VS 2010 Stop Button Code Execution At Some Point?
Feb 26, 2012Is there any way to stop the execution of the code that's under a button if for example a certain condition is met?
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VS 2010 - Threading - Button To Stop Execution Of Code
Apr 22, 2011I 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.
Completely Stop Code Execution?
Feb 6, 2012How can I completely stop code execution?
Also, how can I hide a form and keep all information saved so I can bring it back up again?
For instance, I have form1 with "alpha" written in a textbox. Now when I hide form1 (Me.Hide), I would like to be able to bring form1 back with "alpha" still written in the textbox.
Currently, I hide it, and when I show it again, the textbox is empty.
VS 2010 : Use A Stop Button To Stop A Loop?
Dec 7, 2009I 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]....
VS 2010 Stop A Block Of Code Executing When User Clicks "Stop"?
Mar 1, 2011I 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"?
Make An Application With A Start Button And A Stop Button On A Stop Watch Program?
Nov 1, 2009I 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,
Stop A DialogResult OK Button From Executing Using Code?
Jan 16, 2011I have a button with DialogResult OK set.
I'm using the following code to try and do validation[code]...
Form Execution Stop After ExecuteScalar
Nov 28, 2011It worked fine till i applicated some conditions... Now my form execution stop right after a ExecuteScalar.[code]
View 2 RepliesStop Execution In Repetition Structure?
May 11, 2012I need to stop the execution of a program in VB.net. Within a repeating structure the program checks whether a variable is true or false. When the variable is false I need to stop the program execution. I do not want to close the program but simply stop it. One way I found was raising an exception, but I would not want to display the error message to the user. What is the best way to do it ?
Do
If myvariable=false then
throw new exception... 'Silent exception
end if
Loop until ....
Stop Execution Of Net Application For About 20nanoseconds?
Dec 31, 2010I want to stop the execution of my .net application for about 20nanoseconds
so i am trying to measure time needed for specific samples of code, and i want a code that takes only 20nanoseconds
Stop Method Execution With Timeout
Sep 14, 2009my application has integrated an external library with long running math-evaluations. It happens that some calls to functions in this library start but do never come to an end.
Unfortunately I have no chance to look examine the behaviour of the library. So I got the idea to stop my function calls to the library after a timeout.
Has anybody an idea how to manage this an to control the execution of a function, i.e. to stop it hardly after a certain time?
Video Playing Code In Button Click Must Stop For 5 Seconds?
Mar 15, 2012i 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.........
[code]...
Stop A Program During Execution Any Other Way Than By Throwing An Error?
Aug 19, 2009Is there a command that will stop the execution of my program?
I have a service that is processes an exchange account via telnet every 10 minutes. During one point of execution the application could possibly have a response from the telnet session when there are NO e-mails in the folder, which would look something like this[code]...
So is it possible for me to just stop my application at that point since there's no point in continuing if there are no e-mails in the account?
Stop Execution Of A Program Without Ending Application?
Jun 15, 2011I have written a converting program, which converts binary files to ASCII files. (VB.net 2010). I need to have a functional "stop" button on the form and I was wondering if there was a simple command to make a program stop, exit all procedures, and wait for user input on the form.
It is not feasible to multithread this application, as it frequently interfaces with the form. Currently, I have a global boolean variable which becomes true if the stop button is pressed, and I have internal loops checking to see if the variable is true. However, I don't to waste CPU on checking a variable if it's not necessary.
Multithreading - .Net: Does Debug.Writeline Stop Thread Execution
Aug 19, 2009I have a vb.net application that uses threads to asynchronously process some tasks in a "Scheduled Task" (console application).We are limiting this app to run 10 threads at once, like so:
(pseudo-code)
- create a generic list of 10 threads
- spawn off the threadproc for each one
- do a thread.join statement for each thread to wait for the longest running one to complete.
What i am finding is that if the code called by the threadproc contains any "Debug.Writeline" or "Trace.Traceinformation" statements, the thread hangs. I can see the thread in the Debug - Windows - Threads window, and switch to it, but it highlights the debug.writeline statement and never gets past it. is there something special about the Debug or Trace statements that make them non-thread-safe? Any idea why this would hang things up? If I leave the debug statement in, the thread never completes. If I take the debug statement out, the thread completes in less than 5 seconds.
Stop Command Execution And Restore To Initial State?
Nov 24, 2009I am checking to see if a textbox contains a number, or is null. If it is non numeric or null a message box appears asking the user to input the proper value. When the user clicks OK on the msgbox the program will continue to execute the code. I want it to stop executing the code and revert back to its default state as it would be if you just opened the program. What is the command for doing this so I can add to the if statement?
Dim numCheckV as boolean
numCheckV = IsNumeric(Vinput)
If numCheckV = False OrElse TextBox1.Text = "" Then
MsgBox("Please enter voltage!")
End If
VB 2010 - How To Stop Loop With Button
Nov 5, 2011I 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 RepliesVB - Get VS 2010 To Stop Recommending VB6 Code
Oct 20, 2011whenever I have to convert something to a value (for example,lets say I have to convert something to
a boolean) visual studios will give you their advice of CBool, which works, but that's VB6 and I do
not want that. If you know of a plugin that does it, I'm open to that as well.
VS 2010 Stop Executing Code?
Dec 13, 2011I am compiling and running code at runtime. Can I 'stop' this code midway through if I wish? Like the 'stop' feature in Visual Studio that stops the code if desired
View 2 RepliesVS 2010 : Search For Text Within A String (Starting Point And Ending Point)?
