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]....
Is there any direct way to stop a threadpool when user press Cancel Task button? I got SmartThreadPool but using that i could not arrange my code. Its becoming difficult.
Here is my simple code:
'Delegaet to update UI
Public Delegate Sub updateClassDelegate(ByVal index As Integer, ByVal status As String)
[Code].....
I have a app that gathers and store updated data from a list of websites. My app use threadpool and each thread visits a site within the list and gathers the data. I want to create a stop button to stop/ prevent threadpool from running once it is clicked. How do I go about doing this?
View 1 RepliesI am trying to make an application with a start button and a stop button on a stop watch program. These are the codes I am using but my seconds on the stop watch don't start.
Public Form Dim intSecond As Integer = 0
Form 1
Private
Dim intSecond As Integer = 0
intSecond +=1
[Code]...
After I write my code and try to run the program, the seconds will not start,
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:
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 m trying to move all my drive's files into h drive firstly i have added all drives in threadpool for scanning and when scanning of any drive finish (Without waiting for other drive's complete ) it will move file's to h drive but it is not working as i wanted that's why i need two threadpool - one threadpool for scanning files and second threadpool for moving file's into drive's
View 11 RepliesI have a START and STOP button and when the user clicks "start" the program does a whole bunch of calculations and all. However, I noticed that when I was testing the program I clicked STOP the program continues to execute stuff.
My START code is basically a while loop that iteratively does some calculations.
So I just put a boolean variable as the while condition and when user clicks stop its set to false and when user clicks start its set to true. However, when I click stop, the condition is set to false yes but it still executes all the code until the condition is re-evaluated right...so my question is how can I get out of the while loop when user instantly clicks "stop"?
I need to record the screen when my user clicks start, and stop recording when he clicks stop.I've searched for a while on this subject, and I have found nothing.I want to do this without adding any files to my project, I just want to use some built in function in Visual Basic, and start recording, or even take a snapshot and add it to an AVI file or something...These are some sites I have found:
http:[url]......
This code is in VB6, but I am not sure how to even start using it?
Is this possible? I have a list of tasks in a threadpool that i would like to clear (stop) when a button is pressed.Is there any way i can do this?
For i = _PortFrom To _PortTo
Threading.ThreadPool.QueueUserWorkItem(wcb, i)
Next
As you can see its a port scanner, and id like to be able to stop it half way through if possible?
When a button is focused by pressing Tab key, a rectangle appears on it. Even if the button's TabStop property is set to false, when the button is clicked with mouse the rectangle appears. Is it possible to stop the rectangle from appearing?
View 4 RepliesI have a problem. I use this code for move form:
'Declare the variables
Dim drag As Boolean
Dim mousex As Integer
[code].....
How do you stop a sub that's called from a button click event?
View 7 Repliessoo i have some music that automaticly plays when i open aplication
how i stop this music from playing and that it continues playing from where it was stopped from, when the same button is pressed
im creating a stopwatch with 3 textboxs and one button which is restart button the watch automatic start by itself how would i create.
View 1 RepliesStop Watch With Three Textboxs And Button
View 2 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 have a form that you can type in a four digit code and press enter and will will run some code on a database. The problem occurs when a user click their 4 digit ID number and then click enter, the next user then comes up, types their 4 digit ID on the number pad and when they press enter it runs the code twice (this is due to the fact that the enter button has focus, meaning i intercept the enter, run my code, then the button runs that same code)
View 4 RepliesI have an event I want to do continuously until a button interrupt is pressed.
Here's the pseudo
Click button 1:
Check if button 2 is pressed
If not, do stuff
If so, stop doing stuff
End routine
So what I currently have is this:
Dim randominteger As Integer = 0
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartSampleButton.Click
[Code] .....
Unfortunately, it's never breaking outside of the first loop. How to get around it?
I 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 have a button with DialogResult OK set.
I'm using the following code to try and do validation[code]...
I have a problem, I have to stop one Loading class on button click. I already checked some forums related to this. But didn't find an exact solution.
For example:
Public Sub LoadDropDown()
Dim it As Integer
[code].....
i have a user name, password and a calendar button which when click, a calendar appear and insert the date selected into the date textbox field, and a submit button. After, i key in value for user name and password and click on the calendar button, the password textbox field because empty. So how can i going to stop the password textbox field to become empty when i click i the calendar button?? i set visible calendar only when click on the button
[Code]...
I want to include a functionality in my application such that when the user clicks on a button, the user should be able to record the voice, and when stopped, the sound should be saved. Here's what I wrote for the Start and Stop button.
[Code]...
I am working on an app and I am a bit confused w/ threading. I understand the point of threading but I am not getting when to use a background worker thread vs. a standard thread vs. a thread pool. Can someone shed some light on when to use which? Right now, I am trying code an app that does stuff initially in a sequential order and then eventually must thread (otherwise it takes forever). The problem I am having w/ the sequential stuff (and threading later) is that I need a button to be able to stop execution of code. [Code]
I did the background worker on this first sequential operation because when I tried w/ out it, the text box didn't update at all until the web page contents were retrieved. Basically, the text box change of "Starting." doesn't show up until the web page is finished processing even though the assignment to the text box happens before that code.
Is there any way to stop the execution of the code that's under a button if for example a certain condition is met?
View 5 RepliesHow can I stop the text of a button control from being cleared when I override OnBackgroundPaint?
View 3 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
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i am doing an gaming project in vb.net 2008..my problem is i wrote code to play the video in button click,,so codes after the video playing code in button click must stop for 5 seconds how to do it?i cant use threading.thread.sleep(5000)if i use that then entire program execution will stop for 5 seconds if i use that then video will also stop playing.........
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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]...