I have been having some problems with my Visual Basic. In trying to figure that out, un-installing, and reinstalling, running virus scans, etc, I have lost a lot of my time to get this assignment done. I would just keep messing around with it and try to be further along, but I must move on.
We have a form application with 3 tab pages. The first tab page takes input for first name, last name, phone, birth month, and birth year in textboxes. This info is to be written to a file. The next tab page has a read button that then displays the data into a list box. The next tab page has a text box to take input for a birth month and then searches through the file and lists any file that matches that birth month.
The whole thing then needs to be serialized and deserialized.I will post what I have so far. My first question is what do I need to do to get it to read into the listbox? I have tried multiple things. None work. After the issues I had with my visual basic, I don't know if for sure it is me, (most likely), or the software.For the display, we are supposed to use an overloaded ToString method in another class. Do I have to use an array?
how do i read the first line of text of every text file in a folder and populated in a list box. Also how do I get it to show the file name in a text box when you select an item in the listbox
this code needs to be modified to be able to enable the user to select a file in which to store grades. The application should allow the user to write any number of grades into that file and it should write one grade per line. Then it has to be modified to allow the user to specify the location and name of the file containing grades. The application should read the grades from the file, then display the total of grades and the class average.I have it writing to the file fine, but I can't get it to read from a file.Imports System.IO ' using classes from this namespace
Public Class EnhancedClassAverage Dim fileWriter As StreamWriter ' writes data to a text file Dim FileName As String ' name of file to save data
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
I'm new to VB and new to programming in general. I'm working on some code for school which I'm taking online, and the book doesn't do a very good job of explaining how to do this. The array in the txt file contains this info.
[Code]...
I have a list box, which will contain the item numbers and then a price label which will contain the item price. Here is the code I have, but when it reads from the file, it puts all information from each line. I understand why it does that, I just need to know how to set it up to read it as an array.
I'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 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
I am trying to import a TAB (NOt comma) delimited text file into a DataGridView. The following code works fine if I have a comma separated file. All I have to do is change the FMT to "Delimited".It just does not work with FMT=TabDelimited. All columns are read into single datatable column. The text file is ANSI text and I have double checked to make sure Tabs are tabs and not spaces, even exported a sample Tab Delimited file from Excel.Can this even be done using Text Driver? [code]
How do I play a WAV file while the computer is reading aloud a text file? It uses Text to Speech synthesis and I need a laughter wav to play when the computer comes across something funny in the line.
I'm a little new to VB, and I'm in a class for it, but I'm trying to do something we aren't going to learn in the class (mostly out of sheer interest) and I need help. I'm trying to read lines from a text file into a listbox, each line representing a new item on the listbox. For example, if the text file reads: [code]I want to be able to take that as is and read it into a listbox, where those words would appear in the exact same fashion; as a list, each as separate items. I've looked at the Help stuff and learned (sorta) about delimiters... but the thing is I don't want to write my entire list in a continuous line separated by commas--I want it to keep reading each line, and moving on to the next, until there are no more lines left. I am thoroughly stumped, and would appreciate it SO much if someone could help. For a frame of reference, this is the point I'm at now with my code: [code]Note that when I run the program, all it will do is read the first line of text available and stop; once I press ENTER in a text file, it decides to stop reading.
im trying to read a online txt file and its not working [code]but it has a uri error i think in doing it wrong but need help with how im doing it wrong, all i want to do is read the text from a file online not from the system should be easy.
Usually, the text file that would need to be read and processed would be local (on the computer the program is run), but for this example, we need to get the data from an online text file.
I have searched on google for nearly an hour now and haven't found anything of any real use. One of the earlier projects we submitted used a similar target, and I managed to get it working fine, however I dont have the original source code with me and I cannot remember how I did it.
I believe I used a Net.WebRequest method of some sort, because I had tried using StreamReader and ended up with an URI error or something like that.