Dec 31, 2010I'm trying to extract a piece of text from within the string, defining both a starting point and an ending point. For instance, say I want to search for the text found between "That is a " and " car" in the string "That is a red car", so it would return "red".I know you can use .SelectionStart and SelectionLength, but the length of the word can change, so the selection length can vary. What I want is to establish a specific starting point and a specific ending point from which to extract the text from the string.
View 5 RepliesStop PictureBox Moving On Screen At Certain Point
Mar 14, 2011I have a picturebox that is moving across the screen. At the moment I want it too stop at a certain point until a button that is called next is pressed. I then want the picture box to carry on moving across the screen (The total number of times I want this to happen is 5)
Dim nextcommand As Integer = 7
Dim rewindcommand As Integer = 7
Dim x As Integer = 144
Dim y As Integer = 44
Private Sub NextButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NextButton.Click
[Code] .....
VS 2010 Loop In A Variable And Grab Info From Point A To Point B?
May 24, 2010I want to know if its possible to loop in a variable and grab info from point a to point b
This is what I have stored in my Variable
PHP
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<div class="list_address">
[Code].....
Stopping Multiple Timers - Stop Button To Stop Each Timer One At A Time
Feb 26, 2009Alright, 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:
Make Multithreaded App Stop At A Certain Point And Wait For The User To Type Something Into A Text Box
Sep 19, 2010I'm trying to work out how i can make my multithreaded app stop at a certain point and wait for the user to type something into a text box and click ok. It must then carry on and when a different thread gets to that point it stops again and waits for the user to input some text again.
View 1 RepliesRead Text File / Stop To Show Error And Continue At Last Point
Dec 15, 2009I got an text file that record data, and I need to read the data and do some comparisons. All data read will be showed in a form. If the data is fail, I need to show an alert to the user and wait for user to respond. If user responded to the alert, the program will continue to read data and do comparisons. The issue that I'm facing is that I don't know how to continue read file from the last read point.
View 19 RepliesVS 2008 Stop Threadpool With A Stop Button?
Dec 24, 2009I 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]....
Halting Program Execution With A Button?
Nov 25, 2010I'm attempting to display records on the screen 30 records at a time. When totrec is greater than 31, I was hoping the program execution would stop at the line "btn30to60.Focus()".Instead, execution continues and the sub "between31and60" is executed.If anyone has a simple way to halt program execution until the user clicks on the button "btn30to60"
Code follows:
If totRec > 30
And totRec < 61 Then
Call lessthan31()
[code]....
End The Execution Of The Rest Of The Code?
Sep 2, 2009i am getting an input from the user and i m checking in try catch statement. what i want to do is when the exception is caught i want to stop executing the rest of the code. my code is as below
Public Class AddForm
Private Sub Add_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add.Click
Dim inc As Integer[code]......
Getting The Dynamic Code Execution?
Aug 23, 2010i'm building a basic server program that I want to recieve commands and execute them sent from a client program and I'm using my home network to test it out. I've got no problem with the communication between the client and server programs and have used a simple Send Text function to communicate to the server program which simply brings up whatever text was sent in a message box.
I've decided that constantly updating the program and transferring the new EXE file just doesnt work as I have to keep starting and stopping the server program to do that just to update the list of commands it recieves. So say for example I've got a button on my client program that tells the server to open the cd-rom draw on that computer, it sends this in the form of simple text openCDdraw" and when the server recieves this, it pops open the cd draw and so on and so on... but I thought a better way of doing this may be to say have the commands listed in a SQL database and when the server recieves a message it searches through the database to find the correct command and executes the code associated with the command.
Now I can retrieve the information fine in to a string variable ("Dim a as string, a = dr.getvalue(3)") but where do I go for there? This is the problem see. My apologies if I've gone a bit long winded on this one but thought it necessary to explain what I'm doing. I've heard of dynamic code execution but when I tried a project I found on the internet it had been coded in C# and I don't know any C nor do I want to as I'm a VB veteran and have updated myself with the way of .NET now so am not going to start all over again with learning C. Does anyone know of an easier way of doing this? Static code is so easy to do because it is typed straight into the coding sections and I had already thought about creating loads of subs/functions to execute each command but again that involves updating the EXE file every time so there must be a better and easier way of doing it.
Can I also just point out that this little project i'm working on is not for a TROJAN or whatever that old NETBUS program used to be called, it is simply so I know how to do it and can use it for other things that I'm working on and through. Also I'd just like to know how to retrieve and execute code from a database or text file.
Try Catch Not Stopping Execution Of Code?
Jul 6, 2011I have been experiencing a problem with one of my Try Catch blocks. Specifically, I have a block of code that inserts data into a db using a stored procedure. There is a problem within the code getting one of the parameters to the SP. I know what the problem is and how to fix it. My issue is that the Try Catch should be stopping any further execution of code once it catches the error. I have verified that the error is being caught and that it sends the exception to my label used for error reprorting. However, instead of stopping future execution and displaying the error it rolls over the label assignment and continues to the next piece of code in the calling procedure. In essence, it is as if there is no error occuring at all.To give everyone a point of reference, I call a sub-routine from a button click event. Within the sub-routine I have my Try Catch block with the SP code. I am NOT using Try Catch Finally. It is simply Try the SP Catch ex as Exception and End Try.
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