Developing in PowerBuilder

John Olson

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Top Stories by John Olson

Last year, after migrating a client's application from PFC 5.0.02 to 6.5, then applying some enhancements to take advantage of new features, the program began giving the following PFC error message: "For certain functionality the PFC DataStore requires a reference to its parent window. One of these cases has been encountered. To let the DataStore know who its parent window is, call the of_SetParentWindow() function after the DataStore creation." At first I was disturbed that the PFC developers had coupled the DataStore to a parent object. And worse, not only a parent object, but a window object. This would mean that every DataStore had to be associated with a window. I assumed I'd be forced to use my frame window as a parent for all the "free range" DataStores in my application. After analyzing the PFC code changes, I realized that the DataStore requires a parent w... (more)

The Evolution Continues?

Another TechWave issue? You bet! In addition to our content changing to flow with the currents of technology, our schedule is also changing. We've been moving up the schedule each month with the goal of getting on the magazine racks by the first of the month rather than the middle, which has been the case for quite some time. The July issue was going to be the TechWave issue because we hadn't anticipated having the August issue ready by July 30. After getting July out earlier than expected, we went full speed ahead on this issue and I'm now proud to say we're back on schedule. Bo... (more)

A Heads-Up on TechWave

Once again Sybase's annual conference is quickly approaching. TechWave 2000 will be held at the location most popular among past attendees, Disney World's Swan and Dolphin hotels, from July 30 through August 3. Following the precedent set last year, this year's TechWave will cover all of Sybase's products rather than just the development tools, which was the standard until last year. The theme of this year's conference, "e-nabling your future," is reflected in a heavy Web development/e-commerce emphasis in the sessions being offered. Certainly that's where the excitement is in t... (more)

PowerBuilder and TechWave 2002

For Sybase TechWave 2002 at the San Diego Convention Center, the PowerBuilder team has been getting ready to show off some of the next-generation capabilities currently under development for PowerBuilder 9.0. They've been busy developing Web, distributed, and client/server capabilities that will further your development needs. These new features are an indication of the brighter future that's in store for PowerBuilder as we move forward with its evolution. If you're at TechWave, be sure to swing by the PowerBuilder booth or Technology Boardwalk area in the exhibition hall to see ... (more)

Shifting Sands

Recently I was contemplating a situation at one of my company's projects and a parable that Jesus told came to mind. The parable goes like this. There are two men, one wise and one foolish. The wise man carefully chose a rock to build his house upon and the foolish man chose to build his upon the sand. When the rain fell, the floods came, and the wind blew, the wise man's house stood firm because it was built upon the rock. The foolish man's house, built on an unstable foundation, fell and "great was its fall." Details about the structure aren't told though it's plain that the f... (more)