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Always Be Learning
By:
Rod Paddock
Last updated: Saturday, December 18, 2021
Published in: CODE Magazine: 2011 - March/April
Mar/April Editorial by Rod Paddock
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COM Interop Over Easy
By:
Boyd, Craig
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
This article highlights some of the new toolkits and components coming out of Redmond for COM Interop.The Interop Forms Toolkit, the Interop UserControl Prototype, and the techniques used in Sedna’s NET4COM allow Visual FoxPro developers to incorporate .NET components into their applications.
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Integrating VFP into VSTS Team Projects
By:
John Miller
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
Whenever more than one person works on a software development project, introducing some process to coordinate the activities of the team members is a priority.The larger the team, the harder it is to manage. To meet this need, Microsoft created Visual Studio Team System (VSTS). VSTS is a state-of-the-art Software Development Life Cycle tool suite that is tightly integrated into Microsoft Visual Studio 2005. VSTS provides deep support for .NET projects; however, whenever a software solution includes components developed on a platform other than .NET, such as Microsoft Visual FoxPro (VFP), VSTS loses some of its value because the projects aren’t integrated into VSTS. Leveraging the extensibility features of VSTS and VFP, this article will help you integrate VFP projects into VSTS team projects enabling your team to apply a comprehensive process to your entire software development effort.
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Leveraging Sedna Reporting
By:
Durban, Bo (Moxie Data, Inc.)
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
Sedna’s reporting features have made both the designing and rendering of a VFP report more extensible.In this article you’ll learn about a few of the new rendering objects that Sedna includes such as rotation and hyperlinks. You will also learn how to create your own custom rendering object and how to include a custom Builder interface element for it in the Report Designer.
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The Baker’s Dozen: 13 Productivity Tips for Moving from VFP to .NET
By:
Kevin Goff
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
When Visual FoxPro developers take the plunge to learn .NET, the most common reaction is, “I could do such-and-such, this-and-that in VFP-how can I do it in .NET?” This special edition of The Baker’s Dozen will offer solutions for many of the typical challenges that VFP developers face when tackling .NET. I’ll start by covering .NET solution and project structures and an overview of the .NET Framework, and I’ll spend time showing how to use .NET reflection to do some of the things that VFP developers could accomplish with macro-expansion. Then I’ll cover different .NET features such as Generics, ASP.NET 2.0, and I’ll show how to create a reusable data access component. Finally, I’ll build the architecture for a set of reusable data maintenance classes in .NET.
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The Missing LINQ
By:
Markus Egger
Last updated: Wednesday, August 10, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers, Markus Egger Talks Tech
Visual FoxPro’s (VFP) Data Manipulation Language (DML) is one of VFP’s most compelling features. It is also the most obvious feature VFP developers miss in .NET languages such as C# and Visual Basic. However, Language Integrated Query (LINQ), a new query language for .NET developers is a new feature in the upcoming releases of C# 3.and Visual Basic 9.0 that addresses these shortcomings.
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The My Namespace in Sedna
By:
Doug Hennig
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
New to Sedna, Visual FoxPro emulates the My namespace first introduced in Visual Basic 2005.The My namespace makes .NET Framework classes more discoverable and allows you to write less code. Sedna, the next version of Visual FoxPro (VFP), includes a My namespace as well, for the same reasons. In this article, I’ll look at how Sedna implements My.
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The New and Improved Data Explorer
By:
Schummer, Rick
Last updated: Wednesday, February 20, 2019
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
The Data Explorer introduced in VFP 9.0 allows developers to work with different types of data from diverse data sources independent of specific projects.The Sedna update extends this already powerful and productive tool.
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Upsizing Simplified
By:
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
The Sedna Upsizing Wizard is leaps and bounds better than the version previously shipped by Microsoft in any version of Visual FoxPro.The Fox Team listened to the complaints from the Fox Community over the years about the wizard being deficient, with some fatal flaws, and recognized how it became outdated with the advent of SQL Server 2005. Sedna attempts to correct all of this and more.
