I 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'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.
How could I limit the random number range? For instance, limiting the number within the range of 1-100.
View 5 RepliesThe object of this project is to write a computer program that will allow the computer to guess a number that you have selected. The computer will make a guess and you, the player, will tell the computer if it guessed too high, too low, or that it guessed the number.The program will also allow the player to start a new game or to exit the program. PROJECT INSTRUCTIONS:
1. Create a form with a labeled box to display the computers guess.
2. Create a new game and an exit button.
3. Create objects to indicate if the guess was too high, too low, or right on target.
4. Create program code to respond to the player�s indication by selecting and displaying a new computer guess.
5. When the computer guesses the player�s number, reset the so that a new game may begin.
I have done all as above and so far my code looks like so
Public Class Form1
Dim Guess As New Random()
Dim HGuess As Integer, LGuess As Integer, current As Integer
[code]....
The problem i ran into is that if for example a user has a number 24, when the program makes an initial guess of 50,i want to be able to click low, and the program should generate a lower number say example 22. If i then click higher as my actual number uis 24, the program should not shoot higher than a number it has previously guess incorrect (in this case 50) it should guess anywhere from 22 - 49 and in turn limit the range of the next consecutive guesses it till hits the right number. My code right is guessing as it shuold but not within the limited ranges.
EDIT: I am so sorry! I have added my thread to the C# discussion thread instinctively wherein in fact I have been creating my application in VB.NET so sorry! Please transfer my thread to the appropriate location! I am currently trying to mess around with a simple mp3 player and am in the process of creating a shuffle list from all the songs in my playlist.
View 2 RepliesI know that there is a way in which you can generate any random number between any range using the random variable. But my question is that is there any way to do the same thing but with letters?
View 1 RepliesVS2010 (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 RepliesWhy isn't this possible? NextDouble(-0.75, 0.76)
How can I do it another way?
how do i generate random double values between range, for example:value between 2.50 to 3.50?
View 7 RepliesI am coding a lottery number generator for a homework assignment. My project needs to have functions that return random values based on a range given. The first function I am coding is for a pick 3 lottery game.The function should return three random numbers between 1 and 9. I have coded the function but it only returns one number. When the debugger runs it says my function does not return a value on all codepaths.
[Code]...
I am making a program that chooses the active runway at an airport from the wind data. So far I have a formula that works without out a number range:
Private Sub TextBox1_TextChanged_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If TextBox1.Text = "" Then aarwy.Text = "Run"
[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 set the phone number field to number datatype.......in the access database...the field size is set to long integer.While trying to save a data in the database, when i enter a 10 digit number then an exception is thrown but upto 9 digit it works great.
View 39 RepliesHow would I go about generating a unique receipt number in the following range:
GA00000-GZ99999? I am not allowed to use the 'I' and 'O' letters so GI00000-GI99999 & GO00000-GO99999 would be excluded. Ideally, I'd like to create this in T-SQL but can also do it in VB.Net. This number will be stored in SQL and I can access it prior to generating the next one. They do not have to be sequential.
Does anyone know the range of digits of Motherboard Serial Number?
View 5 RepliesI'm creating a number guessing game. [Code] Textbox1.text refers to the answer input by player. There are two labels for displaying the range of the answer within. Label1 and Label2 refer to the lower limit and higher limit respectively. If the input value is smaller than the answer, the label1 will show the number that input into texybox1. If the input value is larger than the answer, then vice-versa. However, the program doesn't work as my expectation. Once I input the answer, the MsgBox doesn't appear. When the input value is smaller than the answer, the label1 doesn't show the input value.
View 15 Repliesi need to check whether a demical is 0 through 49.99 or 50 through 99.99 or 100 through 199.99 or greater than 200. i am trying to do this with select case, but i am not sure of the syntax.
View 7 RepliesI am using this to populate column1 combobox from a text file and it works fine.[code]I tried to add a number range using this to populate columns 4 and 5..[code]The number range populates the combobox(CB) fine but when i select a number from the CB it causes a error and selects the first item, the error loops evertime the mouse hovers over the CB..[code]
View 5 RepliesHow to write a if else statement to check if the number user enter follow within a range.
View 5 RepliesI'm using vb in excel 2007 and need to work through a range or array, the size of which varies from time to time.
The examples of using range always demonstrate using literals eg "A1:A25"
How can I programatically determine the end of the range - ie up to where the cells value is blank
And then can I use a variable in the range statement - eg .[A1:Lastcell]
Trying to input a high setpoint, low setpoint, a % load, and number of compressors, then calculate the temp that all compressors are off. Then build a datagridview with the staging of compressors from all off to all on for each compressor up to 10 compressors.I am trying to insert headers from 1 to 10 compressors (Variable) with the text "Comp1", "Comp2", etc....Two rows with header. I am trying to use an array with index number to insert the text, but that is where my problem happens."Index was out of range".Here is my code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer, num1, num2, num3, num4, alloff As Single, stg As Single
TextBox1.Focus()[code].....
Public extreme_foods As New System.Collections.ArrayList()
Dim i As Integer
i = 1
For Each s In split2
extreme_foods(i) = s
i = i + 1
Next
anyone know why extreme_foods(i)=s is giving INDEX OUT OF RANGE??
I'm building this class to download files in parts/sections/segments. In .NET 4.0, I can use this code to specify the range to download from
long startPos = int.MaxValue+1;
HttpWebRequest.AddRange(startPos);
and it works because there is a long overload for the AddRange method. When I looked up the .NET 3.5 version, I realised the AddRange() method allows using int only. The possible workaround would be using the AddRange(string, int) or AddRange(string, int, int) methods. Since the class will have to work in .NET 3.5, I'll have to go with the string specification but unfortunately I can't seem to find any sample code that shows how to specify ranges using this procedure in .NET 3.5. Can anyone show be how to do this?As the first code sample I wrote shows, I would like to specify a range of type long instead of int. Using type int allows requesting for byte ranges only up to 2GB but long allows requesting for byte ranges beyong 2GB.
The question therefore is: How do I specify byte ranges of 2GB or higher on HttpWebRequest in .NET 3.5?
On my form i have a textbox that users can enter a value into, how to i check whether the value entered in the textbox is within the range bewteen two other numbers?
i.e
Top int is 10
Bottom int is 5
The user enters 7 into the textbox
I want to check that the value entered is within the top and bottom range, and in this case as the number 7 is between 5 and 10 the answer would be yes?
If the user had entered 3 for example, then the answer would be no.
The Top and Bottom Int's will be set at runtime by the value entered into another textbox so will differ each time the user uses the form.
I have following code and I can filter data on grid but when I pick same date in 2 datepicker it shows nothing.
[Code]...
I have a string array, and I need to get a range out of that, say 10 items counting from index 20.
I see there is an extension method called Take that can take a number of items from the beginning of the array, but I also need to specify the starting index.
i am using the below code but getting error.
View 5 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.
my question is to turn the text in a text box red when it receives focus, and black when it loses focus. I seem to get that "index is out of range" pop-up message. [Code]
View 3 RepliesI am trying to make a tabbed web browser, on my first tab every thing works fine but on my 2nd 3th etc tabs when i try to do anything type in a url go home refresh anything it says index 0 is out of range perameter name: IndexI am new at Visual basic and i cant find what my problem is.
View 9 Replies