Databases
StackOverflow2013
Postsdbo
POTimer not firing in Windows Service but fires when in a console app
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POTimer not firing in Windows Service but fires when in a console app
    primarykey
    data
    text
    <p>I'm trying to use a timer in a windows service, I install the service and start it up in the services but the timer won't fire. However when I use this exact same code in a console app then the timer fires. I have tried a lot of different suggestions and none of them seem to work for me in a windows service</p> <p>Here is my code...</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Linq; using System.ServiceProcess; using System.Text; using System.Threading.Tasks; using System.Timers; using System.IO; namespace NextService { public partial class Service1 : ServiceBase { private System.Timers.Timer aTimer; public Service1() { InitializeComponent(); } protected override void OnStart(string[] args) { aTimer = new System.Timers.Timer(10000); aTimer.Elapsed += new ElapsedEventHandler(aTimer_Elapsed); aTimer.Enabled = true; aTimer.AutoReset = true; aTimer.Start(); } private static void aTimer_Elapsed(object sender, ElapsedEventArgs e) { string path = @"c:\MyTest.txt"; if (!File.Exists(path)) { // Create a file to write to. using (StreamWriter sw = File.CreateText(path)) { sw.WriteLine("Hello"); sw.WriteLine("And"); sw.WriteLine("Welcome" + DateTime.Now.ToString()); } } //throw new NotImplementedException(); } protected override void OnStop() { } } </code></pre> <p>}</p> <p>I just don't understand why it will work in a console app and not in this service. I'm just having it create a file on the fire event to test before I put my code to it.</p> <p>Thanks</p> <p>Updated Code with Thread timer</p> <pre><code> protected override void OnStart(string[] args) { TimerCallback callback = aTimer_Elapsed; Timer timer = new Timer(callback); timer.Change(TimeSpan.Zero, TimeSpan.FromSeconds(10)); Thread.Sleep(10000); } private void aTimer_Elapsed(object state) { string path = @"c:\MyTest.txt"; if (!File.Exists(path)) { // Create a file to write to. using (StreamWriter sw = File.CreateText(path)) { sw.WriteLine("Hello"); sw.WriteLine("And"); sw.WriteLine("Welcome" + DateTime.Now.ToString()); } } } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USChris
    1. USChris
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COThis could be a problem with file permissions. Is the user account the service is running under an owner of `C:\`? Check the event log for errors from the service. I bet the timer is firing, but the service is failing at creating the file.
      singulars
      1. POTimer not firing in Windows Service but fires when in a console app
      1. USDan
    2. COI have it set to localservice, I have my UAC disabled
      singulars
      1. POTimer not firing in Windows Service but fires when in a console app
      1. USChris
    3. CONever skip using try/catch in a timer's Elapsed event handler. It will swallow exceptions without a diagnostic. You'll need to log the exception in your catch clause.
      singulars
      1. POTimer not firing in Windows Service but fires when in a console app
      1. USHans Passant
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload