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Old September 13th, 2004, 01:39 AM
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Default How can i do Chat Application?

Hi,
I have to develop chat application in ASP.
How can i manage it...
Is there any database concept involve it.
If possible please give me some help code.

Advance thanks
~Storage
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Old September 13th, 2004, 01:54 AM
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Dear Storage
you can get the code of chatt in ASP from
http://www.codeproject.com/asp/PalaceChat.asp

Hope it works fine for you

(*_*)


Numan
--------------------------------------------------
Love is the most precious thing of this world. So find it and grab it!
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Old September 13th, 2004, 09:31 AM
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Some years back, I have created a chat application. I can give you details of it.

There was a page with 3 frames. #1 will show a form. #2 will show all the messages of current chat #3 will show the status, howmany members link to details of members etc.

I was using a database just to record the messages and help admin to check them and delete them. A simple chat can use just application object. No need of any database.

The most difficult problem I faced was how to post a new message immediately to the screens of other participants. For this, we should be able to raise an event on client browsers from server. This is not possible however. So I was polling the server at regular intervals to check whether any participant posted a new comment. This was done at a regular intervals of 20 seconds. This polling was done with the help of a page with a meta refresh tag.

The other difficulty was to intimate a person when an other person invites him. Again polling based on meta refresh was used by me.

I do not consider this to be a good method. It will load the server unnecessarily. Not all browsers will support meta refresh. And this does not seem to be a professional method also.

There should be someway to read a port on client machines through browser. Then there should be some method for server to write something to client machine port. Then this can be done successfully. However a extended search for such features for over a year did not produce any result. Finally I reached a conclusion that chats cannot be successfully built with browsers, ASP and JS alone.

I re-did chat tool with VB and winsock component. It was meant for intranet alone.

I am telling this not to deject you. My browser based chat tool was working but making our server crash every hour.

May be somebody tell us a way to read a port on client machine through browser. Also to write something to appropriate client browser when some relevant events (new user joins, a member posts a message) happens.
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