acctnum is the column 1, 06-12-057 is the column 2, LIZ is the column 3.. how can i get the name LIZ if i type the acctnum
Ive made a program that reads in data from a txt file that has 4 columns, but it doesnt work if there are headings to the columns or any other kind of text at the top of the file. I basically just want to be able to skip any text at the top of the file, either by the user specifying how many lines to skip, or by code that can calculate how many lines to skip.
At the moment, the code opens the file, calculates how many lines there are in the file, redims an array to this size, closes the file and then reopens it so its ready to have the data read.
This is how the data is input into the array at the moment:
ReDim data(lines, 3)
i = 0
While Not (EOF(1))
[Code]....
I was thinking a possibility would be to use a try statement so that if the data is a string, then it skips over that line, but i couldnt figure out how to put it together.
I am currently trying to write a program that will do the following. 1. The user will open a .txt file that needs to be converted into a CSV file. 2. The user will then click on a button to convert the file. 3. The program will parse the .txt file for the necessary data and will then write the data to a new CSV file. So far I am sure that I can write the code which will open the file and which will save the file to the new format. Where I am having problems is with the .txt file format that I have to work with. [Code]
Each field is fixed length with the empty space in front of the starting numbers being a field. I have been unable to find any code that would show me how to parse only certain data from this .txt file. What I need it to end up looking like is this: [Code] The program itself needs to be pretty simple as the .txt file will only have at most 25 to 30 records. I was thinking of using a StreamReader to read the data into an array, but I can't figure out how to get just the data I need out of each record.
The program that I am writing has three default variables that I would like it to store and also be able to change. I have them in a text file called "settings.txt" The format of the text file is as follows:
Default Source "I:DCIM101MSDCF"
Default Destination "C:Documents and SettingsChristyMy DocumentsMy Pictures"
Default Backup Destination "D:My DocumentsBackupMy Pictures"
The field descriptions eg "Default Source" take up 30 characters, so the variable data starts with character 30. I know their has to be an easy way just to pull out the data from a particular line starting with character 30 but I can't find it.
I have a text file which has the format
A;UK;WN0XKKF;XX377SL;POSS TRADE MONITOR
A;UK;N6HXS;XX361NG;POSS TRADE MONITOR
A;UK;DU58XPK;XX37 6UR;EXCESSIVE WASTE MONITOR
A;UK;R251YXF;XX36 ZHA;POSS TRADE MONITOR
I am trying to read the code, and pull out the 3rd, 4th and 5th set of each line in to a datagrid.
Dim list = New List(Of datagrid)
Dim FILE_NAME As String = "C: est.txt"
If System.IO.File.Exists(FILE_NAME) = True Then
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Do While objReader.Peek() <> -1
[Code] .....
I get the reg come up ok, but then it errors out with Index was outside the bounds of the array.
I'm working on a program for a side business I run with a friend, who is a non-programmer.I've done a program before, using IO.StreamReader and IO.StreamWriter to read and write lines to a text file.
But now, I'm working on reading text data (it's output from an old legacy program) that reads a first and last name, and the customer number (6 digits) from one file.
Then, it uses the data (customer number) read the first time to cross reference the zip code and status from a second file, and display it.
The Data in the Text Files are as follows:[code...]
How would I begin parsing for the first and last name, and the customer number to assign to different variables?In the line that references names.txt I meant to put customers.txt.
That's a snippet of code I took from a previous program, so I know how to read the data, just don't know how to extract it.
I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
[code]....
The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
I have a text file containing lines of data (File 1). I need to delete all the lines in another text file (File 2), which are found in file 1.So I could read file 2 line by line. And then once the line has been read, read file 1 line by line to search for a match. But that's going to be painfully slow.Or I could read file 2 into memory. And then read file 1 line by line and REPLACE the lines in file 2 with nothing, therefore deleting them. File 2 could be 100 mb, so I'm not sure about reading it all into memory.
View 16 RepliesEven a primer on just reading/writing to a text file would be golden. The array confuses me further, but understanding the data is primary.
Basically, we're writing a program to manage inventory for a bar. Fields and a few lines are below. The delimiter is "||"
So... How do we read the data into the arrays? NAME would be strName(), etc for all of them.
how to write and update existing data.
UID||BREWERY||NAME||SIZE||FORMAT||SEASONAL||PRICE||CASECOST||CASEQTY||BREWERYLOCATION||BREWSTYLE||ST YLE||ABV||CLASS
A0101.12B||Abita Brewing Company||Abita Amber||12
[Code].....
This project is based on a MUD, or at least originates from playing them. I have an ascii map where each character represents a type of terrain. I have found code for reading one line at a time, but I need to not only dictate which line to be read, but how many characters in to the line to read. Basically trying to make a grid/coordinate system, where I can tell it my location is 4, 7 and the program will read the fourth line, seventh character.
View 3 RepliesI use this code to read in a text file:
Quote:
Dim fileName As String = fileloc
Using reader As New System.IO.StreamReader(fileName)
While Not reader.ReadLine() Is Nothing
[code]....
THe problem is it reads in every other line.I assume its because its reading line one in the 'while' then the next line being stored during the loop....
I am trying to read in demographics from a text file. What I am trying to do is use the commas in the text file as a stop and starting point for each field. Instead of explaining all will be clear once you look at the code.
Dim filecontents As String
Dim newlineindex As Integer
Dim numindex As Integer
Dim credents As String
[CODE]...
I got the following code to read an XML file: [Code] Obviously the count limits the amount of lines that it reads. But how do I get it to read all the lines in the file? Ive tried removing the And (count <20) but when I run the program nothing happens.
View 2 Replies