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As this Loops round, the answer for formula will eventually become the same as what was input, X. How can I get the Loop to stop when it has the same answer twice in a row? The counter will count how many times it has had to Loop before finding the repeated answer.
Is it possible for you to loop a block of code until the user provides a valid input? Like, when I click the save button, the program will prompt the user for an integer value, and I would like to validate if the user has inputted a valid value. If the user fails to input a valid value, then the program will re-prompt the same message again until the user inputs a valid value. Eg:
If MsgBox("Add copies to this book?", MsgBoxStyle.YesNo, "Adding Book Copies") = MsgBoxResult.Yes Then
Dim CopyQty As String = InputBox("Amount of copies to generate:", "Add Book Copy")
If IsNumeric(CopyQty) = False or (CopyQty < 1) Then
[code]....
I created a form and have the variable inputs for 4 motor run statements. Then with a start button the script starts and it is surrounded by a for next statement to loop 10 times. It works fine but if i need to stop the execution of the script with a stop button. I put the stop in a new section but of course does not work to do a motor stop. It just causes the exe to not respond till the loop is complete. Just need to be able to stop the Run1_Click button section.
Edit:I do not mind if it finishes the 4 motor run commands and then stops execution of the loop. So need to figure out a way to trigger a stop from a button on the form to stop the cycle. For the future the loop will be a variable integer input so 10 will not be the standard.
Edit::Does a ' Do ' statement sound like the thing to use? If so how and where would I place that? Have a Stop button on the form and it would stop after the 4th motor run command.
#End Region
Declare Function InitStp Lib "stp.dll" () As Integer
Declare Function RunMotor1 Lib "stp.dll" (ByVal steps As Integer, ByVal interval As Integer, ByVal direction As Integer, ByVal outputs As Integer) As Boolean
[code]....
I have written a function that gets the alexa ranking of a given url, now this function works perfectly but I want to loop through a ListView of urls and grab the alexa rank of each item (url) with my function.The code works great if I put a MessageBox in the loop to test that the function is returning a value but when I remove the MessageBox the loop does not work.I need it to loop through adding each result without a MessageBox stop in each loop.
vb
For Each Item In ListView1.Items
Dim result As Integer
result = GetAlexaRank(Item.Text)
[code].....
I have this little application that runs a SQL query works great, now I want to have a Start Button run the and display results then System.Threading.Thread.Sleep(300 * 1000) for 5 min then run again and display results and loop till I buttonstop_click. unsure if the sleep is the best method.
[Code]...
in c++ we use break statement to stop a loop what do i do in vb.net to break a loop
View 6 RepliesHow to Stop This " Like to Make a button That will Stop it from Repeat".[code]
View 3 Repliesfor x = 1 to 45
if x = 15 or x = 30 then (push a button to continue)
for y = 1 to 50
{some code here}
next
next
what i want is the loop to stop at 15 and 30 where you have to press the ok button on this form to restart the loop.
I have this program here where it is supposed to show the Fibonnaci #'s and stop at 2000, but it keeps on going past 2000. This is what I have so far.
Option Explicit On
Option Strict On
Module Module1
[code].....
I need to run a do while loop or some way of starting a search directory loop, then if a user presses another key, it will stop that current search, and restart with the next letter entered. I appreciate any help given and insight. I am basically trying an incremental search feature, but currently whenever a user types in one letter, it does a full search, then on next letter it searches again. I want it to stop if they are still typing in letters.
If SearchTextBox.Text <> "" Then
Do Until Form1.OnKeyPress 'NEED HELP HERE
Try
[code]....
stop do-loop with keydown
View 5 RepliesI have something to ask again.. I develop a program that will send bulk messages but the problem is that when I load at least 1000 emails then I want to stop the application I cannot stop it. Is there any way to stop this application without closing the form? So that i can save the file on my listview? Here is my code upon send bulk emails. [code]...
View 6 RepliesI have a loop set up as [code]I need to know a way to break that loop at the current item it's on in the listbox (listbox1) via a button click (button8)
View 5 RepliesI have 2 subs like below, and when I make a loop with 1000 iterations and capturePicture() in it. after 700 iterations the event is not raised anymore.
