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 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]....
I have ...
Private Sub TestTask()
Debug.Write("Running")
For i As Integer = 0 To 60
[code]......
When I go to Debug my program (F5), the program will load, until I click on the form with the main part of code in it, and then the program freezes, although it doesn't lock up because as soon as I press stop debugging/ task manager end process, it closes fine.
I will attach the zip of the program here. The form that it freezes on is "Black Ops". Edit Due to the forum not accepting my .Zip file (Invalid file type), I will upload it to MediaFire. Download link (445kb): Click Here
I validate a DataGridView with the CellValidating-eventhandler.That works fine. However, I want to avoid validating when the user presses the Cancel button. In the sequence validation occurs before the event CancelButton.Clicked.
View 1 RepliesIs there a way to repeat two popup input boxes (in succession) until the user presses cancel?
Dim hours As Integer
Dim letterGrade As String
Do
hours = InputBox("Total credit hours", "Total credit hours", )
letterGrade = InputBox("Letter Grade", "Letter Grade", )
Loop
The input boxes continue to repeat but when I hit cancel nothing happens... I'm sure I'm missing something to tell it when I cancel to go back to the MainForm I just don't know what it is.....
I am having a form1 with only two buttons----
1) Start backup
2) Cancel
If "Start backup" is clicked.... system requires a lot time for backing up many files from source to destination. If I want to free the user before "Start backup" procedure is not completed ...
then what would be the code for "Cancel" button...? Only I want to stop the running procedure of "Start backup" quickly.
I want to make a program that will (by timeing) click continuously until I press the stop button or a key like f12. The only problem is I have no idea and got only how to click from other posts of same concept. This is what I have.[code]Now I want a timer to help it click every 1 2 or 3 seconds, whatever it may be in the text box.
View 2 RepliesI 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 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 have a coding to let user select 2 files to import:
[Code]...
But if user click cancel button at Browse2 button, the system will paste the value from Browse 1 to Browse 2 text box. How to do nothing if user click cancel button at OpenFileDialog?
I have a coding to let user select 2 files to import:
-------------------------------------------------------------------
Private Sub btn_Browse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBrowse1.Click
On Error Resume Next
OpenFileDialog1.Filter = "Lis files|*.lis"
OpenFileDialog1.FilterIndex = 1
[code]....
But if user click cancel button at Browse2 button, the system will paste the value from Browse 1 to Browse 2 text box.How to do nothing if user click cancel button at OpenFileDialog?
i want to make the Grid view Button(Time In) invisible until the User press Time Out Button. Once the user press the Time Out Button,Time in Button must be shown
View 2 RepliesHow To Make It So When You Press A Button, It Deletes Windows Temp Files.
View 1 RepliesI want to create one help file for my whole application. and once user press help button next to any input control then appropriate help topic from file should get display. how can i create this functionality in vb.net?
View 1 RepliesI have an app that I'm using Form2 to display informaitonal messages without having the user to press the OK button. I DIM form2 as a new form as a global and then add a lable to it on the fly and then control it's appearance with a timer. This all works great providing the main form is being displayed however I can't make Form2 show up if the main form is minimized or hidden. I can get around this a bit by keeping the main form maximized but change it's Opacity to zero but once I do that I have no idea how to return the Opacity back to normal when I do want to see the form. Anyone have any ideas on how to make Form2 display if the main from is minimzed or how to control the Opacity of the main form so I can return things to normal? I was thinking that there might be something I could do with hovering over or clicking on the icon in the taskbar but I don't know what that event might be.
View 5 RepliesI'm trying to create a shortcut for my program that sends the user to the world map of a website with the press of a button, but it isn't working. Here's my code:
Private Sub Game_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Game.KeyDown
If e.KeyCode = Keys.M Then
Game.Navigate("http:fallensword.com/index.php?cmd=world")
End If
End Sub
"Game" is a WebBrowser control.
i've created a hangman game (Fully working) but since you can only "play" with one phrase (10 letters) it gets boring fast. Basic the current game works by on form load i define the slots (10 string which each hold a letter) and give them there letter. then the user type in a text box and if the textbox = any of the slots then the lbl repasenting that slots changes its text from "_" to the letter.