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Visual FoxPro Web Services Revisited
By:
Rick Strahl
Last updated: Wednesday, August 10, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
Web services with Visual FoxPro (VFP) have never been easy. The most common Web service tool for FoxPro is the SOAP Toolkit, which has been discontinued and which had a host of problems when dealing with complex types passed over Web Services. In this article I’ll show how you can leverage the powerful Web service features of .NET and the new Windows Communication Foundation in your FoxPro application through COM Interop.
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Welcome to the Future of Deployment
By:
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
You can use ClickOnce to revolutionize how you install and update Visual FoxPro (VFP) applications. A dream come true, ClickOnce can put a stop to many of the deployment nightmares associated with distributing applications.
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Welcome!
By:
Yair Griver
Last updated: Tuesday, August 9, 2022
Published in: CODE Focus Magazine: 2007 - Vol. 4 - Issue 1 - Sedna: Beyond Visual FoxPro 9, VFP Conversion Papers
Welcome to the third Fox Focus issue!As I write this (publishing deadlines being what they are) I’ve recently returned from a trip to Europe where I spoke at three different Visual FoxPro conferences in Germany, Amsterdam, and France. I showed off many of the new features coming in Sedna as well as a number of the enhancements being created by the community using the awesome extensibility built into VFP.
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.NET Data Access with LINQ: A VFP Perspective
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech, LINQExperts.com Papers
For Visual FoxPro developers, data access represents the daily bread and butter. Data access is a core feature of Visual FoxPro (which after all is an xBase descendent) and nobody gives much thought to the ability to run a select-statement right within a VFP program.Most languages however (including .NET languages such as C# or Visual Basic .NET) are not as data centric and thus do not support data manipulation as a core language concept. At least until now. But all this is about to change with the introduction of LINQ.
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LINQ
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2006 - March/April, Markus Egger Talks Tech, VFP Conversion Papers
At PDC 2005, Microsoft introduced brand new technology known as LINQ, which stands for “Language Integrated Query.”The feature-set hiding behind this acronym is truly mind-boggling and worthy of a lot of attention. In short, LINQ introduces a query language similar to SQL Server’s T-SQL, in C# and VB.NET. Imagine that you could issue something like a “select * from customers” statement within C# or VB.NET. This sounds somewhat intriguing, but it doesn’t begin to communicate the power of LINQ.
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COM Interop: Making .NET and VFP Talk to Each Other
By:
Claudio Lassala
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers, Markus Egger Talks Tech
Many companies have been relying on COM components in the last couple of years. That includes Microsoft.Using COM components made it possible for different programming languages to reuse logic between them, by agreeing to a standard defined by the COM specification.
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Controls, Events, Commands, and More
By:
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
Microsoft Visual FoxPro 9 is here and it brings lots of new features.This entire issue of CoDe is dedicated to Visual FoxPro 9, providing details and scenarios on how you can use the new features and enhancements. In this article, I will discuss some of the new controls, events, and commands, and a little more.
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Extending the Visual FoxPro 9 Reporting System
By:
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
Among the new and improved features in Microsoft Visual FoxPro 9, you'll find the ability to extend the behavior of the reporting system when running reports.In this article, you'll learn about Visual FoxPro 9's report listener concept, how it receives events as a report runs, and how you can create your own listeners to provide different types of output in addition to print and preview.
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The Visual FoxPro 9 Report Writer
By:
Pountney, Cathy (Memorial Business Systems)
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
Microsoft has significantly improved the Report Writer in Visual FoxPro 9.They also recognized the significant investment in existing FRX-based reports and designed the new Visual FoxPro 9 Report Writer to be compatible with previous versions of Visual FoxPro Reports. This makes it a great blend of the old and the new. In this article, you'll learn about some of the new features, including the new reusable data environments, report protection, and several user interface enhancements. You'll also learn about enhancements to layout objects and data groups. Finally, you'll learn about one of the best improvements to the Visual FoxPro 9 Report Writer: multiple detail bands.
