Duplicate Mail send Issue

Question

0.00/5 (No votes)

See more:

Hi ,
We create Windows Service For Sending Mail.
MY mail Service Started Every 2 minute .But When Service started Service Send Duplicate Mail Because of First Running Service Not Completed Task in 2 Minute at same time again new window service started.
and take same data from table and send same mail.
how to resolve this issue?

Posted 6-Jan-15 0:10am

Rahulgupta.hanu

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Praveen Kumar Upadhyay · Answer 1 · 2015-01-06T00:20:00

Solution 1

There are many ways to achieve this.
1) in OnStart method you can use call your code in a while(true) loop and can put sleep after execution.

C#

protected override void OnStart(string[] args)
{
    while(true)
    {
          SendMail();
          Thread.Sleep(2000);//2 second sleep
    }
}

2) You can use Timer object to do the same.

Check below article for Timer object.
http://www.codeguru.com/csharp/.net/cpp_managed/windowsservices/article.php/c6919/Using-Timers-in-a-Windows-Service.htm[^]

Posted 6-Jan-15 0:20am

Praveen Kumar Upadhyay

Comments

Rahulgupta.hanu 6-Jan-15 9:06am

I used Thread.sleep But Issue Not Resolved.

Praveen Kumar Upadhyay 6-Jan-15 9:30am

Can you make a file log after sending the mail and check if file log is two times. Sometimes it happens with the mail server also and it sends the mail two times.
Otherwise the code which I have mentioned will definitely work.

Sanket Saxena · Answer 2 · 2015-01-06T00:26:00

The following method tries to start a service specified by a service name. Then it waits until the service is running or a timeout occurs.

C#

public static void StartService(string serviceName, int timeoutMilliseconds)
{
  ServiceController service = new ServiceController(serviceName);
  try
  {
    TimeSpan timeout = TimeSpan.FromMilliseconds(timeoutMilliseconds);

    service.Start();
    service.WaitForStatus(ServiceControllerStatus.Running, timeout);

    //Manage your send mail code here
  }
  catch
  {
    // ...
  }
}

Hope it helps :)