I have just recently been using VB 2010 after using VB5. I have noticed a lot of changes. The problem I have is that I wish to open and save text files to and from arrays in the background. I've attached what I would do in VB5. I have searched around, but all the examples I find use a Textbox instead of an array. Can anyone show me how I can do this with VB 2010?
I want to read the text file and check whether its contain the specific string or not at the end of the text file. If it doesn't contain the specific string, I want to append the text file to write the specific string.. Can I use this code? But its not working..What is the problem actually?
Dim line As String = "" Dim fileName As String = "C:\Drill Blind.txt" Dim sr As StreamReader = New StreamReader(fileName)
I have a fixed width delimited text file, the data spans over several line. I do not know how to approach in reading this file and displaying its results to a gridview.
How could i echo individual lines?, Like for example if i want to echo the hostname line, How could i just echo 'Christopher's Testing server', and not the hostname part too?
I want to know how you would read in from a text file line BY LINE with timer and put it in a Listbox. Lets say I want to read this text from text file
1234232123 12342321 234223423421 23423233
Now i set the timer interval 300 and debug, i expect this to put each number in the listbox. I tried doing this but i failed
I want to check if a textfile is in a CD, read the file, and if it contains the text "blahblah", do something. If it doesn't, MsgBox("Error!"). :P I only know how to open and close the CD drive. >_<;
In my project i read text file line by line by checking with a specific word and store that line into textboxes.
My code id
Dim fName As String = " Z:\rdf1.txt" 'path to text file Dim testTxt As New StreamReader(fName) Dim allRead As String = testTxt.ReadToEnd() 'Reads the whole text file to the end
Here is my code for splitting "," from the text file. But the problem is I don't know how to include looping in the code to make the code read the whole text file. when I run this code, it's only read the first line of the text file.
Dim sr As StreamReader = New StreamReader("C:\drill.txt") Dim data As String() data = sr.ReadLine().Split(",")
Using sr As New StreamReader(NewSwitch.ActFolder & NewSwitch.ActSShowName) worker.ReportProgress(LoadSwitchProgressType.Normal, "Loading Active SupportShow, size " & NewSwitch.ActSShowSize & "...") NewSwitch.ActSShowData = sr.ReadToEnd End Using
Obviously it reads a file - a 20M text file to be exact. Now if this 20M file is on my PC, it reads in about a second. If i open this same file in a text editor, such as Conext, its about the same.However, if this 20m File is on a network location, the Context text editor loads the file in about 1 min 40 seconds. I would have expected similar times with my vb.net code, but it took 7 minutes 45 seconds.I have no idea what the text editor uses to read a file, but i figure i must be able to get similar time in vb.net somehow.
I am creating a hangman game for a class prject. I have done everything apart from randomising the word that is loaded in. I have tried a few different types of code but just can't seem to get it. I have tried this:
Im doing some work right now for a class and this is my first time ever using arrays and im having some trouble. I need to make a program that places the names in an array using a text file and displays all presidents for a requested range of numbers. every time i try and run the program it says "Object reference not set to an instance of an object." but im not really sure what that means, Heres the code
Public Class frmPresidents Dim numLow As Integer, numHigh As Integer, Pres() As String Private Sub btnPresidents_Click(ByVal sender As System.Object, ByVal e As
I am trying to create a program that will refresh a *.log file within the program itself (in a RichTextBox), but while the actual application that is writing to that *.log file is open and is utilizing that file as well.
I have tried multiple things with StreamReader, but I can't seem to get anywhere...
Simply, I want to be able to read a *.log file in my Visual Basic 2010 program, but while the actual application that is writing to it is running itself.
How can I do this, as I keep getting the error that another process is utilizing the *.log/text document?
My problem is I have very large text files (approx 2GBs+).They have records in them based in one per line.Each line is not the same length and the data can be different lengths all the time.I am currently reading the file line by line, then splitting the data by common characters in the records. To process the full file it currently takes 3hours. This is way too slow for its purpose.
