PowerBuilder 12.5 introduced a number of significant enhancements to web
services support, both for creation and consumption. In particular, the
following were introduced as new features in PowerBuilder.NET:
WCF client proxy WCF service target REST client proxy
We're going to look at what those new features provide and how to use them.
We're also going to look at how we can package some of that functionality so
that it can be used from PowerBuilder Classic applications as well.
Windows Communication Foundation (WCF)
First though, some background. When support for a web service client was
first introduced in PowerBuilder 9, it was done based on an open source
library called EasySOAP. There were some limitations with that
implementation, primarily because the EasySOAP library only supported SOAP
1.1, was limited to XML over HTTP transport, and provided no support for
What we needed to do was implement spell checking in the rich edit fields in
our application (see Figures 1 and 2). To do that, we got a license for the
Sentry Spelling Checker Engine from Wintertree Software
(www.wintertree-software.com). The utility is easily implemented and works
quite well on standard Rich Edit controls.
However, the PowerBuilder Rich Edit control is an OEM version of an old
third-party control that was popular before Microsoft introduced its Rich
Edit control to the common controls. As a result, the messages and functions
it supports are completely differen... (more)
What do you want to see in PowerBuilder 12?
That's not just my question for you this month, it's also Sybase's question
for you as well. Two things demonstrate that. The first is the recent
invitation to participate in a survey by Sue Dunnell, PowerBuilder's product
manager, so PowerBuilder users could "provide some feedback to us as we plan
for the next major release of PowerBuilder." The survey may still be
assessable by the time you read this at
The second is a series of posts by Dave Fish, PowerBuilder engineering
evangelist, in... (more)
There's been a lot of discussion since Microsoft's BUILD conference on the
fate of Silverlight. (Something that is an issue for us because Sybase was
originally looking at supporting it for web app development in PowerBuilder
15.) Contrary to what a number of the pundits and would-be pundits have said,
I don't think it's quite accurate to say that Silverlight is dead in Windows
8. I think it's more accurate to say it's evolved.
As background for those who haven't been following this closely, Microsoft
announced that the Windows 8 operating system would support two kinds of
Read an interesting article about the .NET Developer Association user group
in Redmond, Washington. You would think that the user group in Microsoft's
backyard (the meetings are held at Microsoft's offices) wouldn't have any
problems lining up guest speakers and drawing a crowd. Well, it looks like
they do because they've had to cancel several recent meetings and have
proposed taking a six-month break to try to determine how to revitalize the
It had me wondering why such a group would have difficulty holding meetings.
Of course, the issue may be specific to that partic... (more)