The following article is an excerpt from Rik's upcoming book, ‘Mobile
Application Development using PowerBuilder and Appeon'
I am here to tell you it's true. You can write iPad applications in
PowerBuilder. I'm sure that you are waiting for the other shoe to drop but
ladies and gentlemen, there is no other shoe. It is simply the truth. You can
write iPad applications in PowerBuilder.
Those of you who have iPads, have you ever seen an MDI application running on
an iPad? No? Neither had I. That is until I took a PowerBuilder application
and, using Appeon, deployed to my iPad and ran the app.
I guess the only real catch is that the product is in Beta test and won't be
available to the general public until spring 2013. Still, it's going to be
well worth the wait.
I have a first round beta version of the product and have to admit, this is a
solid product. So far I've see... (more)
Have you ever seen a form that has its own microhelp that changes when a
field gets focus? I'm sure you have. You might see a window and at the bottom
of the window is a line that says, "OPTIONAL - Enter the employee birth
date," when a field is entered. We are going to create a simple automated
solution that will allow you to carry the microhelp along in the DataWindow.
Take a look at Figure 1. It's a freeform DataWindow with a SQL data source. I
chose the Employee table from the sample database that comes with
PowerBuilder. I didn't do anything special to it. My goal here is to ... (more)
I'm considering changing my emphasis in my column. Since speaking with some
people at Sybase I am convinced that PowerBuilder is poised for a mighty
comeback. The fact is that still today PowerBuilder is by far the most
productive development tool available. It eclipses all the rest. An
experienced PowerBuilder programmer is demonstrably more productive and can
finish tasks faster than C# or even VB.NET.
So why is .NET used by more companies?
Mine would just be a guess and in fact, the answer is irrelevant. I'm here to
tell you that Sybase is making an obvious push to regain some... (more)
Normally I try to write applications on the DataWindow or Appeon but every
now and then I get a question that makes me sit back and say, "Huh?"
In this case the question concerns the PostOpen event. I've seen that event
named different things: ue_post_open, postOpen, post_open, ue_postOpen, etc.
It has, as far as I can see, always had post and open in the name of the
event. Further, just about every framework that I've ever seen has had that
event in the base window.
The question that I was asked was, "Why is that event there?"
The programmer wanted to know why there was code in t... (more)
This article describes how to create a grid presentation window that allows
sorting by clicking on the column header.
To begin we need to create a grid DataWindow. I'm selecting just a few
columns from the employee table. Here is my sql for the DataWindow in Figure
Once we have created it I get the DataWindow painter shown in Figure 2.
There are several changes that we need to make. Let's change the status
column so it's no longer a set of radio buttons. This is a read-only screen
so let's remove the status and add a computed field.
To do this let's remove the Status column ... (more)