Anyway what I would like the button to do is when the user presses the start button a random number is generated. The program then looks into a textfile and based on which number is generated it takes a certain line (10 characters per line in a phrase) , moves them into the slots and the game starts. Is that possible to code or it too complicated. The textfile will be in the applications folder (words.txt).
I'm using a BackgroundWorker to perform some analysis on a separate thread. The BackgroundWorker is called when a user clicks a CheckBox.
I need to provide for the user clicking the CheckBox, starting the BackgroundWorker task, and then changing their mind and clicking the CheckBox again.I simply want to cancel the currently running task and set the analysis off again. Currently I have the following method:
Public Sub UpdateParkStatusAsync()
Try
'Debug output.
Console.WriteLine("UC_Map_ViewModel.UpdateParkStatus called.")
[code]....
i have a function to export data with some loops now the problem is that when he is exporting the data the program stop responding and only respond when the job is done, and i need a option to cancel the job when it is running but the problem simple block all forms that is opened how can i creat some multi task for fix that problem?
View 1 Repliesi have a function to export data with some loops now the problem is that when he is exporting the data the program stop responding and only respond when the job is done, and i need a option to cancel the job when it is running but the problem simple block all forms that is opened how can i creat some multi task for fix that problem?
View 1 Repliesi have a function to export data with some loops now the problem is that when he is exporting the data the program stop responding and onlyrespond when the job is done, and i need a option to cancel the jobwhen it is running but the problem simple block all forms that is openedhow can i creat some multi task for fix that problem?
View 2 RepliesI am using an input box. In tat am getting the number as input. When the user presses OK the program is workin. But when I press the cancel button am getting a error message
" Conversion from String "" to 'Integer' type is not valid "
If i press cancel I need the program to end. and also i want to know how to move to other form when i press cancel in input box
I have an asynchronous task that is executing a function. The function does not contains any looping statements, but instead it is executing series of sql commands on sql server. Now, i have a button on my window that can cancel these sql operations. In other words, cancel the whole asynchronous task.
I know that this technique will require CancellationTokenSource and CancellationToken to cancel the task, but i've seen many examples on the internet and all of them are showing that the function that task is executing contains loop statements in which they are checking for IsCancellationRequested boolean property. But in my case, it is not so. My function does not have any loop statements in which i can do a check on this boolean property.
I 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,
Actually 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 went to publish a new version of my game to my C: drive, got the standard "Build Started" and thats as far as it got.Now I can't do anything with the vis studio program, if I try to save - a warning message tells me this is a bad idea with a build running, trying to exit the program results in a message "A build must be stopped before the solution can be closed".
Choosing "Cancel Build" in the build menu caused the Build Started to disappear but nothing else. All other options in the build menu are inacessible.
Searching the program help and google for how to stop builds give a lot of web pages that go on about the build explorer, found in the team explorer, select the team project, etc etc - I don't have anything in the team explorer window, this project is just me and my pc.
What happens if I use the task manager to shut the program down ?
Im currently working on my downloader and also have a few things, but i need a code which can stop the download and then continue it again. Perhaps it will be also possible when you stop the Backgroundworker, because he controls the whole download action ?
View 2 RepliesI've one form log in and 2 button in that form, log in and cancel. when user type user name and password,they must click log in button. I want when user type password and press "Enter" without click log in button.
View 3 RepliesI am doing one web scraper which loops user set list of urls. Lists can be huge and that's why I need Threadpool for it.
My code so far (Scrape code missing)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ThreadingEvents(20) As ManualResetEvent
Dim iCounter As Integer = 0
For Each item As Object In ListBox1.Items
[Code] .....