Read A File As A Set Of Numbers Such As Long Integers?
Oct 31, 2009
Is there a correct way of doing this in vb.net? I want to read a file as a set of numbers such as long integers ,say the file contains the string "Hello World - Its a beautiful day blah blah blah" This would read as a set of long integers that are 4 bytes long
ie ascii (hex)
48 65 6C 6C 6F 20 57 6F
H e l l o W o
etc and that would also be an 4 byte word represented as a number 1819043144 thus stepping through the file 4 bytes at a time. Instead of reading and looking for certain words in the file I would look for certain numbers, thus eliminating read errors in certain file types. I coded this type of thing in vb6 before , this would be done with the 'get' method and a file pointer. I have managed to read it a byte at a time with this code but I am unsure where to go with it as the 'get' method isn't in vb.net
Imports System.IO
Imports System.Text
Public Class Form1
I'm a college student, working on a small project, and I'm having some trouble understanding the Round command on VB. The project is very simple and straight forward, just a simple Bail Bonds program to calculate the bail plus a 10% fee. However, i want to integrate a kind of "promotion", where for every $1000 of the bail cost, $5 would be deducted. I know the formula for this, which is reasonable simple, i just need to know how to round the Bail variable to the nearest 1000 so i can do this calculation.
using for...next loop the program is supposed to accept 2 user inputed integers and display all even numbers between the two in one label and all odd numbers between in another label.
Private Sub displayButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles displayButton.Click ' displays the odd and even numbers between two integers Dim intNum1 As Integer
[code]....
I'm not exactly sure what this code is doing. When I put 1 in the first number and 10 in the second number, the odd label only shows 9 and the even label only shows 10. Another example is when I put 2 and 15, the odd label comes out as 15 and the even label is 14. I'm very new to VB and programming in general and have just started getting into for...next loops and don't fully understand what the counter is or how the loop is supposed to work. I guess I'm having 2 problems. One is that I don't know how to make the program find the right numbers(my logic is off? or how I set up the loop isn't right?) and the other is the labels are showing only 1 number each instead of all the numbers in between on their own line.
Am new to programming and i would like your help to this question. [b][color="Red"]Write a declaration statement of an array of integers to store 15 numbers. Initialise the first 5 values.
When I open the Visual Studio 2005 I don't see the template i.e. Win32 Applications, C++
I have written a program that generates and prints 10 random integers from -10 to 10, my problem is that I am returning both negative and positive numbers, aligned right with a pad of 2, but the negative is on the right hand side of my number instead of the left. here is my code, all work but I need to align the numbers and have the correct notation of negative.
I have a text file to read. I need to read one part of the text file and get the specific number than match that number with another part of the text file but same text file. Now i can read one part and get the number. this is the [code]....
So after i get the spesific text that i want to how can i match that value with other part of text file. I attach my text file here.For example the value that i want to find is[code]....I manage to find the first value but i dont know how to match
Basically what I want to do is open a .txt file that contains numbers and then read the numbers into an array and sort them highest to lowest but I don't know how.
How is it possible to deal with incredibly long (large) numbers in vb.net?I am working on Problem 25 in Project Euler, and my program cannot handle these computations.Is there a data type that can handle thousands of digits?
I know how to read user input using textbox but it only can read character and numbers. Is it possible that I want to read user input equation?
Example:
User type A+B User put range of A and B. 1.25<A< 3.56 2.45<B< 9.87
I failed to read the equation using textbox. Is it there are other ways that can use to read equation input A+B?I am using VS2005 and VB.Net. I really new in this programming using VB.Net.
I tried coding for an application that will display the positive integers, negative integers and zero entered in a inputBox. for some reason it keeps crashing down.here is my code. paging all visual basic professionals. [code]
Basically I have and array of integers that vary in size. I need to compare each number to each other number and display which number is repeated. For example:
Dim ints() As Integer = {1,2,2,5,4,6}
The number that shows up more than once is 2.