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Visual FoxPro 9 IDE Enhancements
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
Visual FoxPro 9 includes a number of IDE enhancements that make its already rich development environment considerably richer.
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Walking on Cloud 9.0 of Visual FoxPro
By:
VFP TEAM MEMBERS,
Ken Levy
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
The Visual FoxPro Team at Microsoft is enthused to announce Visual FoxPro 9.0.We'd like to include some details about Visual FoxPro 9.0 as an overview to the more detailed articles in this special issue CoDe Focus issue devoted to Visual FoxPro 9.0.
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What's New with Data in Visual FoxPro 9?
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2004 - Vol. 2 - Issue 1 - Visual FoxPro 9.0, VFP Conversion Papers
The Microsoft Visual FoxPro team has a great reputation for responding to community requests and the next version of is no exception.Most evident in several changes to the data engine, Visual FoxPro 9 includes many enhancements for data access and database application development.
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Collections are Cool!
By:
Last updated: Wednesday, February 20, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Collections are a common way to store multiple instances of things.For example, a TreeView control has a Nodes collection and Microsoft Word has a Documents collection. Until recently, Visual FoxPro developers wanting to use collections often created their own classes that were nothing more than fancy wrappers for arrays. However, in addition to being a lot of code to write, home-built collections don't support the FOR EACH syntax, which is especially awkward when they're exposed in COM servers. Visual FoxPro 8.0 solves this problem by providing a true Collection base class.
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COM Interop and Strong Typing
By:
Last updated: Wednesday, February 20, 2019
Published in: VFP Conversion Papers
The basics of using a VFP COM component from .NET are relatively simple, but the more objects we use, the harder it gets. In order to make one's life easier from the .NET side, the component must be built a certain way from the VFP side. For instance, it's very common to create objects on-the-fly in VFP, given the ease of doing so. However, these objects cannot be consumed from .NET without writing extra code. This article covers some aspects of how the developer can improve the COM Interop experience when consuming VFP COM components from .NET.
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Compare Constructors and Destructors in VFP and .NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Unlike VFP, .NET forces you to give up control over the destruction of objects, but you get some benefits in return.
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Compare Events and Delegates in VFP and .NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Events play a larger role in .NET than they do in Visual FoxPro. Learn how events work in the .NET world to write powerful applications.
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Compare Inheritance in VFP and VS.NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
If you're starting to work with Visual Studio .NET, you'll find you have a head start when it comes to inheritance.Here are some of the differences.
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Compare Interfaces and Polymorphism in VFP and VS.NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Polymorphism is the use of multiple objects with the same methods that do different things.Interfaces let you create flexible architecture in your application. Find out how these concepts differ in Visual FoxPro and Visual Studio .NET.
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Compare Methods, Properties, and Fields in VS.NET and VFP
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Discover the differences and similarities between Visual Studio .NET and Visual FoxPro.
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Compare Static Members in VFP and .NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
You're familiar with instance members in Visual FoxPro. Now find out how you can benefit from static members in Visual Studio .NET.
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Compare Variables in VFP and VS.NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Learn about different types of variables, and what it means to perform boxing, unboxing, and casting operations.
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Compare Visual Inheritance in VFP and .NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Find out how your knowledge of visual inheritance in Visual FoxPro can help you take advantage of Visual Studio .NET's slightly different model.
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Creating a Statusbar Control with VFP 8
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Visual FoxPro 8 offers many new features and opportunities to make life easier.In this article Rick describes how to build a native VFP-based status bar that fixes some of the problems found in the Windows Common Control OCX version (MSCOMCTL.OCX) that ships with VFP and other development tools. This article introduces several new VFP 8 features: Collections, the Empty object, AddProperty() and BindEvents(), and shows how to integrate these new features into a useful component.
