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..
I have a USB device that is "seen" as a COM Port. It has eight channels, each require a single character to turn ON/OFF. It's a DLP-IO8 for reference.
1-8 turns ON each channel
Q-I turns OFF each channel
Sending a "124" will turn on channels 1, 2 and 4.
I want to randomize ON/OFF with "on-the-fly" speed control.
cmbSPRan.Value is my NumericUpDown starting at 1 and ending with 10
RandomNumber = RandomClass.Next(1, 87654321)
SerialPort1.Write(RandomNumber)
Timer1.Interval = (cmbSPRan.Value) * 250
[Code] .....
I need a loop that I can still use the functions of the form (change speed or Stop loop).a way to utilize Q-I to turn the channels OFF randomly. I've tried Do Until, Do While loops and a few others.
I have a USB device that is "seen" as a COM Port. It has eight channels, each require a single character to turn ON/OFF. It's a DLP-IO8 for reference. I have the COM port part working 100%.
1-8 turns ON each channel (12345678)
Q-I turns OFF each channel (QWERTYUI)
[Code]....
how can i randomize numbers between 1 and 200, but no number can be repeated
View 8 RepliesI'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]....
The goal is simple... generate a set of random numbers with a certain range (e.g., 1-6, 5-10) with no repeats. I tried using a system with arrays where everytime a number has been generated, its marked as "used" and then the program is required to generate a new number. But it doesn't work!
Public randomnumgen As New System.Random
Public randomnum As Integer
Public iCounter As Integer
Public GotIt(7) As Boolean
[code]....
Im trying to write a program that will do:
1.The average of the four numbers. This answer will be placed into a text box reserved for that value. This text box cannot be changed by the user.
2.The maximum and minimum values. These will be denoted by changing the color of the largest number green and the smallest number red.
3.The range of the numbers. The range is defined as the difference between the largest and smallest numbers. The range will be placed into its own text box, labeled as such. This text box cannot be changed by the user."
Im using visual studio 2008 and it has to be written in VB
i have one more issues, and hope is the last for now. How can I limit a textboxe's input to only numerical with certain range of values (eg -10 to 10) and with that happening while I type in the values?
View 9 RepliesI have a listbox with numbers from 1-10..i have searched it up but i cannot find how to do..how can i randomize the order of the numbers in the listbox when a button is clicked? (each number must and only occur once)
View 1 RepliesI 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.
View 2 RepliesI 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
View 1 RepliesWrite a program that will allow the user to be able to choose whether they want to add up a range of numbers in one of three different ways. 1) even numbers 2) odd numbers, or 3) consecutive integers. Use buttons for user choices.
Instead of limiting the user to just adding up these numbers you will also supply an Average Button that will show the average of the numbers rather than just the sum. Only the result that they have selected should be visible.
The program should look similar to the program below:
This is the program I was asked to make.
my code soo far is.....
[code....]
I couldn't figure out the formula to use for this but I assume its the same for each part of the program just with a little change.
I was wondering how to limit the textbox to have a range of numbers like
one can input numbers from 1 to 150
I already made the textbox only do 3 characters and only numbers but kinda stuck here.
I'm making a program as part of a college assignment that requires my to add up the contents of an array. Now the array has 20 places, and the only method I know of atm is:a + b + c + d + e etc...They are all different numbers so I can't just do a * 20, I need a more code efficient way of adding all these numbers up, is this possible?
View 10 RepliesI have two user inputs (as textboxes) for two numbers I'm looking to check for all the prime numbers with the range of those two numbers and display them within a multiline textbox, however my code returns nothing but zeros, and I have seen easier ways to do it without functions but I am curious as to how to go about calculating primes within the function.[code]...
View 7 RepliesI am trying to create a form that allows users to input two numbers a high bound and a low bound then when you click the calculate button it determines all the primes within the range and displays those numbers within a multi-line text box. It seems I have everything working except how to display the prime numbers, the result from the following code displays nothing but zeros so I suspect that the range is not being saved somehow? I have asked this on other sites and people just give me completely different code or their own, can anyone help me with this specific code without changing the underlying code, I have a feeling I might be missing a variable or I am calling the function incorrectly.[code]
View 2 RepliesI have 5 columns of 11 textboxes each on my form the textboxes are generated with this code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'column 1 textboxes
[Code].....
i need a code to generate all the possible combination of the numbers a user types into the textboxes i have two images (Panel3: the textboxes where added during design time) image2: the textboex were added using the code i gave about
generate all the possible combinations of numbers typed into the textboxes (Example see panel3.jpg image),
The user will type in the desired unique numbers into the textboxes without repetition (Please see the image i did not repeat any number, so can the code detect when a number have been typed twice?) Else when running the program i will be carefull not typing two numbers twice, but its adviceable to detect when a number is typed more than once.
Then the amount of unique number the user will type or supply to the desired textboxes does not matter here and as you can see in the image the amount of numbers in each column is not the same ie it may or may not be same amount (but number must be unique. Please try and see if it can be done to prompt user to enter the amount of numbers to supply in each column)
Then After supplying the numbers just like the one in Image, The button Click will generate all the Possible Combinations of the all the numbers typed into the textboxes in the columns.. Then After generating the combinations in the Listbox, the next Button will be able to delete them from the Universal 90c5 just like the former.
I need a variable divider ex. i have numbers from my textboxes in the range of 20 to 60 i want a divider that will divide them in a range of 2 to 6 so if the number is the lowest 20 the divider will divide him with the lowest of his range number 2 if the number is 40 the divider will divide him with the number 4 if the number will be 45 the divider will divide 4,5 and so on a variable divider.
View 21 RepliesI am using the following code in the Load method of a VB form to generate random numbers in the range 1 to 8. Without fail after enough loops the range is exceeded and 9 is the random number returned every time. The line using the Rnd function is from: Rnd Function (Visual Basic)
[Code]...
I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
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.
View 2 RepliesI 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)
I would like to know how to randomize (shuffle)this array so I could use it to fill a bingo card.[code]
View 5 RepliesRandomize()
Dim Alpha() As Char
Alpha = New Char() {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N",
[code].....
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.
View 3 Replieshow 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
View 5 RepliesHow to randomize the panels?
and if the panel reached about 5 randomizing, it will stop randomize..
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]
View 8 Repliesfor 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]
View 2 RepliesI 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]....