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.
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]..............
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.
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.
'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?
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...]
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"
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
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
Say we have a DataGridView on the main form. I can chose to establish its properties by code or by selecting them in the Properties panel. Is there a difference between these two techniques, a loading time penalty in any of the cases especially?
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.
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]......
i'm in the need to start a backgroundworker inside another one.Now...The first one BGW starts a for cycle, and inside this one there is the second BGW that has to upload an image to a server.The trouble is that, the progress event and the complete event of the internal BGW are never called.
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
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
good example on backgroundworker control in vb.net for doing some process in background for ex a reading a doc file in textbox by using backgroundworker in vb.net?
Ok, I don't even know if the is possible, but what I want to do is have a button that when pressed will add a new text box below each other each time it is pressed. So meaning, ther4e is text in one text box, then a button is pressed, a new textbox will appear below it and you can add text to that, and so on.
I was wondering if you can programme in a code to add buttons to a page, without physically putting them in.Ive got a customisable set of options, currently in a txt file 1 item per line maybe thinking of putting into a listbox, if a user adds an item i need it to add a button with that text on.
say i had a drink list, with my first 3 items of beer, cocktail, food, and theres a button prest for each one and i decided to sell wine, shandy, rout beer and so an so on, or how ever many items there are, could be 50 items or 100 items don't really fancy?
Possible Duplicate: C# Coding standard / Best practices
What VB.NET or C# coding standards are you using for your .NET applications?I was looking at hungarian notation and I don't think it is a good idea for a .NET application.
I'm creating a game similar to the tradtional space invaders in VB '08. My problem is twofold. One, when I dim a new picture box (picPrimaryLaser) it won't move. Two, I can't do anything while it's moving. The screen just turns white and flashy around that area.Here's the code.
Public Class frmMainInvasion Dim activationCheck As Boolean = False Private Sub frmMainInvasion_FormClosing(ByVal sender As Object, ByVal e As
<Visual Studio 2005. VB.NET.> Does anyone has a sample code to send an e-mail like below?
Namespace My Partial Friend Class MyApplication Private Sub MyApplication_NetworkAvailabilityChanged(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs) Handles Me.NetworkAvailabilityChanged MsgBox("Network Connection has been changed", MsgBoxStyle.Information, "Network Connectivity") "Send an error email to admin"
I'm currently extracting strings from the page source of a certain website. I'm using the start string and the length to get the string I want. However, the problem is that it contains some html codes such as href, a, li etc. Is there a way in which I can copy the text only and not the code?
I have a dataset which i'm sure that i am able to change the data held wihin it. But the datachanges don't stick when i stop running the prog and restart.