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Creating Multi-threaded .NET componentsfor COM Interop with Visual FoxPro
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers
Multithreading is a powerful feature that allows you to asynchronously execute code while continuing to work or provide a responsive user interface to your application..NET makes multithreading very easy and in this installment you’ll see how to create and execute multithreaded components and communicate with them via events.Multithreading is a powerful feature that allows you to asynchronously execute code while continuing to work or provide a responsive user interface to your application..NET makes multithreading very easy and in this installment you’ll see how to create and execute multithreaded components and communicate with them via events.
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Event Binding in VFP 8
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, Markus Egger Talks Tech, VFP Conversion Papers
Visual FoxPro developers have been using an event-based methodology for a very long time.For most purposes, events are what drive the development effort. The user clicks a button, causing an event to fire, and the developer writes code to react accordingly. All of this happens very transparently and without difficulty for either party. However, from a developer's point of view, there also isn't much flexibility in this approach. But in VFP 8, event handling is changing for the better.
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Handling .NET Events in Visual FoxPro via COM Interop
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers
Last month I started a series of articles that are looking at a few advanced topics in using .NET COM Interop with Visual FoxPro. This month, I look at handling .NET events through COM Interop and briefly introduce creating and interacting with multi-threaded .NET components from your Visual FoxPro applicationsEvent Handling is an important feature both in Visual FoxPro and .NET.But both .NET COM objects and Visual FoxPro require special handling in order to deal with hooking up to COM events. In this article, Rick takes a close look at how events work in Visual FoxPro and .NET and how they can be used together across the COM Interop boundary.
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Improve Code with Enums
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
To help you understand .NET development from a Visual FoxPro perspective, this article introduces you to the concept of enums and shows you how to use them to improve code quality.
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Introducing the CursorAdapter Class
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
One of the most exciting new features of Visual FoxPro 8 is the CursorAdapter class, which provides a common interface for working with data from many different sources.Chuck takes you with him on an adventure in exploring how to use CursorAdapter to change the way you relate to data in VFP 8, whether native tables, ODBC, OLE DB, or XML.
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Member Classes Bring Flexibility
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
The new VFP 8 feature often referred to as "Member Classes" is a set of new properties and new ways to define classes that can bring much more flexibility when working with certain controls.Need to define several pages in a pageframe with different properties and settings? No problem. How about better control of grid column headers? No problem.The new VFP 8 feature often referred to as "Member Classes" is a set of new properties and new ways to define classes that can bring much more flexibility when working with certain controls.Need to define several pages in a pageframe with different properties and settings? No problem. How about better control of grid column headers? No problem.
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Modern Application Development: Visual FoxPro and .NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
Markus Egger discusses the current state of development (2004) and how Visual Studio .NET and Visual FoxPro fit in.
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My Favorite Feature
By:
Granor, Tamar
Last updated: Wednesday, February 20, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
When you first begin using the new Visual FoxPro 8, you are sure to find useful new features that will make your development tasks easier.Several members of the Visual FoxPro developer community who have already worked with VFP 8 tell us their opinions of the best and most useful new features. Perhaps their answers will help guide you to some cool ideas you can put to work right away.
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OOP: VFP vs. VS.NET
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
And discover why and when you should use .NET.
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Operator Overloading
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
To help you understand .NET development from a VFP perspective, this article introduces you to operator overloading and shows you how to apply it for powerful programming in .NET.
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Passing objects between FoxPro and .NET COM Components
By:
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers
COM Interop between Visual FoxPro and .NET seems trivial at first, but the devil is in the details.Simple COM calls using methods and properties with simple parameters are easily accomplished. However, once you start dealing with complex objects - objects with hierarchies or specific object types required by .NET as parameters or properties, you start running into problems. This article looks at some of the issues that you need to look out for when dealing with objects in applications that call .NET COM objects from Visual FoxPro.COM Interop between Visual FoxPro and .NET seems trivial at first, but the devil is in the details.Simple COM calls using methods and properties with simple parameters are easily accomplished. However, once you start dealing with complex objects - objects with hierarchies or specific object types required by .NET as parameters or properties, you start running into problems. This article looks at some of the issues that you need to look out for when dealing with objects in applications that call .NET COM objects from Visual FoxPro.
