Randomize Repeats Same Number?
May 23, 2012
I've seen a few other people ask this question and have tried the responses that they have had with no luck.
I am trying to use the randomize command to generate a truly random number. What I am doing is reading an access table to get the number of records, then seed the randomize statement with that number of records with the top range for a random number. I then use the number to select the record I want from that table via it's ID number. My code for doing that is working great.... except that it is always calling on the same record each time through the loop. Here is the code.
[Code]...
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Aug 7, 2009
I'm trying to shuffle a Euchre Deck and it works but I feel like I'm cheating. Is there a more concise way to randomize a list of numbers 1 - 24 and have no repeats? ex. 14, 3, 18, 23...
Dim Deck() As String = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24}
Dim A As New Random
Dim B As Integer = A.Next(0, 24)
Deck(B) = "9 of Clubs"
[code]....
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Feb 2, 2010
I dont have anything to handle it when its full but it never gets there. I need it to pick a random number from 1 to 60 that doesn't repeat but i keep getting a system.stackoverflowexception and it will repeat numbers.
num = RandomNumber.Next(usedcountries.Length - 1)
'TextBox1.Text = num
If first = True Then
usedcountries(y) = num[code]..............
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Mar 25, 2012
Beginning VB 2010, had a project that requires us to create a list box of 25 randomly generated 0s or 1s. Problem is when I put the loop in, it only repeats the same random number, not different one each loop. What am I doing wrong?This is the code I have so far...Code in Question:
'Declare new random object
Dim RandomGenerator As New Random
intRandomNumber = RandomGenerator.Next(0, 2)[code]......
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Mar 29, 2010
I need to use the randomize function to generate a random number between 1 and 50 for lblNum1 and lblNum2, ensuring that lblNum1 is greater than lblNum2, otherwise the randomize function needs to run again for lblNum2. I need to ensure that the user has selected an option from the gbCalcType and cboGrade first, and then the randomize function should run when the user clicks the button named btnBeginGame. How do I do this? I have this so far that generates the random numbers when the btnBeginGame is clicked:
[Code]...
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Mar 30, 2011
I cant figure out the code for vb.net that would randomize the interval of a certain timer. For each a = a + 1, there would be a different interval, and for each a = 1, a = 2, a = 3 etc. there would be a different text that will be shown on a label.
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May 20, 2011
I can’t figure out the code for vb.net that would randomize the interval of a certain timer. For each a = a + 1, there would be a different interval, and for each a = 1, a = 2, a = 3 etc. there would be a different text that will be shown on a labe
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Apr 14, 2011
I'm trying to create and start a thread(s) that execute certain sub continuously.[code]
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Jul 12, 2011
I'm down to the final coding on one of my projects, when i notice that the backgroundworker behaved strange. For each time i run the backgroundworker, it repeated it self one more time, and the new time, it repeated one more time.
So, if i run the worker a third time, it would repeat it self 3 times.
First run: Runs one time
Second run: runs twice
Third run: run 3 times
And so on.
So, i'll post all the code from that form.
Here goes.
CODE:
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Jan 7, 2012
I am a complete newbie at vb trying to design a quiz where the user will be presented randomised images to grade. I am at the stage of writing code to randomise image without repeating. Images are stored in imagelist (not sure if this is the best way to 100 images - I've read a few posts about limitations of imagelist) and are being randomly presented in picturebox. At the moment my code loops around continuously with repeats. However I would like it to present images randomly without repeating. Here's the randomise snippet of my code. Hellllppp! it loops round and I'm not sure about to remove images.
[Code]...
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Apr 24, 2012
Here's the code:
'Determine and Display User-Selected Major Chord
If Me.tvChordExpressions.SelectedNode.Name = "NodeAMajor" Then
'display chords
Me.pbMain.Load("D:Visual Studio 2010ProjectsMusicaMusicaChordsMajorA.jpg")
'play A Major Chord
My.Computer.Audio.Play(Application.StartupPath & "Audio ChordsAMaj+10.wav")
End If
[Code]...
this works great, however the problem is that the audio file (A Major in this example) will repeat playing every 4-5 seconds. Question?...Why and How do I stop this?
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Jan 6, 2012
I am trying to design a quiz where the user will be presented randomised images to grade. I am at the stage of writing code to randomise image without repeating.
Images are stored in imagelist (not sure if this is the best way to 100 images) and are being randomly presented in picturebox. At the moment my code loops around
continuously with repeats. However I would like it to present images
randomly without repeating. Here's the randomise snippet of my code.[code...]
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Feb 3, 2010
I am trying to write a program that gives a random number with out repeats the limit is 60 right now. I get a System.StackOverflowException error randomly sometimes it could be 5 numbers in it could be 50. also it will repeat some numbers. Ive been looking over it and it looks like it should work to me idk why its not.
