I am trying to write a basic .net program that reads from one file with streamreader, scans each line for specific errors in formating and if the errors exist correct them in an output to another file that I've just renamed as same file name.cache.
View 2 RepliesI am trying to read the content from a .csv file and storing it in a variable. Later I am writing that content into a newfile. Code is executing successfully but the data is not appearing in new file. Here is my code:
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I 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 trying to create a program which reads a text file into an array.
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But that's just silly so how can I fix this? Lines isn't being assigned a null value it's being assigned the first line of text in the file which has text in it so I'm confused.
Im trying to use a Settings file that the program opens and reads the info from when it loads BUT when the user chooses a custom color (ex: ff5f67d6) How can i assign the form background color to that color code?
Dim BgColor As Color = ColorTranslator.FromHtml(Settings(0))
Me.BackColor = BgColor
Settings(0) = the color code
that is the code i tried to use that doesn't work
I have to make a program that reads a txt file after reading it, show it in a richtext box and in another tab make the average of the grades the input received sort it by the student id and then in the same rtb sort it by the average of their grades, and finally save it on a new text file.
The text file input is something like this
12 3 10.0 6.9 7.3
19 2 6.7 9.3
10 3 4.5 9.3 4.5
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As you noticed in the input the first number is the student ID, the second number is the number of tests made by the student, and the other 3 numbers are grades, in the output the first number is the student ID, the second number is the average of the tests, and the other 3 numbers are grades, I don't have a problem opening and saving a text file and neither creating a tab with 2 RTB , my problem is how do I tokenize or read the input line by line, i guess that i need to use the split function but I don't know how to implement it into the program.
I am making a program that reads a file. Csv,and information to a textbox.
After he demand on the Csv file, the same information he writes what is in the same row forward in the same textbox.
A-dos-Francos;39.346246,-9.031105
A-dos-Negros No;39.366089,-9.090929
A-dos-Negros PV;39.366886,-9.131098
[CODE]...
Example: If "A-dos-Francos" is written in the textbox I want that it be replaced by "39.346246,-9.031105"
But in the same textbox.
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()
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This is my 50th attempt to read the memory and probably my last attempt if I don't succeed now T_T I've been trying to write a class that reads from the memory, simply by creating wrappers around the Win32 APIs but I just can't get it to work.
This is how I currently am trying to read the memory from calc.exe:
Public Function ReadMemory(ByVal hProcess As IntPtr, ByVal lpBaseAddress As IntPtr, ByVal nSize As Integer, ByVal lpNumberOfBytesRead As Integer) As String
Dim tmpBuff As Single = 0
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I need to write a code that reads off a value from a another system's screen and compares with fixed value in .net 2005. The code should read all 24 lines of data from the screen and match to see if it is equal to the fixed value. What I have so far is:
Code:
Dim ObjScreen(6) As Object
Private ObjOIA_Area(6) As Object
Private OIA_Area As Object
[code].....
However the code is not working. and get an error. How can you select all or read line by line to get your desired result....
I have a hardware which sends out packets containing 17 bytes to the comport in bursts of 3. the little test VB that I have written receives and displays the bytes in a line of 17 bytes long and works fine until it gets to around 170th packet, then it starts to mix up (looks like shifting the data left) the bytes shift mostly by one digit sometimes by two. then it will continue to give almost a packet correct and a packet shifted for about 50 packets. Then it will correct itself for a long while, but then the speed at which it receives drops. All the packets are sent 3 times, and before things go wrong (within the first 170 packets) the packet counter shows that it receives 3 packet each time but after the problem it goes to 2 packet per burst and then to one.
If i close my VB monitoring program say at packet 165 and immediately open it again, it wont go wrong for another 170 packets, this points the finger at VB. I have check my hardware, there is no problem with that.The program reads port - waits for 17 bytes - once 17 has been received it will go and buffer the packet in an array. In fact they are 2 arrays but printing fro either results in the same problem.I have tried whatever i could think of but to no avail, i am wondering if some kind of house keeping needs to be done to clear something... I am sorry the program is a bit messy but I have been making many changes to find out what the problem is - my code below:[code]
Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
I want to write a program to write in an xml file in this format:
<?xml version="1.0" encoding="utf-8" ?>
- <Orders>
<Item id="1" SKU="998123" Description="Super Widget" Quantity="100" />
[Code]....
how to make a program that reads the url of ie or Firefox.. really Want to make a program like this ..
