I'm trying to close down a program from within the constructor for the main form. I've tried Me.Close() but this gives an error: ObjectDisposedException was unhandled. Here's the details:
System.ObjectDisposedException was unhandled
Message=Cannot access a disposed object.
Object name: 'Form1'.
[Code].....
I have a simple GUI form to hide / show / minimize / terminate / force terminate Processes. i can do all well but for show and hide i need the MainWindowHandle to show or hide it
So here is hide process code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,0)
If i try the same with show code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,9)
The MainWindowHandle become 0 cuz its hidden is there is any other way to get the MainWindowHandle of Process ?
In certain error situations within my VB 2008 code, I need to quickly terminate the program. This should be simple, but I haven't been able to figure out how to do it.
View 5 Replieswhen i run any of my program this error is show to me i don't know why, "it said that the program will terminate OK".
View 13 RepliesI've started a process through system.diagnostics .process.start("C:/process.exe")Now my question is, how can I terminate the same process in vb.net
View 4 RepliesI am trying to end a program immediately when a critical exception is caught. But I am finding that code after my Try/Catch block is executing even though the code withing the Catch block is executing, and that Catch code is calling Me.Close.
I suspect it has something to do with background .net threads or something, but I have no clue how to deal with those kinds of issues. How can I stop the program as quickly as possible? If code after my Catch executes, it will (and does) throw lots of uncaught exceptions later. Currently, it is not feasible for me to try to catch all the other exceptions. I just want to report an error and end the program.In my form load routine, I create and set up a number of objects and arrays by calling various subroutines.The success of most of the subroutines depends on the sucess of three subs in particular, which are called early on. If one of those three fails, there will undoubtedly be a number of hard to trap exceptions later on in the load routine.
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I have just started a simple project in VB 2008 express (having previous experience (not much though) in VB6). At the moment I have only 1 form and when I click on the red x close button the form closes but the process is still running in task manager. I have the following code which I assumed would exit the program and terminate the process but it doesnt seem to work[code]...
View 6 RepliesHow to terminate function/code (not entire page) when it takes some time, for example, more than 1 sec?[code]...
I found the command "Server.ScriptTimeou", but it stops the entire page instead of one command.
I have just built a full main menu for my pc game and need to terminate the running program using a button held within the form. I have built a button labeled exit and tried a couple of closing codes such as:
Me.Close
ExitApplication
Is it possible to terminate a program from another program, Or maybe exchance a handler so it can close down itself when neccesary?
View 2 RepliesYou can install certificate into certificate store using Wizard in certmgr.msc (Right click install)? Does anyone knows how to "cleanly" remove all the certificate by either using wizard/Code (pref.) /Script ?
I want to be able to remove everything (that I have installed earlier) from the LocalMachine and/or CurrentUser Store without leaving any residue.
I've got a serial port handler which all works fine:
Port = New System.IO.Ports.SerialPort(MyProperties.ComPort, MyProperties.BaudRate, Parity.None, 8, StopBits.One)
Port.Open()
AddHandler Port.DataReceived, AddressOf port_DataReceived
[code]....
Until I try and close the port (Port.Close()) and the app when I get this error:28/09/2010 08:25:57 ERROR:[port_DataReceived] The I/O operation has been aborted because of either a thread exit or an application request.How do I stop it cleanly?
i turn on my computer and appear this " Ixdn MsdMon.exe-fatal error CLR error: 80004005 the program will now terminate" and the computer runs very slow
View 1 RepliesI'm developing a program using VB 2005.I've tried to use the following instructions to "kill" the application
Application.Exit()
Environment.Exit(0)
(not at the same time)
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Suppose I have an interface IFoo with implementation classes VideoFoo, AudioFoo, and TextFoo. Suppose further that I cannot modify any of that code. Suppose that I would then like to write a function that acts differently based on the runtime type of IFoo, such as
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Then I have to do my "If TypeOf ... Is" again. How can I refactor this to take advantage of the polymorphism of the implementations of IFoo without manually checking the types? (in VB.NET, though my question applies to C# too)
I noticed that when the app closed the icon remained on the taskbar until the mouse was hovered over it, so added this:-
If Not AlarmClockNotify Is Nothing Then
AlarmClockNotify.Dispose()
End If
.. and that did the job.
Then I noticed that if the balloon was showing at the time the app was closed, the icon went - but the balloon stayed, so added this:-
If Not AlarmClockNotify Is Nothing Then
AlarmClockNotify.Visible = False
AlarmClockNotify.Visible = True
AlarmClockNotify.Dispose()
End If
and everything worked fine until the app was closed WITHOUT the icon showing (only dislays if an alarm is pending in the next x days) - then it throws and 'object reference not set to an instance of an object' - odd because it passed straight through the 'not is nothing' If statement.
