Generate A Random String Of Numbers And Letters?
Jul 17, 2010How can I generate a random string of 8 numbers and letters?
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VS 2005 Generate A String Of Random Letters / Numbers?
Jun 16, 2009I made a small license generator app with a datetimepicker, a textbox and a button on the form. When I ran the app and clicked the button to generate a license I got - 16DDD-06DDDD-09DDDDD, and each subsequent button click would get me a license with a different generated character (16444-064444-0944444, etc...).
I thought this was unusual as it should be generating a random character not a repeating one, so I stepped through in debug and the characters generated were random (161g2-06T5ip-0957H9k). I thought perhaps that I needed to seed the value with Now().Milliseconds, no luck, that still resulted in repeating characters. So I tried sleeping the thread and that generated the random values I wanted.
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Generate Random Alternate Letters And Numbers?
Apr 6, 2012What I am trying to do is create a form with a button and a list box. When clicked the button will generate a list of 3 or 5 characters that have alternate letters and numbers...eg.
q2h
a6j
z4p
d9k
[Code].....
To complicate things a little, each combination needs to be different, ie. randomised but still according to the 'letter,number, letter' formula. There are plenty of examples of randomising strings such as passwords but I cannot understand how to achieve the above.
Generate Random Numbers And Letters Combination?
May 23, 2009I want it so that when someone clicks a button it generates a code in the format of XXXXX-XXXXX-XXXXX-XXXXX-XXXXX I want them to be letters and numbers combinations
View 10 RepliesHow To Make Random String Of Just Letters And Numbers
Jan 17, 2012I have to (for class) make a program that generates a safe passwords for people to use. My teacher wants us to make the passwords vary in length, include numbers, letters and upper case letters. I've been able to write code that prints out a random string but it includes unrecognized characters for most passwords. How would I write the code to create a random string that has parameters? (in this case upper case lower case letters and numbers).
View 9 RepliesGenerate 200 Hundred Characters (Letters) At Random?
Mar 21, 2009i am trying to generate 200 hundred characters (Letters) at random but i m get only 10 numbers!! also i need to search for vowels and their position this is what i got so far.
Private Sub btnGen1stchrblk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGen1stchrblk.Click
Dim randomChar As String
Dim randomInstance As New Random
randomChar = "abcdefghijklmnopqrstuvwxyz"
randomChar = randomInstance.Next.ToString
[Code]...
Generate 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]...
[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]...
VS 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?
Generate 10 Random Numbers Between 1 And 52?
May 1, 2012'm attempting a program and need to generate 10 random numbers between 1 and 52. However all the numbers must be different. I'm trying this in a For Loop. I'm not terribly amazing at this so all I have so far is:
Dim B, I, J, max, min, card() As Interger
max = 52
min = 1
Randomise()
[Code].....
What am I doing wrong and what is the ultimately simple solution I know the internet can provide for me?
Generate Numbers At Random
Jan 9, 2010This code is in VB6.0I have 28 numbers in sequence (eg 1-28), they are randomly generated and displayed in a label. I dont want a duplicate number displayed in the label. Pls how do I do this. Below is how I generate numbers at random. Now I want to make sure there is no duplicate number displayed in the label.[code]
View 12 RepliesHow To Generate Random Numbers
Aug 30, 2009So if you have one button and one textbox; whats the code so when you press the button the textbox comes up with a random number?
View 13 RepliesWay To Generate Random Numbers
Oct 14, 2010I have this school assignment to generate random numbers.Can someone please check if this is the right.Also i am not able to Generate this many numbers in the specified range and keep track of how many of each are generated in an array of counters.[code]....
View 35 RepliesSending 'mypassword' To Database Send A Random Collection Of Letters And Numbers
Oct 21, 2011So in my program I have a database where I send info such as passwords, is there any way to (in an easy way) encrypt the password before sending it so instead of sending "mypassword" to the database I send a random collection of letters and numbers like "shH3n2ja"? I only need two functions, encryptPassword, decryptPassword.
View 7 RepliesForms - Generate Two Different Random Numbers
Dec 17, 2011I need to generate two different random numbers but this:
Dim r1 As New RandomDim
r2 As New Random
l1 = r1.next (0,1000)
l2 = r2.next (0,1000)
give me random numbers, but they are same any suggestions?
Generate Random Confirmation Numbers?
Sep 6, 2011I have an attribute that I just added to my database to hold confirmation numbers. The only problem is they are all null so I am getting errors. Thus I need a method to generate random confirmation numbers (no duplicates). The column entries have a max size of varchar(20)
Solution:
randNum = Replace(Guid.NewGuid().ToString(), "-", "")
randNum = randNum.Substring(0, 19)
[code].....
Generate Random Numbers In An Array?
Feb 3, 2011Generating random numbers in an array HELP
View 6 RepliesGenerate Real Random Numbers?