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Structured Error Handling in VFP 8
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, Markus Egger Talks Tech, VFP Conversion Papers
With the introduction of Visual FoxPro 3.0, error handling in VFP changed substantially.Rather than using "on error" statements, "state of the art" error events became available. Now, 7 years later, more sophisticated error handling mechanisms take center stage as Visual FoxPro 8.0 introduces structured error handling.
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The State of VFP Conversions
Last updated: Wednesday, February 20, 2019
Published in: VFP Conversion Papers, Newsletters
We have been helping customers convert Visual FoxPro systems to different platforms (mainly .NET and SQL Server, but there are others) for the better part of two decades. During that time, we have provided numerous articles, presentations, and training classes. Articles range from high-level road maps to in-depth, detailed technical articles. As time has passed, VFP conversion techniques and options have evolved. With that, we feel it is time to take a look at the big picture once again.
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The VFP 8 XMLAdapter Class
By:
Gero, Cathi
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Visual FoxPro 8.0 introduces a whole new way to work with eXtensible Markup Language (XML).The XMLAdapter class works with hierarchical XML, provides an object-oriented approach to working with XML data, and leverages your familiarity with tables and fields in the way it exposes the XML contents.
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The Visual FoxPro Toolkit for .NET
By:
Leclair, Daniel
Last updated: Wednesday, August 31, 2022
Published in: CODE Magazine: 2002 - September/October, VFP Conversion Papers
Visual Studio .NET offers a rich tool set, but anyone who has ever used Visual FoxPro will soon notice that many of their favorite features are not available. However, a new set of public domain classes can add these functions to both Visual Basic .NET and C#.
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VFP 8 Feature Highlights
By:
Last updated: Wednesday, August 31, 2022
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Visual FoxPro 8 includes numerous new features that are a direct response to the requests of VFP developers.Just reading through the "What's New" section of the documentation will take you quite a while due to large quantity of additional or changed features and commands. Let's take a brief look at just a few of the exciting new capabilities that you can put to use immediately.
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VFP 8 Tips and Tricks
By:
Bae, Chin,
Mike Yeager,
Katri, Ryan
Last updated: Tuesday, February 19, 2019
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Some of the early adopters of VFP 8 have contributed tips for some of the new features of this exciting release.Check out their ideas, then jump into the product and try some of the new stuff. You'll find that there is much more than meets the eye, with hundreds of additions, changes, and improvements.
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VFP 8: A Great Tool For Data-Centric Solutions
Last updated: Wednesday, February 23, 2022
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Eric Rudder talks about VFP 8.
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VFP 8: Visual FoxPro's Biggest Update Since Version 3.0
By:
Last updated: Wednesday, February 23, 2022
Published in: CODE Focus Magazine: 2003 - Vol. 1 - Issue 1 - Visual FoxPro 8.0, VFP Conversion Papers
Ken Levy discusses VFP8.
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VFP Conversion Roadmap Whitepaper
By:
Simon Ferguson,
Last updated: Tuesday, February 19, 2019
Published in: VFP Conversion Papers, Markus Egger Talks Tech
This whitepaper discusses strategies for managers converting Visual FoxPro (VFP) applications to .NET, and lays a foundation for producing an implementation plan.
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Windows Presentation Foundation - an Introduction for VFP Developers
By:
Last updated: Tuesday, February 19, 2019
Published in: Markus Egger Talks Tech, VFP Conversion Papers
The Windows Presentation Foundation (short WPF) is coming, and it will replace all Windows UIs as we know them today.This means that no developer can ignore this technology. This article provides an introduction to WPF both from a general point of view as well as from a Visual FoxPro specific angle.
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Building a 21st Century Application
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2001 - Issue 2, Markus Egger Talks Tech
In previous issues of Component Developer Magazine, we have introduced technologies such as Queued Components, COM+ Security, Loosely Coupled Events, SQL Server 2000 and BizTalk Server.Each of these represents a fascinating myriad of possibilities. But, how do you put all of them together to build a real-life, highly reliable, 100% available distributed application?