Public Sub capturePicture()
Try
AddHandler capturePic.FrameEvent2, AddressOf CaptureDone
[Code].....
i have been working on maths game program for college and have advanced to the part where i have random questions asked repeatedly.
i need it to loop 25 times as atm it keeps on going and wont stop. also i need it to count how many are right, and each question they answer they get 2 chances to get it right or the game ends.but i dont know how to do any of this. this is my code so far for the questions
[Code]...
how can I stop a do/until loop when I press button1?
View 15 RepliesI would like to be able to stop a loop while executing using the ESC key.I've found a lot about using the above key from within a Form (for example, to unload it), but very little for the use of the key within a Procedure (Sub, Function) and particularly with respect of preventing a loop from carrying on execution.
View 3 RepliesI am using VB 2010 , I have a loop that takes something like 5 minutes until it's finish. I want to allow the user the option to stop it in the middle or whenever they want. There's a button which starts the loop, and after I click it the loop starts running and the button is sort of "stuck".I saw something called "background work" in the VB Toolbox, can it be a solution to my problem?
View 2 RepliesI am fairly new to VB but really enjoying programming. I'm looking to create a counter that counts to 25 and loops back around again with a button control and another button control to stop it. So I press a button to start and another to stop and I want it to display the number it stopped on. Is this possible? and how do I do it if it is? I can figure out how to display the label and create a simple counter(that doesn't loop), but I'm unsure on the rest.
View 2 RepliesI want to make a loop that only loops if the serial link is open and Button3 (which writes a stop signal to the program) is not pressed. I've gotten as far as this: Do While Serial.IsOpen = True & Button3. but do not know how to tell the while loop to stop when Button3 is pressed.
View 2 Repliesany way to stop a for loop untill i have user input, once the input is correct continue the for loop, is that possible at all?
View 4 RepliesActually my problem is to stop a loop when i click on stop button. example:i have two buttons 'start' and 'stop' in start buttom i wrote a for loop as
[Code]...
I have a login in system that i'm creating for a game. I have this code for checking to see if the username and password are correct in the text file.[code]I want to know how to make the for loop stop once the username and password have been found correctly.Also, where would I put a message box saying that the username or password are not correct if they don't match up or they're not in there at all?
View 3 RepliesI am having problem with the coding of this (endless loop) and formatting of summary boxes before tests are complete that should not happen. (the overall goals is to have a separate validation procedure that does not calculate or dat displays are not performed until after call function is complete and valid. The validation that takes place are that two boxes are filled in - one is text and the other is a numeric value. (using vb 2008)
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I need a small app that randomly shuffles a set of preloaded numbers. The shuffling will be visible on the screen and goes on continuously (looping) until a key is pressed and as soon as that happens it will show the winning number.Am using visual basics 2008 to develop the application but my problem is when i start the app and hit a key it will loop through my numbers on the text file and it will also display the event but if i hit a key to stop it will not stop..I was workin on the app but my problem is how to stop the loop and resume on the with a keypress. below is the app codes.
Dim Running As Boolean = False
Sub ReadAccounts()
Dim arr As New ArrayList
arr.Add("1366-665885-666-22650")[code]....
I am trying to write this loop to find the word start and then insert a word in a column until it sees stop and then go through all the data and do that.
[Code]...
an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
Alright, so I'm still working on the slot machine. I have three timers all independently going for my three "wheels" of the slot machine.
My issue, is that I'm trying to make a Stop button to stop each timer one at a time, and I'm not understanding why this code isn't working. The logic completely makes sense, and the first "wheel" stops when I click the button, however, it doesnt appear to stop the other two timers.
CODE:
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
I have a simple application that use thread pool to read a file and input the data into a listbox. I want to be able to stop threadpool from running after clicking a stop button. How do I stop threadpool? Here is the code for my application below:
Imports System.Threading
Public Class Form1
Private Delegate Sub StringDelegate(ByVal text As String)
[Code]....