I haven't written the Chat Server chapter, so I don't know exactly what is going on in the code. What I do know is the steps you are referring tell you how to generally implement this behavior. However, the code that comes with the book already has this set up for you.

Regarding the compilation setting: true forces the compiler to generate debug symbols and enables you to step through your code. With the setting to false, the code is optimized and you won't be able to debug.

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

So sir,

code is really running. The key thing is that i got key concept of CALLBACKS.

Well can you give guidelines for a webmail and a Mail server implementation. I have gone through chapter 2 (The wrox file share)too.
Or if you can suggest a suitable forum for this topic or another p2p book.

Regards

Sorry, no, I don't know of any books or web sites demonstrating web based e-mail systems.

I think Google does though....

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

Hi Imar
Ok I got your point. Can we discuss about chat applications more?

Can you give me idea about the various popular chat applications e.g.

Google chat application, or yahoo chat. On what basis these application works on?
Are they also using CALLBACKS as well or there is some different approach?

Gmail is built on which platform? How can we implement AJAX on your given applications?(specifically Chapter 2 & Chapter 4)


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Ankur Pandey

Sure, although I think you're better off posting a new topic in a more general purpose forum. Since this particular forum is for the book ASP.NET 2.0 Instant Results only, it's not very busy. Other categories here at p2p.wrox.com may attract more readers that can join the discussion. A very broad question.... Also, I am not into chat applications, so I don't have much to add here. I haven't used them, but I assume they indeed use something like callbacks to get data back from the client to the server and vice versa. I have no idea. I assume that Google built it all themselves.... That depends on what it is you want to do. Wrapping an UpdatePanel around your changing content is a good start, but obviously, there is much more. Get yourself a copy of Professional ASP.NET 2.0 AJAX to learn much more about Ajax.

Cheers,

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

Thanks Imar,

well thanks for your attention!

Although your most replies not give me any directions.
But Your last answer is promising...............

I have that book too

Thanks once again for your time

oh! ya one more thing your book is incredibly good. It is just a piece of cake. With proper demo of the various file. Just like a proper documentation.........


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With regards
Ankur Pandey

Correct; like I said, I am not much into chat applications, so I can't give you much direction there. The only proper direction I can give you is to another forum here at P2P where there are others that do have the ability to help you.

Glad you like my book.

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

Hi Imar,

I was trying more on the chat server. I added/deleted some records in user, messages, room tables. Then I use [email protected] to login. Then I just Saw the same thing that I observed before i.e. On typing and sending msgs they are not displayed in chat window also no more changes in database found. Then I ensure myself -- is there any exception or not?

But Regardless of these things I found no errors and the code not working as well. I also tried to run code after removing then <add /> tag from web.config (j# assembly).

What could be the possible errors?
## I have not changed the code even by a single semicolon...

Please guide me?

I am not sure how to help you.

The app works, as has been reported by others. If it doesn't work for you, it must be something with your setup or configuration.

However, that's pretty difficult to support for me over a web forum. You'll need to do some digging and debugging yourself...

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

Hi Imar,

I have figure out the problem. The application is throwing following error at runtime:
Failed to update database "C:\INETPUB\WWWROOT\CHATSERVER\APP_DATA\CHATSERVER DB.MDF" because the database is read-only.

To Resolve this I Grant the "write" permissions too in the application properties at INETMGR.
Also I ensure that the database must not be "Read- Only " from windows properties.(i.e. Right clicking on database and getting properties)

But instead of this it is not working

Can you figure out this?
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With Regards
Ankur Pandey