So customer support calls regarding an issue a client is experiencing on a periodic basis. The receive an error ‘Invalid Expression’. To make things worse they get a series of these messages popping up and eventually the application crashes. Great. So we look at the datawindow object on the application window they are having issues…
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PowerBuilder ‘Gotcha’ – Invalid Expression Error Message
PowerBuilder ‘Gotcha’ – Invalid Expression Error Message - the full story »
Software Application Design – Required Reading
If you are involved in any way with software design and programming, you really must read the paper Magic Ink, Information Software and the Graphical Interface by Bret Victor. While you are at it, check out his entire web site worrydream.com. One point of particular interest to me was the section on ‘inferring content from…
PowerBuilder Developers Conference – October 15-19, 2012
I will be presenting two sessions at this years conference in Las Vegas. Restocking the Eye Candy Store – Visual Upgrade Techniques in PowerBuilder Abstract: Changing the User Interface in a PowerBuilder application can be a labor-intensive exercise if done solely within the IDE. This presentation will offer tips to planning, testing, and executing on…
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