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COM Queued Components
By:
Last updated: Wednesday, November 23, 2022
Published in: CODE Magazine: 2000 - Fall, Markus Egger Talks Tech
Automatic asynchronous messaging is an important technique for scalable, component-based applications.Microsoft provided its first asynchronous messaging mechanism in the form of Microsoft Message Queue Server (MSMQ). This technology is the basis for Queued Components, a COM+ feature that makes asynchronous messaging as simple as calling regular COM Components.
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Create Bulletproof Components with COM Security
By:
Ellen Whitney
Last updated: Thursday, November 24, 2022
Published in: CODE Magazine: 2000 - Summer, Markus Egger Talks Tech
COM+ gives the developer a way to build a flexible and powerful security system into applications without having to write a lot of custom code.This article will examine how to leverage the power of the COM+ security model.
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Creating Smart Interfaces with Smart Tags and VFP 7
By:
Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2002 - January/February, Markus Egger Talks Tech
As developers, we're used to data sitting in tables and databases.However, this is not how data exists in the real world?it's merely how developers want data to appear. Typically, data resides in documents and forms, emails and spreadsheets. Smart Tags are Microsoft's first serious attempt to utilize that kind of information and make it available to knowledge workers in a sensible fashion.
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Loosely Coupled Events With COM
By:
Last updated: Thursday, November 24, 2022
Published in: CODE Magazine: 2000 - Spring, Markus Egger Talks Tech
COM+ introduces a new way to architect and extend applications:The COM+ Event Service. This service is extremely flexible and much easier to handle and maintain than all other COM based event models we've seen so far. They are especially useful for business events that can now be published throughout the system without losing any control over business rules.
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The "Basics" of Inheritance
By:
Last updated: Thursday, December 9, 2021
Published in: CODE Magazine: 2000 - Summer, Markus Egger Talks Tech
Microsoft has recently announced that the next version of Visual Basic will support inheritance.Visual FoxPro has had inheritance for the past 5 years, since Version 3.0, and Visual C++ has always had it. This article will take a closer look at what inheritance is and what it will mean for Visual Basic 7.
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XML, XSL and HTML in Windows Applications
By:
Last updated: Wednesday, November 30, 2022
Published in: CODE Magazine: 2001 - Issue 1, Markus Egger Talks Tech
HTML and XML have made the Internet what it is today, but both technologies are not necessarily tied to the Internet.Quite the contrary! Using HTML in regular Windows applications has always been a great alternative. Paired with XML and XSL, this technique is more powerful than ever, since there are a growing number of XML sources, such as SQL Server, Web Services, and XML-enabled Business Objects.
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Office Server Quirks
By:
Last updated: Thursday, February 21, 2019
Published in: CODE Magazine: 2003 - January/February
Word, Excel and PowerPoint all use VBA, so you would think that using Automation in one should be pretty much like using Automation in another, right? In fact, they do have a lot in common. However, there are a number of subtle differences in the way the servers operate that makes writing generic code tricky.
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Understanding the Crypto API
By:
Feldstein, Alex
Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2002 - March/April
You know about the importance of securing your data.But, how do you add industrial strength security to your program? The answer is simple: use the Windows Crypto API.
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ACME Insurance - Building a .NET Application
By:
Myers, Wayne,
Cote, Aubrey T
Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2002 - January/February
Part 3, The User Interface and the Rating Web ServiceWe are finally going to get our feet wet in Visual Studio .NET and start writing some real code! In this article, we're going to focus on two areas of the ACME application. First, we will talk about the user interface and how it's implemented in ASP.NET ? along with a few problems we overcame by utilizing the powerful object-oriented features of .NET. Next, we'll write a web service in Visual Basic .NET to rate policies based on their class codes. To demonstrate that web services can be used in a variety of ways, we'll consume the web service in both .NET and Visual FoxPro 7.
