Generating Random Unique Numbers ?
Nov 24, 2011How would I go about doing this, is there a for next loop involved and is there a way not using the for next loop ?
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A Class For Generating Unique Numbers For Invoices / Empid's / Customerid
Mar 12, 2012generating unique ids for invoices,customerids and employee ids, etc. and thought it would be great to share this as i will use it within my aps all the time now.[code]
View 7 RepliesGenerate 6 Unique Random Numbers - Sometimes Get Duplicate Numbers ?
Oct 6, 2011The program must generate 6 unique random numbers but when I click display numbers sometimes it gives me 6 unique numbers and sometimes I get duplicate numbers. I will add the code I have so far.
Public Class frmMain
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
[CODE]...
Generating Random Numbers?
Mar 14, 2012i 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 RepliesGenerating Random Numbers Without Duplication?
Feb 6, 2011I 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 RepliesVB2008 Generating Random Numbers?
Jan 4, 2010Why 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].....
[2008] Generating Random Letters And Numbers?
Feb 20, 2009is there a code for generating random letters and numbers?? like between 0 to 9 and A to F??
I used this code :
[Code]...
Unique Random Numbers In 2D Array?
Sep 21, 2011So I know how to an unique random number in a 1D array but In an 2D array looks so difficult or strange for me[code]...
Is their an other solution for an unique random number 2D array?
Create An Array Of 5 Random Unique Numbers Between 1 And 30?
Aug 7, 2011I am trying to create an array of 5 random unique numbers between 1 and 30. I've been trying for a while and have had no luck.
View 9 RepliesVS 2008 - Generating Random Amount Of Numbers And Letters In Form
Dec 24, 2009I am using Visual Basics 2008 Express edition. I want my program that I am making to generate a random amount of numbers and letters in this form when I click Button1.
WM9RX-GG6J2-4WKD9-FDJWM-TYH76
Is this possible?
Generating A Unique ID Of Fixed Length
Jun 17, 2010I don't know if I can do this here...but here goes. I want to generate a unique ID of fixed length The trouble is, the code example I found on the web is in C# (or C maybe) which I know nothing about. I tried a web-based C# to VB.net converter but the result doesn't work so its hard to understand what's going on (especially since I have not worked with bytes either this makes it more difficult).
[Code]...
VS 2008 Generating Unique IDs In A Table?
Dec 6, 2009creating unique IDs for each row in a table, to avoid duplicates when inserting the data to a server. The table looks like this:
+--------------+----------+------+-------------+
| brikkenummer | tid | post | anvendt_tid |
+--------------+----------+------+-------------+
| 3086360 | 09:43:02 | 98 | 09:43:02 |
[code]....
"Brikkenummer" is the number of a device that each person carries with him/her, and "tid" is the time the runner has passed a specific post. The post he/her has passed is described in the column "post".Out of these three columns, is it possible to generate some kind of unique ID? The ID that is generated have to be the same if a row is displayed twice or more, to avoid duplicate entries.
Generating A Globally Unique ID Of 16 Char String?
Jun 18, 2009I need to generate a globally unique ID of fixed 16-lengthThe GUID is too long for my purpose. So I wonder is there any way to convert it to a 16-length?If this is not possible, I have a program key of 8 chars, and is thinking of using the DateTime as my key.
View 4 RepliesPreferred Method For Generating Locally Unique Identifiers?
Aug 31, 2010I'm looking for a method of generating unique identifiers for a record class being created locally and then persisted in various formats (XML, SQL, etc.) I've seen people using DateTime and GetHashCode, but that seems to lend itself to duplicate identifiers depending upon the sample size. GUID is a bit overkill, as I don't need anything that unique (large) at the global level. I'm also aware of using GUIDs and GetHashCode to get the size down a bit, but duplicates tend to crop up here as well. Any best practice or method for generating simple unique identifiers?
View 3 RepliesGenerating Salt - LENGTH Of Salt Be Random - Fixed Or A Random Number Within A (min/max) Range ?
Nov 26, 2011VS2010 (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 RepliesBug In VB 2010 RC - Class Random - Always Produces The Same Random Numbers In The Same Sequence
Apr 4, 2010The class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
View 4 RepliesGenerating A Random Number?
Mar 9, 2009I'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 RepliesGenerating A Random Word?
Jun 4, 2012i am working with Visual Basic 2008 and i wanted to know how u can create a random word?
View 8 RepliesUse .next (random Numbers) To Randomly Select Something From A List Of Numbers But It Can't Repeat The Number?
Aug 16, 2009So how would I use .next (random numbers) to randomly select something from a list of numbers but it can't repeat the number?I could do:
dim num as integer
dim r as new random
num = r.next(1,5)
if num = 1 then
elseif num = 2 then
etc.
That wouldn't work because it would repeat.If I donwload someone's game can I disect it in VS? :0 I tried going to open project, then I went to the folder and clicked open. It brought me inside of the folder so I tried to open the game but there is no form1 there. It says the games name then .exe in the explorer-like thing in the top right?Also, how would I have a value or something in a label and access it from a button.
Example:This is in a label.
Dim number as Integer
number = 0
Then in the button do
Label.number = 0
How would I do something like that? I want to use that a lot as I did in a different language.
.net - Generating Random Values And Summing Them To Zero
Mar 1, 2012I 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]...
10 Different Random Sentences Generating By Using Arrays?
Jun 29, 2012I 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.
Generating A Random Number Outside Of A Sub Procedure
Mar 19, 2010I 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...]
Generating Random Number Within Specified Range
Apr 7, 2009I'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.
Generating Random Questions In A Vb2008
Sep 5, 2009Iam 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]...
VS 2010 - Generating Random Vector Coordinate?
Jul 16, 2011How do I go about generating a random vector coordinate that is within say 200 units of another vector coordinate?
View 2 RepliesCant Stop Generating Numbers?
Feb 13, 2010im making a program that will generate a number ever 1000mil seconds and when it hits 0 its makes a new time and starts again
i have 1000mil seconds set on a timer and i have this code
If Labelcount.Text >= 0 Then
Labelcount.Text = Random.Next(1, waitTextBox.Text)
[code].....
How To Generate Unique Random Number
Aug 2, 2009I have an application that is made for a game that you have to draw cards for. So what I have done is created a random number generator that generates a random number and then using case statements that number is associated with a picture of the card, which is displayed in a picture box. This part works fine. Each time I draw a card it is not reshuffled so I need to store the random number generated and then if that number is generated again ignore it an generate a new number.
Now to complicate matters even further when a certain card is drawn the entire deck is reshuffled and everything starts over again. Here is what I tried... I tried using arrays to store the numbers but I cannot seem to get it to search the array for the number or store the number properly within the array. The array has to be dynamic since the game is expandable and I will be adding more cards to the game in the future.
Unique Random Number Generator?
Feb 14, 2010For part of my coursework I need to be able to enter some customer details into a form and then to press a button which give that customer a unique reference number.
View 9 RepliesGenerating 9 Digits Random Number Including Leading Zero
Jul 15, 2010I 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)
GUID Format - Generating 6 Random Alphanumeric Characters
Feb 25, 2011I'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.
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