Jun 30, 2009I need to generate 'real' random numbers from 0 to 500 (e.g. 247.214, 477.125, 1.247, 54.078, 147.001 ......etc). I am using this method:
Dim Myrand As New Random
Dim Res As Double
For i = 1 To 10
Res = Math.Round(Myrand.NextDouble, 3)
Next
This method gives numbers between 0 and 1. if I use: Res = Myrand.Next(0,500), then this gives Integer numbers.
The questions is: Is this possible with (Dim Myrand As New Random) or I have to try another way (e.g. Rnd() ) for doing this?
How To Generate Four Random Numbers Equal To 100
Mar 15, 2012i will like to generate four numbers at random, that will total 100 and assign each to a textbox.
View 6 RepliesVS 2008 How To Generate Random Numbers
Nov 22, 2011i'm programming sudoku game for my vb 8 class.but i don't know how to generate random numbers, i think that i've to use random or randomize, but i don't know how to use them, i've been looking around but i can't find an answer.and i only have this week to program it
View 10 RepliesVS 2010 : First Generate Random Numbers?
Oct 6, 2010I have code to save records to my mysql database.But first I want to read what is the last number of record and add 1000 on that? What is the proper way to query that first. I want to make the result at unique ID of my clients. Here is my chunks of codes.
Private Sub addClient_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim conn As MySqlConnection
conn = New MySqlConnection
With conn
[code]....
Generate An Array Of 5 Random Numbers (with No Repeats)
Dec 12, 2009I'm trying to make a Bulls and Cows type game, I was able to do it fairly easily with javaScript, but VB is killing me. I can get the array 5 slots long with random numbers, unfortunately they're all repeats. when I try getting no repeats I run into infinite loops, exponentially increasing array lengths, and just plain old arrays with 5 numbers randomly generated, but with repeats.
I'm trying to do this with loops, in JS I did it using regular expressions
Here's an example of my code.
Public Class Form1
Dim intRand(0) As Integer
Dim RandomClass As New Random
[Code]....
Generate Random Confirmation Numbers (no Duplicates)
May 15, 2012I have an attribute that I just added to my database to hold confirmation numbers. The only problem is they are all null so I am getting errors. Thus I need a method to generate random confirmation numbers (no duplicates). The column entries have a max size of varchar(20).
[Code]...
Generate Random Numbers And Display Them In The Label Box
Apr 17, 2012I have created a form that generates random numbers and displays them in the label box. my requirement is to show the numbers in ascending order, so i created a button for each number to be displayed in a each list box. how do i get i to display in the listbox?? Also how do i get it to check and display msg to say whether its in asscending order??
View 3 RepliesGenerate Specific Amount Of Random Numbers?
Oct 3, 2009Trying to create a form where user enters a lower bound, upper bound, and an amount of random numbers to generate (that are between the lower and upper)
I was able to get it to generate random numbers but only 1 per a click of the calculate button...I would like user to be able to click button and it to generate and display all the numbers on seperate numbers all at once[code]...
Receive A Number Of Random Numbers To Generate?
Feb 26, 2012I'm so confused. Please help me with this program. My teacher wants Receive a lower bound and an upper bound of a range.Also receive a number of random numbers to generate.Generate this many numbers in the specified range and keep track of how many are even, odd, negative, 0, and positive. Do not save the numbers, just the category counts.
Lower bound must be less than or equal to the upper bound (negative or positive or mix).Number to generate must be greater than or equal to 1.Use the GetInput Boolean function (written in class) to retrieve the numbers for data validation, however it must be changed from Double to Integer. Then use additional functionality to test whether they are in the specified ranges. For example, if you successfully GetInput for LB and GetInput for UB, then test LB <= UB. If successful, continue with GetInput for Number to Generate and check >= 1.
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Way To Generate Random Numbers For A Program Working On
Feb 22, 2010I am a newbie programmer and I need a way to generate random numbers for a program I am working on. It just needs to be something simple that generates a number and allows me to assign it to a variable. I would like it to be something small say 1-10 would be good and an explanation of the syntax would be helpful
View 9 RepliesGenerate Random Numbers Which Will Be Put In An Array And Displated In A Grid
Jul 28, 2011i want to generate random numbers which will be put in an array and displated in a grid. the user has to provide a lower and upper bound. method overloading also has to be used in order to generate the numbers
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How To Generate Random Numbers At Regular Time Intervals
Sep 29, 2009I want to generate random numbers at regular time intervals. I am putting the random generation in a loop which works when a button is clicked. But since the Timer itself is a control, I don't know how to do it. I tried putting the timer in a module so I can access it inside the form.
But the following error occurs:
"Error 1 Handles clause requires a WithEvents variable defined in the containing type or one of its base types".
When I doubleclick the timer icon the code appears as follows.
Public Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
End Sub
Using Library From GNU In VB2008 To Generate Random Numbers With Uniform Distribution?
Aug 4, 2009Im trying to use the library in GNU in VB2008 to generate random number with uniform distribution (actually will also use it for other distributions)...I already added dll under bin file and try to run the following code, but just cant make it work:
Public Class Form1
Declare Function gsl_rng_uniform Lib "C:vbuniformuniforminDebuglibgsl.dll" (ByVal x As Double, ByVal y As Double) As Double
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