View 7 RepliesProgram to convert binary pdf file to tiff file in VB.NET..?? We can use third party tools also..???
View 1 Repliesi am a beginner and trying to write a program that can convert .dwg file into .xml file format.i am familiar with visual studio 2008, vb.net and autocad 2007.my question is what do i need to do or learn to start this project?
View 2 Replies[code].....
View 2 RepliesMy program has to write to several files according the users settings, options, and other purposes. But when i tested this, it gave me an error, access is denied. I do not want the user to make it run as an admin nor do i want to find another way to do this, because the only other way is the temp dir and when user deleted files from there it could mess it all up.
View 4 RepliesI am tring to write a batch file to run a DOS program under a GUI as below
My.Computer.FileSystem.WriteAllText(c:convert3.bat", "aften c:movie.WAV c:movie.AC3", False)
When the batch file runs
C:>convert3.bat
C:>∩╗â”aften c:movie.WAV c:movie.AC3
'∩╗â”aften' is not recognized as an internal or external command,
operable program or batch file.
Why the extra data tacked onto the front of the bat file..The below code works but is more lines...
Dim fs As New FileStream(MyFolder & "convert2.bat", FileMode.Create, FileAccess.Write)
Dim s As New StreamWriter(fs)
s.WriteLine(batstring)
s.Close()
How should I modify the following Vb.Net code to write str to the file in unicode?
Do I need to convert str to Unicode before writing to the file?[code]...
I've been banging my head for a while now and just can't seem to figure out what the problem is here. I have not really worked with XML much and thought it would be good to do some work with it in order to have a better understanding. I decided to write a little program to allow editing a game file. I found some examples on the net of basic XML functions and tried to use one of them in my program.
The Xml file I am working with is huge so I will show just enough to give an idea of the format.
Code:
<?xml version="1.0"?>
<Proto version ='2'>
<Unit id ='0' name ='InvisibleProjectile'>
<DBID>20</DBID>
[Code]...
I have tried different text in the select nodes portion, such as "proto" "/proto" and the above but in every case I get a count of 0 on the node list and nothing is displayed in my textbox.Each <Unit> is roughy 30-35 lines and the file has over 59k lines of units so clearly the count should be rather high but always 0.
I am new to VB.net
I have a simple form with two textboxes, I want Textbox1 to write to a file named C:VALUE1.txt and
Textbox2 to write its value to a file named C:VALUE2.txt
Any text that is already in the text file MUST be over written.
I have a function to check if a file is open:
Public Shared Function IsFileOpen(ByVal fileItem As String, ByRef bFileStatus As Boolean) As Boolean
Try
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I need to check whether a file is open so that an alert can be put on screen for the user to close it before continuing to the next stage of the application.
But when I test the function with a file open, the error is not being caught.
I'm trying to write a text strings into a binary file and then call it back from another sub.[code]...
View 6 RepliesI'm trying to write a vb.net program that will upload a file to a FTP site that has SSL (explicit, although I'm not sure what this means).The sample code and explanations I've Googled always assume when it's SSL that I'm using a client certificate. But I have no certificate to load.I simply need to login, accept their certificate and upload my file.When I accept their certificate am I actually installing it on the client? For example of FileZilla a box pops up and I just click on accept, then my login is complete.
View 1 Repliesthis would be my first post and usually I can figure these problems out, but I am stumped so badly right now, I am writing code to write into a .mdb file, my program uses two login forms, the first reads the data base, and sees if the user name and password is correct. I got that working, my second login form is used for creating an account. This is where I am getting stuck, I have followed and looked for tutorials and I found nothing, my DB is simple, its one table, and two input fields called "Userid" and "password" this is my code to write a new account into these fields
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I want to read a text file and write the lines on different labels. Is it possible to generate labels?
I tried with four labels with label1, label2, label3, label4 names but I don't know how to create a loop to read every line of the file and write it in every different label. First line in first label, second line in second label etc.[code]...
I am trying to write a simple application that monitors the COM port and writes the incoming binary data to a file. So, I gathered a File class is provided, but looking at its methods list in the Help page, I see no method for writing individual bytes (and the Write methods seem to close the file after writing).
How can I write a byte array into a file, keep it open and repeat this as necessary?
My project is GUI based. I want to write program in vb.net take some input from user and then i hav to genarate hex file so that it can be run on microcontroller. I just want to know weather hex file generation in vb.net is possible or not?
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