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From the Editor-in-Chief of PowerBuilder Developer's Journal

Bruce Armstrong

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Top Stories by Bruce Armstrong

If you're familiar with the Database Binary / Text Large Object column type in PowerBuilder Classic (see Figure 1), you know it's a way of storing blob data associated with an OLE Automation application (Paint, Microsoft Word, Microsoft Excel) and then displaying it as part of a DataWindow. There were some limitations with the Database Binary / Text Large Object. It required the end user to have the application that was used to add the object to the database in order to view the data. It often didn't display the data well within the DataWindow. And it wrapped the data stored in the database with an OLE wrapper, making it difficult to deal with the data outside of the OLE Automation application used to store it. To address those issues, a new column type, called the TableBlob column, has been added to the WPF DataWindow. Like the Database Binary / Text Large Object ... (more)

Say Hello to PowerBuilder 12.5!

By the time you read this, PowerBuilder 12.5 should be released. Like several ".5" releases before it (i.e., 6.5, 10.5 and 11.5), this release is a major release with a number of significant new features. We'll have a number of individual articles in PBDJ that will dive into these new features in greater detail. Given the editorial lead time, I wouldn't be surprised if you've even read a few by the time you read this! For now though, I'd like to give a brief overview of what you'll see in this new version. PowerBuilder Classic Just to show that you haven't been ignored if you're s... (more)

Creation and Consumption of Web Services with PowerBuilder

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... (more)

DataWindow.NET Pet Shop

In the early days of Java, a sample application called Java Pet Store was introduced as a "blueprint and guideline" for Java development. A few years later when Microsoft introduced .NET, they also provided a similar sample application to demonstrate preferred methods of coding for .NET called .NET Pet Shop. That has subsequently resulted in a bit of warfare as the two camps attempted to demonstrate why their implementation was a better, higher-performance implementation. To provide a sample of using DataWindow.NET, I took a look at the .NET Pet Shop with an eye toward demonstra... (more)

DataWindow.NET How To: Data Entry Form

Last month we looked at Microsoft's .NET Pet Shop sample application and saw how DataWindow.NET technology could be used in the data access layer of an ASP.NET-based application to reduce the its complexity and increase developer productivity. This month we'll look at another Microsoft sample application to see what benefits DataWindow.NET technology can provide when used for data presentation and data access in a Windows Forms (WinForms) application. To fully appreciate how much DataWindow.NET simplifies the development of database applications in Windows Forms, you'll need the ... (more)