BTNgen calls this sub.
Private Sub gen()
If y = usedcountries.Length - 1 Then
BTNgen.Enabled = False
[Code]....
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Dec 12, 2009
I'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]....
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Sep 4, 2009
I'm wondering if anyone else has encountered this in visual studio 2008. I'm writing an asp.net app and when I run through debug it's jumping all over the place. It skips certain lines, at least it appears to, then it jumps to the bottom of the page and repeats the same line a few times then jumps to a separate sub I have in there. The weird thing, besides its behavior, is that it's not grabbing a piece of information that exists in one column but is grabbing another one. So anyone else encountered this? What's the fix.
To give a more detailed example it did this on the last debug. I started the breakpoint at line 40. It went to 43 with no problem then jumps to line 66, an end sub line, it then proceeds to go on to the private sub directly below it. That includes it going over the blank lines that would normally be skipped. It goes through the entire private sub line by line including a catch ex line but it displays no error. After hitting that line it immediately returns to line 46 of the sub that it already passed by the end sub line. It then goes down 2 more lines jumps back to the private sub it just left and repeats the end sub line 3 times, only the b at the end is highlighted when doing this not the whole line.
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Dec 31, 2009
I'm confused on when I should use the Randomize() function.It's my understanding that will give a new seed to the random based on the system clock, so should I therefore call it each time before generating a random number?I seem to recall reading once that it should only be used one time (like in the form load event), thus my confusion.
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Mar 28, 2011
a datacontext defined in a module(domain services ado.net ria)a page having add/delete methods whenever any method is executed, it is found that all the previous actions (NEW RECORD ADDITION and DELETION OF RECORDS) are carried out before the new action is carried out normally
this behaviour is not prominent but "when using break points and inspecting the values of the variables and table object to be added to context, it is clear that all the previous actions take place again. even when the datacotext. savechanges is called, even after that still all actions carried out on the datacontext repeat themseleves, when any new action is to be carried out
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Nov 9, 2009
I have a list of names:
Public players As List(Of Player) = New List(Of Player)
How can I randomize the list? These are names of players in a tournament. I want to randomize the list so that they are not sitting sequentially at the table(s)
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May 11, 2010
I would like to know how to randomize (shuffle)this array so I could use it to fill a bingo card.[code]
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May 29, 2012
Randomize()
Dim Alpha() As Char
Alpha = New Char() {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N",
[code].....
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Sep 4, 2009
I have previously been told that I should always use Randomize() before I use Rnd() in a vb.net application, yet it always seems to work fine without it. What does adding Randomize() do for me in this case? It doesnt appear to affect my application in the least.
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Sep 10, 2009
how can i randomize numbers between 1 and 200, but no number can be repeated
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Dec 17, 2009
how do i randomize the operator?? i mean i wan the operator occur to be in random .i have to rush out my miniproject on next wednesday so i do ask the problem i meet here
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Jan 17, 2010
How to randomize the panels?
and if the panel reached about 5 randomizing, it will stop randomize..
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Sep 5, 2010
I have a report that i'd like to display an Image for each record. But not all records have an image. The problem I have is that the last image is then repeated in the next record.
I would like to know how to have any empty field display a default image.
Code I have in report
Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer)
Me.Image21.Properties("Picture") = Me.PhotoLink
End Sub
Photolink is a textfield and Image21 is an Image.
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Jul 5, 2010
Say I am pulling the following table, I would then like to select an ID randomly. I understand how to select a random number using a Randomize() call followed by the relevant syntax but I want to pre-define the range.
i.e. Table Data
ID | Name
4345 Mike
3456 Lee
4567 John
There will be many more names but for this example you could use 3 or 4 etc..
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Aug 11, 2009
the net is not much help for randomizing items in a listbox. how can i randomize these items and send the first index to a textbox.[code]
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Dec 6, 2009
for example, string="trujade". how would i go about randomizing the letters in the string to look like the matrix code? change each letter in the string "trujade", randomly to a different alphabet letter. [URL]
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Feb 23, 2009
I am making a random name generator. what I got is a large list of first names in listbox1 and a large list of last names in listbox2. when I hit a button, I am randomly pulling a name from both listboxes and putting them into 2 textboxes. for some reason they arent always random. I would say out of 50 names I will get 2 or 3 sets that are identical. why??keep in mind I probably have 400 first names and 200 last names. I should never get a duplicate! here is my
'randomize first names
Dim rnd As New Random()
Dim randomnumber As Integer = rnd.Next(1, ListBox1.Items.Count)
[code]....
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Oct 21, 2010
Can someone tell me how to shuffle / randomize a stringi got a string like: 0123456789name0123456789and i want it to become a random like: 343n3287a4738m2039e7834
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