whenever 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.
I 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 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 RepliesI 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 RepliesI 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]....
So im pulling data from a db and then counting all the data on that db but it counts before the data is pulled. Anyway to stop this?
test.SelectCommand = Ssql
test.SelectParameters.Clear()
test.DataBind()
System.Threading.Thread.Sleep(1000)
counter = OSG.Items.Count
MsgBox(counter)
I 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 RepliesWhen I end my app by pressing the stop button in visual studio, is there a way for that event to trigger some exit code? I'd rather do that than include a visually distracting quit button.
Better still would be to program some kind of key sequence, eg control + q to trigger some quit code so my app can exit cleanly. Is this possible? I wouldn't know how to program a key shortcut but it might be handy.
I've seen on here how easy it is to disassemble code and wondered what levels of precautions people here have used or would use to make the process of hacking ones hard work.
All methods i have come up with are easily worked around. simply swapping the condition for a jump in assembly code would undo even password security.
Probably the most interesting idea i have come up with would need a c module in the project that would write into memory part of the routine on the fly (i.e. it writes the conditional jumps into memory using pointers but again all that is needed is to remove the c block and write the correct code into the exe file.
The only way i have seen is to create 2 passwords one for the application and a secondary one which is stored on a server so the software checks against a serial number database, this also is limited as unmodded it cannot detect if the user is legitimate, only that there is one person using a specific password at a particular time, and in any event it is still a case of changing the conditional jumps so it works when it is the wrong password or doesn't contact the site in the first place (or another site with a valid password and allows multiple users on its database)
How 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.
how to stop the application from doing the code on next line immediately when the user enters nothing in the textbox and pressed a button?
View 1 RepliesI have a combo box I am filling on form load.I am using "SelectedindexChanged" to detect changes in the index to run the code when the combobox is used.Unfortunately, it runs the code on start up as well.
View 5 RepliesI tried look online for a simple task but I haven't been able to find the answer. How do you stop a code for testing? I triedexit - only works for loops and if statementsstop - kinda works, but doesn't completely stopsend - the form disappears when it ends
View 4 RepliesWell, I've read (and learned) that the finally block doesn't always execute its code (even apart from pulling the plug).FYI For more information, see try catch finally question
[Code]...
I am trying to write a really simple piece of code that basically recognises if the string contains a full stop. The full stop can be anywhere within the string just a simple If String contains (".") Then
How would i write this?
I have a button with DialogResult OK set.
I'm using the following code to try and do validation[code]...
I add flash object to my form and i add button to play the movie using movie = "link here" work ok but i need to add stop button to stop the movie What the code to stop flash player from playing.iam using visual basic 2010
View 1 RepliesI have a program and the program works fine. The only thing is that I want to shorten it up and stop using the same code over and over. I use the same redudant code through out the code. I want to write some functions in order to stop from having to use the same code over and over in my program. I wanted to know if someone could help me with functions: Here is part of my code below.
[Code]...
I need to write a code to stop user from entering a duplicate course Id and I am having trouble.[code]
View 2 RepliesA spreadsheet formatter that I made for the department opens and closes Excel spreadsheets in the backround. If someone opens Excel while the macro is running, it stalls the entire program. I need a way to sense Excel opening, then stop it, preferably with a message box saying what just happened.
View 1 Repliesi 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]...
When a dialog form opens, does all code and timers stop until it is closed?
View 19 RepliesI have a dataset along with code for validation. When I use a datagridview and setting the EditMode to OnEnter I get the red exclamations telling me that I have an error when this is needed. This works all good. when I click the save button on the BindingNavigator, the application saves the record even when this validation is showing. How do I filter up this validation code through a datagridview and stop the program saving the data? If you need the code for more information, I will add this to the forum.
View 2 RepliesCan someone tell me how to stop the output of this code from placing a page break after it finds the selection.It's placing a blank page at the beginning and end of every printout.I suspect it has to do with the insert.break method, but cannot figure out what needs to be changed. [code]
View 2 RepliesI have got some code that is working as i have edited the game.exe at a certain address, now i know the code can find the address, but I don't know how to make it stop searching for it if it isn't there.
here is the:
code:
So what I want to know, is how to stop this code, if the address doesn't exist.
Out of curiosity, is there a way i can make a program stop or pause for a period of time (which i would choose) before continuing the code WITHOUT a timer.I think I've seen this done before, but I'm not positive.Also note that I'm talking about a forms application (not a console app if that would be any different.)
View 3 RepliesI have a sub routine that connects to a database. If the database is unavailable it takes about 45 seconds to timeout, even though I used connect timeout=10 in the connection string.
So I figured I would try using a timer. This is how I have it
Private Sub SQLConn()
Timer.start()
SQL.Open()
Timer.stop()
Private Sub Timer2_Tick
(this is where I need to put a command to stop the sub SQLConn)
I have the timer set at 10 seconds. Unless there is a better way to do this what command can I use to stop the connection or the sub?
I have the following
Public Class Form1
Private GIFAnim As Image = Image.FromFile("c:cointosscointoss_ani.gif")
Private frames As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[CODE]...
Now I would like to put a wait in after the line:
frames = GIFAnim.GetFrameCount(Imaging.FrameDimension.Time)
ImageAnimator.Animate(GIFAnim, AddressOf paintFrame)
This is so that the animation has time to play and stop and then the rest of the code will display the other picture and the numbers. Is this possible? I tried timer and sleep but I cant get them to work.
I 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 Replies