I have a WCF service, which I can open and close by doing:[code]The problem with this is I have "downtime" of the service in between myService. Close() and newService.Open(). if anyone tries to connect while this is happening it fails. how can I make the "downtime" as small as possibel?
View 12 Replies
I am developing a Windows Service in VB2008 and am in the testing stage. What I have noticed is that if I Pause it while it is busy doing something and then resume it, the process generates an error. While I am debugging this I wanted to determine exactly what the difference is between Pausing/Resuming and Stopping/Starting a service.I searched, but most results simply told me how to Stop/Start/Pause and Resume a service, a hurdle that I jumped over many years ago. Does any one know of any resources that go into detail what happens when a service is stopped vs when it is paused?From some experimentation, it seems that if I do not place any code in the OnPause and OnContinue events the Pause/Resume commands have no effect.
View 1 RepliesSince the coming of Windows7 at our office we have sometimes the issue that the print spool is crashing.Users don't have admin rights to restart the service so that leaves them only at restarting their computer as solution.Which costs alot of time... As we cannot find a final solution to this problem I've begin to write a small tool so they can restart it..I've only hard code a local admin account in the source for this operate for them..
[Code]...
I have some experience using visual basic 2005 I m doing a program to resemble vegas slot machine.. I am using 3 labels to display the numbers. There are 3 buttons. One is "START", "STOP", "EXIT". What i wont to do when i press the start button the 3 lables should start displaying various numbers(continuous changing single digit numbers). when stop is pressed labels should stop at the current number . based on the current numbers in labels, some function is executed(output is provided) What i have done
[Code]...
i have a for each loop i.e
[Code]...
if want that the loop stops while the player play a file until finished playback
I have a background worker which runs, at the start it stops a timer which has it's interval set to 500ms, at the end of the bgworker sub it starts it again. I've debugged and found out that the line that starts the timer up again (tTimer.Enabled=True) runs. However the timer does not resume. I'm don't know, but I'm thinking perhaps because I'm stopping and starting it on another thread it's not resuming properly or the sub it was attached to (via AddHandler) has been reset or something so it's running but not running the code in the sub it was attached to. If I never stop the timer in the code, it continues to run just fine, but I need it to stop at the start.
View 2 RepliesI am working on a Windows Service application in VB.net 2008. The main objective of the application is to monitor starting and stopping of applications listed in a file. I build the service as system level by using
mManagementStartWatcher = New ManagementEventWatcher("Select * From Win32_ProcessStartTrace")
AddHandler mManagementStartWatcher.EventArrived, AddressOf
[code].....
We have a server with multiple services written in .Net 1.1 and 3.5 running on a Win 2003 server. Everything runs fine, but when we stop a certain service, an unrelated service stops. I have checked and neither has any dependencies. The service we stop is in 3.5, and the unrelated service that incorrectly stops is in 1.1. We get no error messages, nor event log errors, so we are baffled.Does anyone have an idea as to what may be causing this?
View 7 RepliesI know the title of this thread is a show stopper for a lot of us . But what I want to do is stop two services from running for a period of time then restart them. I know I can do this from the command prompt by using net stop servicename then restart with net start servicename. I need these two services stopped to do some work on the database. I do this manually right now and want to automate the process. I tried process.start with the command net stop but that did not work out. If I try the Process List I get the process running but not the services.
[Code]...
I have created a Windows Service in VB.NET (VS2010) that executes a certain task every minute. When the service is being stopped, either manually by the user, or when the system is rebooted, what can I do to make sure the task is being finished properly before the service is actually terminated?
View 1 RepliesI wrote a custom windows service (VB .Net) to run some processing on data files in the background of one of our servers. The service basically finds the next file to process, breaks it apart and makes a PDF or two - nothing super complicated. It utilizes a timer, if a file is not found, it waits a bit and checks again (repeat indefinitely). The service has run for a week or two with no issues/pausing/stopping. I have plenty of error handling for this and I have not been able to break it... until today.
[Code]...
We have service developed in Visul Basic .NET. This service utilizes some COM objects provided by SAP to access SAP database. This has been working fine till yesterday. On this Sunday, we upgraded the SAP system, and subsequently all other programs were also re-builded using the new DLL files (for the COM object). We tried doing the same for the service also. But it is not starting now. When started, it shows a message saying service terminated unexpectedly. This is probably due to the fact that it is not able to load the requisite DLL file.
View 1 RepliesAm trying the following to start a windows service
Try
Dim myController As New ServiceController("FCR GEFU Server 1", "10.1.1.208")
myController.Start()
TextBox1.Text = "Service Started"
Catch ex As Exception
TextBox1.Text = ex.Message
End Try
Am getting the following error:Cannot open Service Control Manager on computer '10.1.1.208'. This operation might require other privileges.How should I provide the log in credentials for the remote PC !?
My app (which runs ok as a standard user) requires updates to be installed, but I don't want to have to input the administrator username/password each time nor do I want to increase user privileges to administrator.
I have a windows service which handles the downloading of updates etc (running as Local System) but the start command needs to come from the main app (running as a standard user). This is not permitted and I get Access Denied.
I understand why this is happening but is there an alternative way to achieve this? I want to handle program updates as the standard user without using ClickOnce or installing to a non Program Files folder.
I've created a Windows Service and installed it via InstallUtil so I can test it out.The installation goes seamlessly, but it will not start from some reason. When I attempt to start it, I get an "Access Denied" error and that's it.
I haven't been able to find any information via the normal channels.I first thought to give the service admin rights, but that didn't work either.
