Get The Vb Random Function - Basic Winapp Application
May 13, 2010
I must say I don't get the vb Random function. Try making a basic winapp application, but a button named Button1 and a few (around 10) labels on the form. Then add the following to the forms codebehind:
Code:
Public Class Form1
Public Function RollDize(ByVal iDize As Integer) As Integer
Dim iRes As Integer
[CODE]...
Now, if you click the button, you will see that all the labels get the same number. However, if you step through the code in debug, the numbers are random.
I'm having some problems with a Windows Application where I have deselected the application framework to be able to use Sub Main().I want to use Sub Main() because then I can do some things without showing any graphic interface to the user. Things such as automatic update and checking if another instance of the application is running.After checking these things, I execute these lines to run my application:
vb.net Dim frmMain As New frmMain() Application.Run(frmMain)
I need to run it this way or else the application will close when Sub Main() ends. The Application.Run keeps the application alive until I exit the main thread.However, this causes some problems with a variable, no information can be saved into it, I don't know if it affects any other variables as I haven't noticed it. However, I save a string to the variable and then when trying to compare it, the variable is string.empty.Could it be Application.Run which is messing things up? Should I do frmMain.Show() and keep the application running with some sort of WaitUntilExit?
I've created a windows service application. i've also created a windows forms application that can automatically control the service ie. start, stop, install,uninstall, timer property change...... however all this is only one sided, ie i'm passing information from WinApp to WinService.
What i wanna know are ways to get the service to pass variables values from the service to the Application.....
I am currently enrolled in the class. My final project for the class will generate random numbers within a range of numbers. For example, if I give the user five text windows to choose whether to input a number OR generate a random number, I will have a button called RANDOMIZE. Unfortunately, I do not know the line(s) of code for the random function.
I'm trying to convert an old Quick BASIC program to VB.Net. There doesn't appear to be any direct replacement for the old file statements. Building a database seems like overkill for my simple needs.
How can I do the following in VB.Net?
OPEN "test.dat" FOR RANDOM AS #1 LEN = 20 FIELD #1, 10 AS a$, 10 AS b$ LSET a$ = "One" LSET b$ = "Two" PUT #1, 1 GET #1, 1 PRINT a$, b$ CLOSE #1
Here's the program. there are five categories say a, b, c, d, e, each in a textbox (color blue). There will be a command button say "choose". If i click the choose button, it will randomly choose one category and that corresponding textbox example "a" will change color(color yellow). Then if I want to click the choose button again, the selected category "a" from the first selection will change to gray, then a new category will be randomly chosen without "a" in the list and again will change to color yellow. and so on. So I can click the choose button five times, exhausting the five categories without repeating the category that was already selected.
Im kind of wondering can I fix this? When I edit code in Visual Basic 2008 Exspress Edition it will everytime open after maybe 15 to 30 mins feeze and close, sometimes it unfreezes but not always
How would I go about say adding a label with the text of 0 and a button, when the button is clicked, the label will go to 8 then 6 then 15 etc.. etc.. random numbers,?
I've made a function in C# to create a random string, but I wanted to convert it to VB.NET, unfortunately my knowledge of Visual Basic is much less than my knowledge of C#.
Here is my VB.NET function:
CODE:
As you will see, its not much different from my C# version, except that since VB can take an optional parameter, I allow the user to select what characters to use in the string, or just use the default ones.
Here's the C# version of my function:
CODE:
Again, there's not much different, but the part I'm really struggling on is the conversion between what is the 12th line of VB code, and the 13th line of C# code. I didn't really know how to convert it to VB.NET (as I said, my knowledge of it is very limited), so I used an online converter. The result of the online converter runs with no errors, however when I try to call the function, no string appears.
I'm working on my graduation project and within it i need a function gives me random ID numbers and random dates since 2008,01,01 untill now .. I'm done with the ID numbers but i couldnt find a solution for the dates
I just want to randomly fill the label with text, I'll put some of the code I need to know what to add to get it, I don't need a click event or anyting just the random part.[code]....
I've got a random number function that generates 3 random numbers between 0 and 10. I was just wondering if there was a way to exclude the value that was found before it? For example:
Random(0) = Int(Rnd() * 10) Random(1) = Int(Rnd() * 10) 'Here i want to keep it as 10 values but exclude the value of Random(0)
I'm trying to create a function that can be use to generate random number but with percentage.For example, random number between 1,2 and 3.For 1 = 30%, 2 = 50%, and 3 = 20%I will use that function in mini games that I will create. I've tried to search but I cant find one. A function of vb.net random() doesnt have percentage right?
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:
I have a function called DieRoll. In the function I have the following setup.
Dim objRandom as New Random Dim intRoll as Integer intRoll = objRandom.Next(1,7) Return intRoll
Everything works as expected as far as generating a random number (1 - 6) is concerned, except for one problem. If I have a series of calls to the function one after another, the numbers come up the same. Is there a way to make sure that each call to the function is much more random?
I need to send a short string, (less than 30 bytes, but sent every second), from one VB application, to a Delphi application.. is this possible, using CopyDataStruct, WM_COPYDATA and SendMessage functions in Windows?
ive created a function for generating username, password, email to log in on a website but the problem is i want to use all account one at a time for example
I am currently taking a introductory level class to vb.net. For the assignment it asks to create two functions. One function should create a random number within a given range. I have completed that part. What I am having trouble with is the second function. It wants the next function to use the previous function three times so that it displays 3 separate random numbers within a given range and display it in a D2 string format.
I'm supposed to make an app where computer generates a random number using a function and then the user has to guess the number. If they get it right, they see a picture.... If they get it wrong the loop keeps going until ten guesses are up.. I'm running into quite a few problems...
1. I don't know how to tell if the photo will show up if the number is right because right now I have it set to false in the form, so it dosen't show up but in my loop I included the code that SHOULD allow it to show up if both numbers are the same.... Not sure if this is correct...
2. I have a textbox that is supposed to keep track of the number of guesses but the message automatically becomes Game Over and the guesses go up to 11 as soon as I click the Are You Right Button?
3. When I try to debug, my app freezes and I don't know why...
Is there a simple sleep function in Visual Basic that doens't involve thread.
Something similiar like there exists in: C: sleep(1);
We also tried this code:Declare Sub Sleep Lib "kernel32" (ByVal milliseconds As Long)' pause for 5 seconds Sleep 5000 but it didn't work. It gave me this error: PInvokeStackImbalance was detected
it would automatically truncate large strings to fit in a small assigned space, and it would use empty spaces for strings too short. it made it VERY easy to print fixed front text tables in aligned columns by automatically truncating long lines and expanding using spaces (chr 32) where needed.i've already looked at .Format but it seems just for dates, times, currencies, and various byte/hex formats.
I am trying to transfer a very complicated Matlab function into visual basic. It takes a matrix input and gives 4 outputs.
From my own research I found something called Matlab CODER, which can transfer matlab code into C/C++ code, however, this function is too complex for that. So I guess now my question is, it is possible to call my matlab function somehow within VB and store the outputs for use within my VB program?
The matlab function looks something like this:
function [f,x,s,c,l] = mytest(Y,varargin) %Code here... end % function
I'm working on a small freeware application in Visual Studio 2008 Standard that will match geographic data to a geographic position. For this I need some mathemathical functions and one of them is how to detect if a point is inside a polygon. There's a great solution for this from the Microsoft team at: [URL]
but it is in a different programming language that I do not know anything about. How can I use these functions in my program? I'm afraid that if I try to rewrite them in Visual Basic I'll make mistakes that I can't detect. To be complete, I'm not using screen graphics so I really need a mathemathical solution.
