How to Know Clint online or Offline

Question

1.00/5 (1 vote)

See more: (untagged)

Dear All Senior Programmer,
I created Client program and server program, when the client program is run I can show this client is online, the question What and where write code to know he is offline when shutdown his computer or hibernate it,
thanks and best regards,

Posted 14-Oct-13 3:36am

Mohamed Gamal Abdelnasser

Add a Solution

Comments

ridoy 14-Oct-13 10:01am

language,platform?!

Mohamed Gamal Abdelnasser 14-Oct-13 16:46pm

C#

Richard MacCutchan 14-Oct-13 10:08am

Unless the client sends you a message then there is no way to know. All you can tell from the server, is that the connection has closed or is timing out.

1 solution

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)

Sergey Alexandrovich Kryukov · Answer 1 · 2013-10-14T08:08:00

Solution 1

No way. From the standpoint of the server part, an off-line user does not even exist. In the systems with authentication, you can safely restart the system ("safely" would mean "without any loss or messing up of user-related data") when all users are logged off. For example, you can block logging on for all users and then wait until the last user logs off.

—SA

Posted 14-Oct-13 8:08am

Sergey Alexandrovich Kryukov

Comments

Mohamed Gamal Abdelnasser 14-Oct-13 16:53pm

My Program created by c# and I want add code in client program when client log off from her computer or hibernate it the program update the client status is offline
thanks

Sergey Alexandrovich Kryukov 14-Oct-13 17:02pm

And? How is this related to your question (which you already claimed "solved")? Please see my comment to your "Solution 2", which is not a solution.
If you have a question, just ask it. I already answered your original question in full. If you disagree, please explain it.
—SA