I am trying to create a windows service that sits in the background waiting for programs to be started. When the programs start I want to be able to check a unique bit of information for each program (I believe GUIDs may provide this) to see what the program is. If the program is not allowed, I aim to provide a warning to the user and possibly close the program. The aim of the application is to identify when users are attempting to install additional software on to the computer so simply monitoring for a certain executable wouldn't work as msiexec is called for all MSI's and as I only want to stop blacklisted programs...this wouldn't work.
View 4 RepliesI have a small service which right now I just want to test by printing some string that is passed in and stored in a class.
Problem is everything works fine, service even starts fine as long as I don't call PrintDocument's Print function.
The moment I do that, the service never starts and I get Error 1053:Service didn't respond, etc error.
when I am using the following code. the kill all batch file internally calls a vbs cript like this when a batch file is called using CreateProcess() which internaly calls a vbs script like this cscript //e:vbscript xyz.vbs which intends stops and starts a service in remote PC as follows. But the service is stopping but it is not starting event though it start command is used what could be the reason...
sCommandLine = "SC \"&strMachineName&" stop xyzService"
WScript.Echo(sCommandLine)
Set poProcess = WSHShell.Exec(sCommandLine)
[code]....
i have a Windows service that is hosting a WCF service through net.tcp and this is working great. I have also created a WCF service application. I am trying to add the net.tcp service reference to the service application. Then I add it to the GAC that goes ok but if I try to RegAsm the WCF service application to allow it to be called from Server.CreateObject I get the error:
Warning: Type library exporter encountered a type that derives from a
generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be
exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)] and exposing an explicit
interface as the default interface to COM using the
ComDefaultInterface attribute.
It does not work. I have tried to call it through a class library but this does not work either as the end point is not set correctly.
I have a VB2008 application which can control a windows service i.e. start, stop, pause etc. This runs ok on a Windows XP machine but not on a Win 7 machine (message is - Service error cannot open <service name> service on computer '.') ( if I stop the UAC then it runs ok ). It seems to be a rights issue,
View 3 RepliesWhat i have to do is write a program to display multiplication table when a number is put into the textbox and it prints out multiples of 1-12
ex.
user puts in 5, listbox should say
5 x 1 = 5
[code].....
Is there a way to stop other subs from running while in a separate sub.
for instance say your in the sub
CreateNumber()
and the subs are setup like
CreateNumber()
AddNumber()
DeleteNumber()
Is there a way to be in CreateNumber() and call a function to stop AddNumber from running after creaetNumber() is finished? i just want my program to sit there to wait for an event to happen.
I'm currently programming a music software which plays notes which are listed. as timer ticks, the notes change and so it plays a different *.wav file. The problem now is that the previous sounds stops when a new sound starts. i want them to overlap each other until each one has finished. Code: my.computer.audio.play("file.wav")
View 30 RepliesI've been trying to create a timer that waits for another timer to finish with its coding and, when it's finished, executes a series of code before stopping itself.
This isn't the code for the actual program I wanted to implement this self-stopping timer in, but it's simple and has the exact same problem:
Public Class Form1
Private Synchro As New Timer()
Private Sub MeLoad() Handles Me.Load
[Code].....
The idea here is that it's suppose to (using a timer) show the messagebox ONCE and ONLY once per button click. However, what seems to happen (despite the fact that I have 4 ways of trying to tell it to stop) is that the program creates multiple messageboxes until there are a total of about 49 messageboxes on the screen at the same time. I don't know if I'm using the wrong event (unlikely as Tick seems to be the only timer event) or there's a way of stopping the timer that I don't know.
I created a service in VB.NET and it runs fine on Vista, I can log off and switch users and the service auto starts and continues to run every time without fail.If I install and run the service on Windows 7, it will not start after a logg off/on or after I switch users.
View 3 RepliesI'm trying to figure out the code for the timer that would allow me to stop the timer after X number of runs through the code. Here's what I have so far:
im tmr_cnt As Integer
tmr_cnt = tmr_cnt + 1
If CInt(boxAns.Text) = CInt(lblnum1.Text) / CInt(lblnum2.Text) Then
[Code].....
I'm developing an interface for users that will allow them to enter data into a database without having to know SQL. Problem is, some one out there probably does.
How can I stop them from deleting/screwing with my data when they're typing entries within my text boxes?
For example, I don't want anyone to be able to type in DELETE * or any other kind of SQL statements in a text box to ruin the DBA's day.-Nothing to see. Move along.
I have a vb.net application which does some processing. This processing can take a while. The application doesn't respond until the processing has ended and then it handle all events (such as click on buttons) that the user has done during the processing. I'd like to add a "Stop" button so that the user can stop the processing at some point. How can I do that? Could threading the processing (which is done in a function of the application) be a possible solution?
I tried to add a button which change a boolean value and putting the code of the processing function inside a while statement based on that boolean value. However it doesn't work because the click event on the button is processed only after the end of the processing.
Ok, so the PDF problem was traced back to when I would close the test build. When I would close my app via Me.Close the Adobe.exe was still an active process.
I have several forms that include multiple PDFs. I need to ensure that the Adobe.exe process is terminated during the exiting of my applications.
How is this accomplished or is there another way?
I used a combination of If and doWhile loop codes. Is it possible that the loop will stop at 2nd loop if it will perform a 3 loops?I'm creating an app that if the problem is got the match at 2nd out of 3rd loop, the loop will stop.
View 1 Replies