Hi. I have 2 toolbars and want to show only one at a time.
But when I swap them using .visible, it updates the form each time I switch one on/off, so it's all flickery and slow, and other controls resize to suit the indermediate state.
How can I do it cleanly?
While developing on Visual Studio Express 2010, there are two buttons: Start Debugging, and Stop Debugging.
View 4 RepliesI'm currently practicing working on mobile application using vb .net 2008. So I have these 5 forms that I link together. The form # 2 is where my quit button was positioned. I want to quit the whole application but form # 2 was the only form that is terminated while the rest of the forms was not.
View 2 RepliesI have a DLL that copies an Access database, opens it, reads it, and then closes it. The second time through it is unable to copy the Access DB because the EXE has an open handle to it. The EXE does not reference the Access DB at all, it just has the open handle because it calls my DLL. After I close the DB, I would like to terminate the EXE's handle to the Acess DB. BTS - I wrote the DLL and it is my Access DB. Another company wrote the EXE and I can not make any changes to it.
View 5 Replieshow about to terminate a tcp connection My program can view all the TCP connections and i want to terminate some connections but i realy don't know how to terminate some connection from another process
View 27 RepliesI have a website, that needs to not allow simultaneous logins. I am controlling that by cache. But, now I am unable to give them the option to log out the other session. Goal: is to allow them to login, and when they do, tell them that the current user is already logged in, and give them an option to close that session, so they can continue logging into the system (website).Have not found any way to terminate a specific SessionID. oh BTW, I do have the sessionID of the parallel session, just dont know how to kill that one. Again note, I do not want to close this current session, but another session whose SessionID I have.
View 2 RepliesI am not able to get the exit window button to terminate once I click on it. I am not sure what I am doing wrong. This is the code I am using for it: btnExitWindow.Enabled = True. Everything else is working fine when I run the program.
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I want to terminate an application using the full file path via vb.net, so I am using this code snippet.
Public Sub forceCopy()
Try
'Dim strDatabasePath As String = My.Computer.FileSystem.CombinePath(Application.UserAppDataPath, "LIC.mdf")
Dim strdbLogPath As String = My.Computer.FileSystem.CombinePath(Application.UserAppDataPath, "LIC_log.ldf")
[Code] .....
I get an exception "Access Is Denied". I get the error at this line : For Each m As ProcessModule In process.Modules
I need to terminate a method of button1_click if a condition is true.[code]
View 4 RepliesI wrote the following code to build a basic game that makes two cars race (randomgenerator) and let the user pick their bets on the end results. I've gone terribly wrong somewhere in that my cars only race halfway then get stuck behind the start line and the programme keeps repeating the beeping and the messsagebox.show and adding results to the 'incorrect' box.
The only way to terminate the application is to hit 'stop debugging'.
Option Explicit On
Option Strict On
Public Class MainForm
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I need to open, and when done, close an external Exe. In this instance, the Windows Calculator. Here is what I'm doing
vb.net
Public Class Form1
Dim MyProcess As System.Diagnostics.Process
Private Sub btnOpenCalc_Click(ByVal sender As System.Object, ByVal e As
[Code]....
From what I've seen and read, this is the way to terminate a running exe isn't it?
I'm having troubles with terminating an application. When I close the main form everything disappears but the process remains active. I think I know the cause, a certain activeX component will not release properly. As soon as I create one, I can't close normally...
dim someActiveXcomponent = new X()
...
<formClosing>
someActiveXcomponent = nothing
GC.Collect()
GC.WaitForPendingFinalizers ' here it hangs
Probably a bug in that component, but the problem is that I don't have much of a choice, I'll have to use that component for now.
Calling
System.Runtime.InteropServices.Marshal.ReleaseComO bject( myObject )
will kill the reference and now the application closes properly.
i know this is a big problem for a lot of people and there are posts everywhere..below, should this complete and close and terminate excel correctly? or am i missing something.
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I am working on a Windows Service project that is supposed to start automatically with Windows and it has a timer to check if a certain process is created (in this case "iexplorer") the service should terminate that process. In addition, the user should not be able to stop the windows service.
I was able to create the process and make start with Windows. I changed the property (CanStop) to False but that did not help because after a few tries the servise stops. I used a For-Next loop in the timer to check for the process to terminate but unfortunatly, it didn't work. The code I used is:
Dim theProcesses() As Process = System.Diagnostics.Process.GetProcessesByName("Iexplore")
For Each currentProcess As Process In theProcesses
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