Get StreamReader.ReadBlock To Start At A Specific Line?
Dec 31, 2009I want streamreader.Readblock to start reading a file from a specific line, but I need some help with this.so far I have have the following example
[Code]...
I want streamreader.Readblock to start reading a file from a specific line, but I need some help with this.so far I have have the following example
[Code]...
i need to read a specific line of txt in a filelines 1 and 3 always stay the same ...ishline 2 will change from time to timeits line 2 i need to readi can, using seekorigin cutout line 1 "highlighted", but i want to get rid of line 3 aswellis there a way of just reading line 2? even though it could be 5 words long or 5000?heres what i have so far
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim fs As FileStream
[code]....
I am currently writing a Login Script, and I am having trouble making StreamReader read a specific line in a text file. This is what I have so far (not the entire script, just the reader lines):
Dim path As String = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
Dim file As String = (path + "LogDat.txt")
Dim sr As New IO.StreamReader(file)
Dim line1 As String = sr.ReadLine(1) '' Supposed to read line 1
Dim line4 As String = sr.ReadLine(4) '' Supposed to read line 4
Dim line9 As String = sr.ReadLine(9) '' Supposed to read line 9
I have a txt file that I need to read into a listview, but I need to read from a specific line in that file. Below is a sample of the txt file to read,
6400,3200,2,95.5,84,76.6,0
1,2,-20,15,0,0,0,"NO",0,0
TOTAL GPM= 6400 HWT= 95.5 CWT= 84.0 IWBT= 76.6 ALTITUDE= 0
CODE]...
show me a simple code for downloading a file from internet with a URL,Line by Line with streamreader?
View 6 RepliesHere's what I currently have:
[Code]...
I've commented out various things to limit it to specifically this command (example, I can swap mklink out with notepad and it works fine). The command runs fine from a DOS window, but can't be found when I use it this way. I also tried using the SHELL command just to test and I get the same results. No idea why it can't be found, as like I said it executes from the command prompt just fine.
when using stream reader to read text files how would i go about reading or referencing specific lines.so if i wanted to read from say line 2, 3, 4 or 10,11,12 in the textfile or what ever.
View 7 RepliesI have a "Form" with:
1- List Box
1- TextBox
3- Button
1- OpenFileDialog
1- SaveFileDialog
I want that clicking the btn1 it shows the OpenFileDialog and read file that it has got this structure: SKI10 1 71 0 0 18 101 19 0 29 101 30 0 40 101 41 0 50 101 51 0 62 101 63 0 81 101 82 0 95 101 2 0 0 95 165 3 0 1072 01 4 2 1 93 15
I want that it reads all Line of the File and it add an Item in ListBox for line.For example the first Item of the ListBox in this case is
SKI1
And the 2th Item is in this case.
0 1 7
I want using the StreamReader classes.And i want that when i click an Item of the ListBox it shows the Text in the TextBox and I can edit the Line and that clicking antoher button the Item will come updated with new Text of the TextBox.I have also another button for saving the Mod.I can use the AppendText and it create a new file writing ListBox1.Items line for line.
If SaveFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then Dim file_esistenteD As StreamWriter[code].....
I'm using Process.Start to start an external command line application and using the StartInfo.Arguments method to send parameters to the application. I imagine I'll need to use a loop... but I can't figure out exactly how yet.I need to send anywhere from 1 - an infinite number of files names to this application. Each file has to be sent one after the other. So once the first one is done, I need to loop back around and past the second one.I can probably use the Directory.GetFiles method to get all of the files, but I don't know how to assign them.
View 7 RepliesI am looping through a text file and reading and then parsing each line.. then, inserting into a sql server. The problem is, I am getting every other line. Any thoughts? I read another post on here that is similar and it says that that person was calling the ReadLine twice... which makes sense. I just cannot spot where it is happening.
Private Sub btnUpdateRSR_Click(sender As System.Object, e As System.EventArgs) Handles btnUpdateRSR.Click
' Get RSR File
lblStatus.Text = "Getting RSR File"
Application.DoEvents()
[code]....
How can you make streamreader to split a line into two and place it on two different places of the form and how can you use streamwriter to delete/alter file contents.
View 4 RepliesWhat I have stored in my file is values related to an account. (Just testing, not going to be used commercially). What I need is to draw the values for the username and password, by going through each new line, but .peek() doesn't seem to work for me.
My block looks as such :
public string CheckAccount(string username, string password) {
StreamReader sr;
string filename = "H:\AccountInfo.txt";
string s;
string result = "";
[Code] .....
My code doesn't read from the 2nd line onwards, it just hangs.
How do I use line numbers? For example, I'm reading a text file and I'll need to get the line number of the line "=====LINE=====" somewhere in the text file, and I'll need to get the text of the next line (+1 of the previous line, but I'm not sure how to do readline(line number)).
