Where instantiate System.Threading.Timer

Posted on 2010-08-18
Last Modified: 2012-05-10
Dear experts,

I want to use System.Threading.Timer. My question is, where should I instantiate it to start ticking? I probably want to do it only once, and not on each Page_Load().
I trued to do it like this:
    private readonly System.Threading.Timer tpsTimer = new System.Threading.Timer(CheckForPastDue, null, 10000, 5000);
on my page (rather, MasterPage), but it didn't work as the CheckForPastDue method is not static.
Question by:tantormedia
  • 3
  • 2
LVL 33

Expert Comment

ID: 33465403
What do you need a timer for?  You might have much better luck with the javascript "setTimeout" function.  Due to the stateless nature of web pages, I don't see how a server side time object will do anything meaningful for you.

Author Comment

ID: 33465846
I want the timer to call a method that checks if some items are past due, and if there are any, to send email notifications.
I cannot use PageMethod as it has to be static, which I don't want.
LVL 33

Accepted Solution

raterus earned 500 total points
ID: 33465967
In the past, when I have to do something like this, it's completely outside of  I'll write a console based .net program that runs the check/sends emails, and then enter a scheduled task on the server to have it run every as often as it's needed.

There are also workarounds using the cache object that calls a method as often as you'd like,

The only downside to the latter approach is that the application will never shutdown on the webserver, which just uses up more server resources.
What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

LVL 16

Expert Comment

by:Vikram Singh Saini
ID: 33466526

Try it in Global.asax.


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;
using System.Threading;

namespace TestNet4
    public class Global : System.Web.HttpApplication
        void Application_Start(object sender, EventArgs e)
            private readonly System.Threading.Timer tpsTimer = new System.Threading.Timer(CheckForPastDue, null, 10000, 5000);

        void Application_End(object sender, EventArgs e)
            //  Code that runs on application shutdown


        void Application_Error(object sender, EventArgs e)
            // Code that runs when an unhandled error occurs


        void Session_Start(object sender, EventArgs e)
            // Code that runs when a new session is started


        void Session_End(object sender, EventArgs e)
            // Code that runs when a session ends. 
            // Note: The Session_End event is raised only when the sessionstate mode
            // is set to InProc in the Web.config file. If session mode is set to StateServer 
            // or SQLServer, the event is not raised.




Open in new window


Author Comment

ID: 33467821

Thank you for your answer. But my manager just said it should not be connected to my application, but has to be a separate program.

Author Closing Comment

ID: 33467830
Thank you for your help. I will also go with a Console application using System.Threading.Timer.

Featured Post

Highfive + Dolby Voice = No More Audio Complaints!

Poor audio quality is one of the top reasons people don’t use video conferencing. Get the crispest, clearest audio powered by Dolby Voice in every meeting. Highfive and Dolby Voice deliver the best video conferencing and audio experience for every meeting and every room.

Join & Write a Comment

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

747 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now