Most of the applications we software developers build need to interact
somehow with data from a database. The .NET Framework defined by Microsoft
provides a rich set of objects to manage database interaction; these classes
are collectively referred to as ADO.NET and the latest versions of DataWindow
.NET (which is now version 2.01).
SQL Anywhere (version 10) fits perfectly in this environment, making
development a lot easier; in addition, your applications will look good
without spending a lot of time painting the user interface. In this article
we'll look closer at exactly this kind of combination: DataWindow.NET with
Our Application: Pamalot
This project started about a year and a half ago. A nice guy with a lot of
enthusiasm entered my office and started to tell me a story about a business
he started a few months before. It was a franchising system,... (more)
The Web Services Description Language (WSDL) makes it possible for automated
code-generation tools, like PowerBuilder 9 with its Web services wizard, to
simplify building clients for existing Web services.
In my previous article "Axis" (PBDJ, Vol. 9, issue 8) we discussed the basic
steps involved in implementing a Web service using Axis, EAServer, and
PowerBuilder 8. Now we'll explore the technologies that make it easier to use
Web services that have already been deployed.
What Is WSDL?
WSDL is an XML-based language used to define Web services and describe how to
access them. For... (more)
The DropDownDataWindow (DDDW) edit style is one of PowerBuilder's outstanding
features. Yes, I know there are a lot of new and exciting capabilities in the
upcoming release of PowerBuilder, but in this article I'll try to solve some
of the current problems with the existing features that are popping up in
nearly every project I've seen.
Here I'll focus on DropDownDataWindows, including:
How to get started with DDDWs Filtering DDDWs without losing the display
value in other rows Catching the collapsing of a DDDW Trapping the cursor
keys in a DDDW Autocomplete DDDW values
Getting S... (more)
The Sybase Enterprise Portal is ideal for organizations that are looking for
a solution that allows developers to integrate existing enterprise content
and applications as well as incorporate the tools that will enable them to
access, manage, share, and understand them better.
Parts 1 and 2 of this article will take a close look at the Sybase Enterprise
Portal. I'll start by describing why you might need an enterprise portal and
then examine the evaluation version of the Sybase EP.
We'll look at: The architecture of the Sybase Enterprise Portal Installing
Enterprise Portal 5.01 C... (more)
Have you ever looked at a rainbow and wondered how all the colors got there?
Or wondered why grass looks green and your jeans blue? Well, if you sit in
front of your computer as often as I do, you might not.
However, the following problem may have occurred: you want to create a cool
window in which the data and the headers are displayed in different colors,
but you can't find the right one. If you've come across this situation
before, then this article is right for you.
What Is Light?
Let's discuss a bit of physics. If you look at a cool DVD movie, you hear
sound and see pictures... (more)