View 12 RepliesNot sure what to use or how to use it. But I would like either streamreader or streamwriter to ignore a line depending on it contents.
View 15 RepliesI am reading text from a file (*.TXT) 1 line at a time using streamreader. As I read that input, I am looking for specific starting and ending character strings ("<" and ">") . When I find those strings, I would like to select the characters between those string and have it set to BOLD and BLUE before appending that input line to the contents of a richtextbox.The only way I have found to do this is to first append the input line to the richtextbox then use the richtextbox.selection (color and font) methods to change the text.
View 9 RepliesMy intentions are to add command line switching. I am trying to see if i could run my application in varoius ways i.e.
App.exe -S - Start the application in XX Mode
app.exe -T30 - Start application with 30 second delay
and that kinda switching.
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
46N93 P594 40898, 35899 39MIL;
PHY2_P2_CONFIG0 P2767 34205, 33537 39MIL;
[code].....
i have write all this value in another text file by adding the title.in my original file's line i must check whether the line contain any MIL value if not, I must write first T1 the below T1 i must write all the line which not contain MIL value until i reach a line which Contain MIL value. If the line contain 39MIL the i must write first T5 then followed by all the line which contain 39MIL until it reach the line which contain another MIL value. Let say 50MIL. the i must write T7 then followed by all the line which contain 50MIL. I sort my original file alredy. so the original file will start from the line which dont have MIL to 39MIL,50MIL,75MIL and 100MIL. Mu output file will look like this
GND P3559 9812, 7993 p9910.26;
GND P3559 9812, 7993 p9910.26;
[code].....
I have a problem with a streamreader in visual basic 2008.I am updating a database from text files on an ftp server. The streamreader works fine until the file is more than 100,000 bytes long.It reads until it reaches this point and then just ends. No error message, it just reads to this point which happens to be 2 fields out of 6 in the database stream. My question is - does the streamreader have a limit? And if so what is a workaround?
Dim connString As String = "Data Source=" & pDataBase
conn = New SqlCeConnection(connString)
Dim strQuery As String = ""[code]......
I'm writing a program that basically loads an entire text file into a streamreader variable, then reads this variable line by line and parses and writes a line into a new text file. I'm VERY new and my knowledge is mostly self-taught, but I can't seem to get out of this one. It works for smaller files, but it appears to reach a limit in characters at some point because in a file of 900 lines, it stops writing about halfway through 800 and there are no errors, the program actually completes and the message box pops up.
There are a few things with this code I already know I should fix, such as creating the new text file name, it's messy, I just don't know how.
Private Sub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim IndexValues As String()
[CODE]...
how to start a VB.NET program at a specific time of the day, but I simply cannot find it. I've found an example that shuts down the computer at a specific time of the day, but having no experience with the Timer function, I wouldn't know where to start when hacking the code.As an example, I'd like the program to run at say 2:00PM and display a message. The displaying the message won't be hard (MessageBox.Show("Stuff")), it's just the starting .
View 8 RepliesThis may sound silly but is it possible to run a separate exe and call a specific form to load?
For example:
Let's say I have two exes one that checks licensing and then once that is done it calls another separate exe to load a specific form based on the type of license selected?
It sounds doable but can anyone share a snip it of code that may do the trick?
I want to start multiple threads but not a specific number. For example;
private sub do_sth
...
end sub
[Code]....
How can I move my window to a specific System.Windows.Forms.Screen?
View 4 RepliesSimple question, i have a textbox which may be multilined (it might not be depending on user input) and is referred to as i[code]...
View 2 RepliesHow can I make my MDI child form to load in a specific position in the parent form? Or preferably, how can I make the child form Dock Inside a Panel in the parent form?
View 4 RepliesCurrently I have the code:textbox1.text = textbox1.text.insert(textbox1.getfirstcharIndexFromCurrentLine(),";")But this means it has to reload the entire textbox, which with large files is noticeable slow.What are the alternatives?
View 3 RepliesI cannot run Windows Services , I am getting error message "Cannot start Service from the command line or a debugger. A Windows Services must first be installed (using Installutil.exe) and then started with the ServerExplorer, Windows Services administrative tool or the NET START Command."
I have run the InstalluTil.exe and open the Visual Studio 2005 command prompt and run below command but still not working.
InstallUtil " D:\Khwathie\MyNewService\MyServ\MyServ\bin\Debug\MyService.exe".
How would I start a Command Line program with arguments?
View 4 RepliesWhen I set this, I cannot read it ..CommandLineArgs is '0' in the following code.For Each argument As String In My.Application.CommandLineArgs ' Add code here to use the argument.
View 6 RepliesWhen I set this, I cannot read it ..CommandLineArgs is '0' in the following code.
For Each argument
As String In
My.Application.CommandLineArgs
' Add code here to use the argument.
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