Updating a web page from an application

[Andrew Chalk]

I want to have a web page that reports the real-time "status" of an
application. It must be updated with changes in status, which may occur as
frequently as once a second. What is the best way to model this in ASP? I
haven't dealt with web pages that reflect changes not insitgated by the ebd
user before.

Many thanks,

Andrew Chalk

 

[Guest]

I want to have a web page that reports the real-time "status" of an
application. It must be updated with changes in status, which may
occur as frequently as once a second. What is the best way to model
this in ASP? I haven't dealt with web pages that reflect changes not
insitgated by the ebd user before.

Take a look at:

Client Side Callbacks (ASP.NET 2.0 - works in IE only)
AJAX (Multi-Browser)
Javascript Remoting (Multi-Browser... older technology)
Dart Live Controls (Commercial Product)

However, you'll need to know some basic Javascript to do this sort of
thing.

 

[Andrew Chalk]

Thanks for the fast response, Stan.

Does your first suggestion work in ASP.NET v1.1? Are the improvements in
v2.0, in regard to this problem, huge? I.e. I might think of moving my
fledgling application up to 2.0 on account of this?

Many thanks

 

[Bruce Barker]

the only way to do this with a browser is thru polling. the simplest
solution is an iframe with a meta refresh tag.

-- bruce (sqlwork.com)

 

[Guest]

Thanks for the fast response, Stan.

Does your first suggestion work in ASP.NET v1.1? Are the improvements in
v2.0, in regard to this problem, huge? I.e. I might think of moving my
fledgling application up to 2.0 on account of this?

Client-Side CallBacks are built into ASP.NET 2.0, but they only work with
IE.

The rest of the technologies I quoted work for 1.1 or 2.0.

 

[Andrew Chalk]

Thanks. One more. Can you refer me to any tutorial/example URLs on
Javascript remoting?

Many thanks,

Andrew

 

[Guest]

Thanks. One more. Can you refer me to any tutorial/example URLs on
Javascript remoting?

Sure, here is the one I use:

http://www.thycotic.com

It used to be called Javascript Remoting, but the author has sinced renamed
it to AJAX Remote Scripting (I guess everyone is jumping on the AJAX
bandwagon) : )

Thycotic Software's AJAX client is based upon AshleyIT's Javascript
Remoting - which I think was the precursor to AJAX:

http://www.ashleyIT.com