Threading in ASP.Net

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Hi,
i have asp.net web application. Every 12 hours i want to do something - check some data and then send the email. Is threading good soluton for this. Does anyone has an example?

If i do like that

C#

public delegate void Worker();
private static Thread worker;

public static void Init(Worker work)
{
    worker = new Thread(new ThreadStart(work));
    worker.Start();
}

public static void Work()
{
    AppLogic.SendMailTo("Something", "Something", true, "some.mail@gmail.com");

}

and call whis thread

C#

Init(Work);

Then asp send mail every time, when someone visits this page. How can i send this email every 12 hurs?

Thanks

Posted 24-Jun-14 3:57am

vezo11

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[no name] 24-Jun-14 10:04am

No. Threading is not a good solution for this. Using a website as a scheduling device is bad design. Use a scheduled task.

vezo11 24-Jun-14 10:18am

Ok, thanks!

2 solutions

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Dave Kreskowiak · Accepted Answer · 2014-06-24T04:04:00

Solution 1

No, threading is NOT a good solution to this. ASP.NET code only runs when a request is received from a browser. It's not running all the time.

This requirement is better done as a console application executed by the Scheduled Task service in Windows.

Posted 24-Jun-14 4:04am

Dave Kreskowiak

Comments

Sergey Alexandrovich Kryukov 24-Jun-14 11:19am

Correct, a 5.
—SA

vezo11 24-Jun-14 12:53pm

Thanks. I use this solution link. But in Global.asax file i have Application Language="C#" Inherits="AspDotNetStorefront.Global". If i remove "Inherits" this solution work, but other sites doesn work... Do you have any idea why or if can i move this soluton code in any other file?

Dave Kreskowiak 24-Jun-14 12:58pm

This doesn't make any sense. All you need is the two methods in the Global.asax file. What you're talking about isn't even part of Global.asax and would have no impact at all on how Global.asax runs.

vezo11 24-Jun-14 13:06pm

I added the same code that you can see in the link above. Then i add breakpoint in line with code myTimer.Elapsed += new ElapsedEventHandler(myTimer_Elapsed); and this exception does never fall. If i remove this Inherits, the program stops at exceptions and then give mi null exception, because they dont find some file.

Dave Kreskowiak 24-Jun-14 13:03pm

On top of that, the code you found fires the Timer every 5 seconds. The Elaplsed code should be checking the current time against the scheduled time to determine if the code you want to run on the schedule should be executed.

If you didn't do that and just set the Timer for 12 hours, you'd be getting a 12-hour delay before your "scheduled code" would execute, starting from the time the first request comes in to your website.

vezo11 24-Jun-14 13:09pm

Yes i know. I try this solution and to start, i send email every 5 seconds. But this doesnt work (watch comment above).

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2014-06-24T04:05:00

Solution 2

See my past answer - How to send Automatic Messages from Asp.net C#?[^].

You should use a Task Scheduler for this type of Tasks.

Posted 24-Jun-14 4:05am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

vezo11 24-Jun-14 10:17am

Thanks! In your past answer i find this Link, do you think like that?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 24-Jun-14 13:20pm

You can try that.

vezo11 24-Jun-14 13:23pm

Yes i try and i have a problem. Read above, if you can help. Thanks