How can I run through the array and compare each integer with the numbers in the array. I tried a for loop but it didn't return the value I was looking for.
Is there a easer way of coding in stead of wrighting long long paragraphs like this in one line [code]All of this is on one line and i got lots of info to put down.."The game will begin on your 16th birthday with your mother waking you up. Today you are to go to the castle for the first time. Leave your bed and open your dresser for a Strength Seed. "
I'm writing a program to search files.The result is saved in a text file.Everything it's working fine, but when I say to look for files/folders in C:* the process takes long time and in task manager it's displayed as "Not Responding", this is not true because I see that CPU and RAM are working with this process.I've disabled in DEBUG OPTIONS the line "ContextSwitchDeadlock" just to prevent the error message "this operation require long time ... bla bla bla".Is there any way to display a progress bar or something like that that shows the program is running and it isn't "hang"?Here's my code (in red the line where the program hangs):
Code: Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim cartella, scelta, cosa As String
[code]....
I think that it's like when you type in the command prompt "tree" it doesn't hang... I know... it's not the same thing but...I'm using Visual Basic 2008 Express?
I'm using Visual Basic 2005 Express. I've got a simple problem, I need to read 20 numbers, between 10 and 100 inclusive. As each number is read it should print, only if it is not a duplicate of a number already read. I should be using a 1 dimensional array that is as small as possible.I went ahead and made the 20 numbers random, instead of just plugging in numbers into an initializer list.
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,
I have a csv file with say 20 lines of 6 numbers. I need to be able to select say line 14 and then load the 6 numbers into a set of 6 text boxes. I can get them into the text boxes once they are loaded into an array, it's getting them into the array I am having difficulty with. I ahve tried numerous scripts form off these forums and the net but can't get one where I can specify which line the information comes from.
In Visual Studio 2008 I am using :Private Declare Function BlockInput Lib "user32" (ByVal fBlock As Long) As Long To stop input from occuring during a search-replace operation.
BlockInput(True) ' do not allow input during search and destroy Dim cursorIcon As Cursor cursorIcon = Cursor Cursor.Current = Cursors.WaitCursor
Then setting it to false at the end of the operation. It did not work, so I thought maybe it was because I was calling it from a child window, so I created a function in the mainwindow, and ran it like this:
FrmMain.BlockFrmMainInput()With these functions is the Main window:
[Code]...
It did not solve the problem. I thought maybe it was because I was running under the debugger, so I tried compiling and running it debugger-free, but that did not do any better. I am still getting input when I double-click the mouse on either form.
1. Code do you code to read what this scans. 2. Does the reader just read the numbers added to the buttom of the bar code? so with that i could look an item up in a database?
Iam trying to write code that read integer numbers from user (intered in form) and put it in array and then i will do some calcuation.I declare The array z and index of array p at begining of the class (global), I dont specify the size of arry couz that it depend on user.
If CInt(l1.Text) >= 0 Then z(p) = CInt(l1.Text.ToUpper) l1.Clear() l1.Focus()
I am trying to execute a program with switches that ends up with a shortcut being too long and exceeds the 260 character limit for shortcuts in windows XP:
Here's the (Timer1's interval is set to "1" in the designer, and it is set to "Enabled" in the designer as well.)
vb.net Public timeElapsed As Int32Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click timeElapsed = 0 Timer1.Start()
[Code]...
The issue is, timeElapsed always comes back as equaling 0, so fileCopySpeed always equals infinity. Also note that test.dat is a 100MB file. There's no way it's getting copied in under 1 millisecond!
I am making a program that loads, edits and saves 5000 rows x 100 columns of data. The data is stored in a datagridview. I use these commands to write the file:
dim z as integer dim z1 as integer fileopen(1,"c:drawermyfile.txt",openmode.output) for z=0 to datagridview1.rows.count-1 [Code] .....
Every time I issue this command the whole program freezes until the computer is done writing the file. Is there some way I can get it to write this file without freezing up the program? Or, perhaps a better way to write this large data file?
