Monthly Archives: January 2007

Problems caused by concurrent asynchronous calls to web services

.NET, ASP.NET, Technical stuff, WPF
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This post was imported from my old blog and had 1 comment which is included as a screenshot at the end of this post.

What’s COMET?

When an Internet Application needs to be updated regularly, the only possible choice is to use polling. The HTTP protocol makes it impossible to have the server “push” data to the client. The faster the client needs to be updated, the faster the poll must be. Of course, there are limits, for example due to the network speed, the load, etc.
 
A possible alternative is known under the name COMET. (Note: COMET is usually used as an alternative to AJAX, and AJAX implies the use of JavaScript (the J in AJAX), running in a web browser. This article, however, uses a WPF XBAP application as client.)
COMET supposes the following scenario:

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JavaScript: CSS length manipulation and conversion

JavaScript, Technical stuff, Website
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CssLength class: In the course of improving my DHTML PositionedNode, one thing I really wanted is to be able to handle other units than just pixels. In order to do that, some conversions are needed. To make this easier, I developed a helper class named CssLength.

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L’Abbé Pierre is dead…

Personal
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I was about to write an article about object oriented inheritance in JavaScript yesterday when I heard of the death of the Abbé Pierre. After that, it was kind of hard to talk about prototypes and base classes.

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WPF scalability wishes / MIX07

.NET, Technical stuff, WPF
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This post was imported from my old blog and had 5 comments which are included as a screenshot at the end of this post.

I received today the confirmation to my registration for MIX07 in Las Vegas. I am very excited to go and attend this event again. Last year’s MIX06 has been a defining event for me, followed by intensive work to introduce WPF into my firm. So far this activity was a success, and I am very excited to see the “real” development activities starting (as oppposed to prototyping, which we did most of last year).

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