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Vol: 2 Iss: 8

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For many developers there comes a time when you think your options are limited. You can 'risk' a completely dynamic application or use it as sparingly as possible, thus limiting your capabilities.
Anyone who's needed JavaScript validation for his or her forms knows how easy it is to use ColdFusion's CFFORM tag. It's a quick and easy way to ensure that the form is filled out properly. However, CFFORM can be as limited as it is useful (see Figure 1).
Developers have been working for some time to improve the way ColdFusion is used to develop Web sites. CF is a powerful presentation language for creating markup-based documents (HTML, WML and XML) with connectivity into component-based back-end systems such as C++, Java, COM/CORBA and...
One of the most common requests made of developers is that they create a password-protected area on a site, be it for registered users or administrative functions.
Deleting Data with ColdFusion Unlike adding and updating data, ColdFusion provides no efficient way to delete data. DELETE is always a dangerous operation, and ColdFusion developers didn't want to make it too easy to get rid of the wrong data.
During a recent intranet project, I encountered the need for live reports of all currently open user sessions within an application.
We all know that locking is important. Most of us even understand why locks are needed. But exactly where to use a lock, which lock type to use and what code to put within the lock remains confusing at best.
This month I've taken the liberty of assembling a small collection of unrelated ideas that I think you might enjoy as ColdFusion appetizers.
WDDX exists to allow us to share data. With it your ColdFusion application can 'talk' to someone else's Perl script, and it in turn can talk to someone else's Microsoft Word document. Quite a powerful concept, but I have to admit I haven't had a lot of opportunities to use it.
Living on Internet time proves more and more interesting every day. Sometimes it seems the online world is moving so fast that were I to sleep late one day, I might wake up and find that I'd missed an entire revolution - or at the very least another 'correction' to the stock market bef...
There's a growing buzz around the world of wireless Web applications, that is, Web sites accessible to phones and other wireless devices. You may have read that in ColdFusion 4.5 Allaire added support for something called WAP (Wireless Access Protocol).


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