I'm sort of new to VB and have to use it for my Software Design & Development Major Project.I'm making a blackJack game, and i the names of all users in a file called "CurrentUserNames.txt".I'm struggling to get VB to read this file (items are line by line not separated by a comma or something) and then save it into an array called CurrentUsers(). This array is then displayed in a listbox called "lstAllUsers".I can get VB to read the file and put the FIRST item in the file into the FIRST line of the list box, or i can get VB to put ALL the items in the file into the listbox, separated by the little [] squares when the program runs e.g listbox, line 1 says - "Current [][] Names".[code]
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
So I am trying to learn vb.net and am a beginner. I find alot of online tutorials, but have yet to find one where I can follow what I'm attemping to do, just bits and pieces. I want to keep the code basic until I learn more, and in this case use two - one dimenstion arrays. I built a program to write Employee Names and Wages to a txt file.ie.
Jack Black vbtab 60000 Nick Mole vbtab 45000 and so on
I want to bring back that data and place the name and the and wage each into an array so I can calculate different criteria when I hit a search button. I will not know how many names and wages will be written to txt file. I am having trouble understanding exactly how to do this as all the examples I've found list only one array or the txt file is line by line like.
Jack Black 60000 Nick Mole 45000
Everything else I've found is over myhead so far.Here is my code so far if anyone can let me know where I'm going wrong. I have one error that tells me "property chars is read only". I have no idea what that means, even after reading up on it really...and I'm not sure if the rest of the code I've wrote is 100% anyway I assure you that I've spent more than a few hours trying to solve this myself.
specifically reading from a text file, and placing that into an array.
But the problem is, that in each line of the text file, I have at least three different separators. Sample:
14~8|3~7|16~5|7~4|1~2|3~1|_17 12~12|5~10|2~8|5~7|_0 etc.
[Code]....
So, what I want to do, is read each line of the text file into a separate item into an array, and each item in that array is a record of another array(of terms) and a single(constant).
I've already got SOME code, but I'm pretty sure it's not going to work, and I don't know much about reading from text files and string manipulation in the first place.
i am trying to read from a text file and store the data in an array but i don't know how to get started with my code. can someone please get me started here.i have start with the code for locating the file, but i am having difficulty reading the file.
Dim strFileName As String OpenAnswerFile.ShowDialog() strFileName = OpenAnswerFile.FileName
I'm trying to use VB.NET to process a very large plain text file (2 GB). It is a database and has a field delimiter of SOH and a record delimiter of STX.
I want to separate the fields and records of the file.
I would normally read each line of a text file and then use the split function to separate out the fields. I can't use this approach as there isn't always a delimiter on every line.
Is there any way to read a file until STX is found (rather than one line at a time)?
I have an assignment where I must read the information from a text file into an array of structs, so that when a part number is input, the correct price will be displayed.
the file is a text file named shoeinfo.txt
it looks like this: BZB34,40.99 BZJ25,54.50 JMM97,14.99
[Code].....
unfortunately I am unable to figure out how the code is to be read into the array. i.e. item(0).partnum = BZB34 item(0).price = 4099D
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
I need to implement a routine to read a plain text file, BUT that file has a predefined format.The file format is as follows:
Quote:
<FILE_PROPERTIES> 'The "< >" also appears Propertie1="String" 'It's possible to have spaces after or before the "=" Propertie2="String" Propertie3="String" PropertieN="String"
[code]....
Is there any Windows API Routine to read something like that?Or could you point me an URL where something is implemented?I don't want a procedure to read the file line by line and comparing them with Line Input because blank spaces, empty lines and comments starting with " // " may appear too, and I don't want to take them into account, but also I need to save changes to the file, but only to the modified section, without having to read the whole file, and re-write it completely.
Binary access can't work, because I don't know what's the size of each "section", since the number of elements into it can change. I need something like the "ReadINI" Windows API Procedure, but allowing me to read the "[XXX]" sections headers, and also the "<XXX>" file title header.
read data from text file , 3 data types saved on the file, "location", "time","sighting" eed to extract all data from file and save on a 2d array and display on a datagrid view.ata sorted by ascending order of time.
Im trying to use File.ReadAllLines to read a DLL that has plain text. (the DLL is basically a text file) [code] The process cannot access the file '****DebugNewFile.DLL' because it is being used by another process.How do I use readalllines to find text? How do I use readalllines to only search a part of the text file?
I know this script [below] gives the pc motherboard number ,...well I would like to know how to write the result number as plain text somewhere in the windows, in a folder, or registry , or in a harddisk volume,... I know I could use
FileSystemObject CreateTextFile
I dont know how to insert it in the code , I tried but it gives me error
Code: strServer = "." Set objWMI = GetObject("winmgmts://" & strServer & "/rootcimv2") Set objInstances = objWMI.InstancesOf("Win32_BaseBoard",48)[code].....
I must use streamreader to read text file line by line into array.
Here's what I've got.
