I want to generate random number, which is 9 digits including leading zero if the number is less than 9 digits, say 123 will be 000000123. I have the following code which doesn't include leading zero :
Dim RandomClass As New Random()
Dim RandomNumber = RandomClass.Next(1, 999999999)
I have this program generating a firstname and lastname from a file. When I run this program I enter information in three textboxes. The first two are the salary low and high(salary1.text, salary2.text) and the last one is the number of "copies"(copies.text) that I want.. When I put a number such as 10 in the text box it outputs some of the same names. The firstname file has around 100 records and the lastname file has about 1000 records Why is it generating the same name The problem is even worse if I do something like 1000 copies.. it outputs the same thing 8 times and then does something different another 8 times
Public Class Form1
Dim sex As String
Function randomfirstname()
Dim infile As IO.StreamReader
[code]....
I'm wondering how I would go about generating a random number in VB.Net. As I am developing an ATM system for a bank, a randomly generated 4 digit PIN code would have to be assigned to each person.
View 2 RepliesI heard that you have to add some code to a random number generator
results(1) = Int((5 - 1 + 1) * Rnd() + 1)
so that if it is used again and again it keeps generating new numbers as apposed to what this piece of code does by itself which is creates the same number every time.what is the code?
I am trying to make a number be generated as this Windows Form loads, then the user guesses by entering a number and clicking a button to check whether it is correct or incorrect.
I have the code complete, I'm just confused on how to declare the random variable outside the button sub procedure so it only generates one time.
Here is my code.[code...]
I'm using VB.NET 2008 Express Edition and I'm trying to create a simple program that will roll a number of dice I choose. It does this by generating a random number within a specified range (I'm rolling 3-sided dice in this case so I'm generating numbers between 1 and 3) and adding each number to a textbox to create a total of all the dice rolled so far.
This is my
Private Sub butRoll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butRoll.Click
Dim RandNum, i As Integer
Dim RandomClass As New Random()
'if at least one dice is rolled
If txtD3.Text > 0 Then
[Code] ......
Now the problem I am having is that although my random number generator is generating the right numbers (confirmed by checking the txtLastRoll textbox), when I add it to txtTotal, it seems to be getting another number from somewhere and adding that to my random number then adding it to the total and I have no idea how this is possible! txtTotal always starts as 0 but txt1 is not showing that. Normally I would just set txtTotal to 0 there but if I do that, I won't be able to add the numbers together. I've tried finding a pattern in the mystery numbers appearing in txtTotal but they just seem to be random.
VS2010 (SP1) / .NET 4 on Windows XP. The question is simple, the answer; not so much. When generating a salt, should the LENGTH of the salt be random, fixed or a random number within a (min/max) range? I am using RNGCryptoServiceProvider to generate the salt, just unsure of the length of the salt.
View 12 RepliesI have a textbox on a form that I use just for output (read only). After doing some calculations I display the value in HEX string as feedback to the user like:
txtReg0.text=HEX(Reg0) 'Reg0 is a UInteger previously calculated
This seems to work fine except the textbox only shows all the HEX characters if the first character isn't a zero. Otherwise, it shows less depending on how many zeros are leading.I WANT to show all (eight in this case) the characters regardless.
I'm converting a user generated list box to an array and then generating a user defined number of random strings and placing it in a textbox.The code I have works fine as it will generate the number of random strings the user wants, except sometimes a line is blank at the top of the list but is counted as a string.
View 4 RepliesIn my app. I am using this code block to extract numbers from a string in a TextBox.
Dim getNumbers
As String =
""
[Code]....
How can I get the leading zeros (if there is eny) removed from the number tha has been extracted?.
I am trying to draw textboxes when the user enters the amount of textboxes to be drawn on one form and the textboxes get displayed on the another form. I have found these codes online but it works with inbuilt codes I guess. That is, the number is already hard coded in the form.
[Code]...
i am working with Visual Basic 2008 and i wanted to know how u can create a random word?
View 8 Repliesi have a few questions about generating random numbers:1) is it possible for the programme to generate a random number that it has previously generated (i.e could it produce the same number more than once?)2) can you specify what numbers to generate? e.g only whole numbers up to 1000?
View 4 RepliesI have to generate a series of random numbers, say 100, within range of -1 and 1 and scale them by a value, say square root of 2. After which I take those 100 values and their sum = 0. Then scale that sum by another value. Check the code below to see what I mean.
[Code]...
I have an assignment that requires me to create 5 different arrays: nouns, adjectives, verbs, prepositions, and articles. From those 5 different arrays, it has to display 10 different random sentences in the listbox named lstRandomSentences. The sentences have to be in the following order:
<article> space <adjective> space <noun> space <verb> space <preposition> space <article> space <adjective> space <noun>. Each of those arrays have to be randomly chosen in the list box and that's what I am having trouble outputting randomly.
I am working on an application, where I have already normalized the databases. Now I am creating an application in asp.net with vb.net as my code behind fine. These random numbers would be stored in the Id column. So, no way there would be repeating the keys. But my application could generate the key, which would probably get repeated. How would I check the database for, so that random numbers wont get repeated? is there any function? Could you give me the code for the same.
View 10 RepliesIam doing a project in vb2008 for a quiz program. i want to randomly generate questions in a textbox a question should occur once in the quiz session. i had my code:
Imports System.Data
Imports System.Data.OleDb
Imports AgentObjects
[CODE]...
How would I go about doing this, is there a for next loop involved and is there a way not using the for next loop ?
View 15 RepliesWhy does it give exactly the same numbers despite different variables? See below code:Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim MyRand1, MyRand2, Myrand3 As New Random
[code].....
How do I know the original number of digits that appear in this way 5.555555E+36
View 6 RepliesHow do I go about generating a random vector coordinate that is within say 200 units of another vector coordinate?
View 2 Repliesis there a code for generating random letters and numbers?? like between 0 to 9 and A to F??
I used this code :
[Code]...
I need to round like this:
12 -> 10
152 -> 200
1538 -> 2000
25000 -> 30000
etc.
Twisting my head, but can't see how to make this. Must work for any n number of digits. Anyone got an elegant method for it?
Is there a number format in .Net that will display a given number of significant digits, but also NEVER displays in scientific notation (for example,declaring 3 sigfigs you would have 1234.567 = 1230 and .000123456 = .000123)
View 4 RepliesI have a number, e.g. 1.23456789, and need to display 3 digits only, which will be 1.23. Which function can handle that?
View 6 RepliesI'm trying to use a GUID to generate 6 random alphanumeric characters (just letters and number). Is there a way to change the format of a GUID before it is generated. Or must I generate the GUID in its standard format and then manipulate it.
View 5 RepliesI want to do is have textbox1.text show 10-20 characters that are random letters and numbers when i press button1. I have tried to do this but I am not so great with generating anything that is random. If possible have it be a mix of Capital and Lowercase letters.
View 1 RepliesDim strFilename As String strFilename = Format(Now, "ddmmyyyyhhmmss"
That generates the day number month and so on. But i want to generate a string with "VB Code Snippet" then after that just any 5 letters or numbers so it might generate "VB Code Snippet 7ef82"
Recently I tried to make a command which will sum the digits of a number in a text box I used the following code
[Code]...
Does anyone know the range of digits of Motherboard Serial Number?
View 5 Replies