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click Dim numbers() As Double = New StreamReader(txtfile.Text) Dim numbersarray() As Double
I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
I have a desktop application displaying text in a read only RichTextbox component. Some words in the text needs to be highlighted depending on a text analyze that was previously executed.Now I need to create a web version of this application.I know there's a couple of Rich Text Editors available but I would like to know if there's a library or a simple way to generate an properly tagged HTML string from a plain text and a list of word to highlight?
I have a program, that allows writers to save there quotes. The quotes are saved in a xml file. Everything works as it should but when I load a saved quote it still comes up in xml format. I need to load a saved quote in a plain text format and I also want to be able to give the output file print functionality. I was thinking of making the output file a html file which opens up in a web browser, this of course already has print functionality, is this at all possible.
I'm writing a replacement for an old library we use at the office to communicate with a rather clumsy and old custom-made C++ framework that takes requests via sockets in order to communicate with a bunch of other systems. The problem is that it will only take plain text messages containing a string which must be formatted in a very specific way.The problem I'm facing is that I haven't found so far a way of sending plain text through the socket. The Send method of the socket will only take byte arrays, and while the listening point receives the data, it gets there completely scrambled, and there's no way I can mess with that in order to convert the byte array back to plain text. I need to be able to send plain text, not byte arrays.[code]
I want to open a text file from a url (example: http://domain.com/mytext.txt)
and then load it into array. (Separated by new line)
I have another question. I'm thinking to develop a simple chat application. I'm thinking to write/read all chat messages in xml. is the idea logical for chat application development?
I am using Visual Studio 2008 Pro to create a web application in Visual Basic. This app takes the information filled in by a user and then sends it to various people. Some of these people get the email in HTML, the rest in plain text. However, whenever I use the code below to send the plain text email, when the email arrives in my Outlook 2010 Inbox it is completely blank. If I leave the code alone and change only .IsBodyHTML from False to True, it works (it sends the email formatted for HTML).[code]Also, if I create an entirely new web app, using only this code, it sends the email correctly as plain text.
i am programming a note and i save the plain text of the richtextbox1 to a notepad then i want to print it i use this code but it print the frist line only and i want to print all lines Private Sub SaveToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripMenuItem1.Click
I'm working on a project that requires me to take values from a CSV file. I've to do further processing with these values and it'd be great if I can have these values in a 2D array. The number of rows and columns of the CSV files changes at regular intervals.I'm unable to take these values into a 2D array in VB.NET/C#.[code]
im really new to vb.net and really need to finish this project.So what i want to do is read from a .txt file.This file has loads of proxy IP addresses and is stored in this form, (as a list) i want to (using an array most probably) be able to select one proxy off the list in the txt file. I then want a variable that i can change so that i can hook it up to a timer so i can change the proxy every thirty seconds or so.(does not have to be random selection, what ever is easiest)
The underlined txt is what i need help with, i can do the rest myself, this is my code although it probably would be a good idea to start over because im un sure what i am doing
Just like the notepad, it will not allow you to paste any picture in it, and it will convert all formatted text to plain text. It will not change the content of the clipboard, it just like a filter... Is there any way to do it in VB.NET?My program screenshot:
I had a solution in my brain but I think it is not the best... The solution is reformat the text with richtextbox1.font=myfont after any time I pasted, but it still can paste the other thing like object and picture..
I have a file C:\level1.txt that has a long row of numbers 0 or 1 to represent a green or red tile drawn.For example here is the txt file I am using right now: [code]This is the EXACT formating of the txt document.The issue on hand is I am unsure if this data gets written to the array correctly, since all my "tiles" are red.Here is the code I wrote: NOTE: Just add a 250 by 250 picturebox1.[code]
I need some input on what I'm doing wrong. What I have so far is an order form program where customers input their information and what they want to buy. Now, what I'm trying to do is take the customer information, store it in an array, write the customer information to a file, and then when I open the order form, it loads the customer information file and automatically fill in a display box on another form with all the customers and the information.I want each customer in a file to be stored on one line. Like so: (Name, address, city, state, zip)
Mike-123 E Dream Rd-Denver-CO-99558 Jane-234 E Code Rd-Seattle-WA-99458
Then when the file is read, to read it, and add each name to a structured array (customers(NumberOfCustomers).Name, customers(NumberOfCustomers).Address, customers(NumberOfCustomers).City, customers(NumberOfCustomers).State, customers(NumberOfCustomers).zip).
After it has all been added to the array, all customers in the file, I want to loop through the array and display each customer on a new line in a listbox, which opens in another form.So far, everything works IF I don't write to a fail. If I store the customers in an array and use a loop to display the customers in the listbox, all is well. However, when writing to a file and trying to read it back into the array is where I've hit a problem. The following code seems to work well, however, it just reads the first line over and over as many times as there are lines in the file, and displays all those using the loop. I just need a way to loop through the lines and store each line into each structured array for each customer, instead of read the first line 12 times over into 12 different places in the array.
Code: Private Sub weeklyTextBox_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'disables and enables correct buttons for initial start
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 have a DataGridView in a Winforms application containing a collection of items. Each item has an image and various other details. I know it is possible in WPF, but can you get a tooltip to display an image and a more structured set of details then just plain text?