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Maximizing Your Testing Results
By:
Stewart, Mike
Last updated: Wednesday, February 23, 2022
Published in: CODE Magazine: 2002 - January/February
Testing computer software is more than just randomly executing portions of the software.Professional-level testing uses industry-accepted practices to write tests that are the most likely to find bugs. This article will examine how to use a combination of several common testing methods to maximize the results of the time you spend on testing.
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Handling long Web Requests with Asynchronous Request Processing
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Last updated: Saturday, September 26, 2020
Published in: CODE Magazine: 2001 - Issue 2
Web Applications tend to be stateless, and running long requests can be problematic for Web backends. Long-running requests can tie up valuable Web server connections and resources. In this article, Rick describes one approach that can be used to handle lengthy requests. A polling mechanism and an Event manager class can be used to pass messages between a Web application and a processing server running the actual long task.
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Static Content in a Dynamic World
By:
Clarke, Lauren
Last updated: Wednesday, February 20, 2019
Published in: CODE Magazine: 2001 - Issue 2
Web applications are essentially made up of functions that map inputs (requests) to outputs (responses).This article looks at a way to store the relationship between request and response and pre-generate responses, thus reducing the resources needed fulfill requests.
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Add Speech Recognition to your Applications
By:
Tansey, David
Last updated: Friday, October 28, 2022
Published in: CODE Magazine: 2001 - Issue 1
Dragon NaturallySpeaking and its associated Developer's Suite provide everything you need for speech recognition:stable ActiveX controls, quality documentation, and end-user "hand-holding" tools for installation and configuration issues.
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Building and using a SOAP Web Service with West Wind Web Connection
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Last updated: Tuesday, February 19, 2019
Published in: CODE Magazine: 2001 - Issue 1
Imagine that you need some specific information in your application, such as a shipping rate. You now go to a special "service" search engine and look up the type of service you need over the Web.Now, imagine that you can get this information easily from the service and simply plug it directly into your application. Sound too good to be true? Believe it or not, the technologies to make this possible are available today. Web Services provide this functionality by bringing to application development the same interlinked mechanisms that have made the Web so popular for Web browsing. By sharing data over the Web in standard formats, "Web Services" is becoming the new industry buzzword. Microsoft is talking about Web Services as the second life of the Internet. Web Services will tie together applications, just as the Web Browser and URL links have tied together Web pages. "The Web At Your Service" is the new mantra. In this article, Rick discusses SOAP and Web Services, then creates a sample Web Service and integrates it into an application.
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Configuring IIS via code
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Last updated: Wednesday, February 20, 2019
Published in: CODE Magazine: 2001 - Issue 1
In this day and age, Web applications have become the norm. We've even come to the point where many development projects involve Web applications that must be installed on multiple servers.But even if you don't build vertical Web applications, it's useful to have a configuration utility that can recreate a configuration via code. This might be for backup purposes, or for high volume environments like load balancing, where multiple servers need to be configured.
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A Preview of Visual FoxPro 7.0
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Last updated: Thursday, November 24, 2022
Published in: CODE Magazine: 2000 - Fall
Before you say "Who cares, I've already seen them..." or "Who cares, I don't use Visual FoxPro...", take a quick look at this article.I think you'll discover some things that you didn't know; and if you don't currently use Visual FoxPro, you might even discover you, too, are looking forward to the next version of Fox.
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N-Tier Application Design
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Last updated: Thursday, December 9, 2021
Published in: CODE Magazine: 2000 - Summer
As applications become more complex, designing with components becomes a very important factor in the successful completion of projects.This article discusses n-tier application design, why it's important to modern application development, and shows strategies for breaking out the tiers using Visual FoxPro.
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Using XML For Messaging In Distributed Applications (Part 2)
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Last updated: Thursday, December 9, 2021
Published in: CODE Magazine: 2000 - Summer
XML is becoming the messaging standard of choice, and one of the key issues in this architecture is the conversion and transfer of data between client and server sides.In this article, Rick looks at a tool that easily converts Visual FoxPro tables and objects to and from XML, and demonstrates the concepts of XML messaging in a live e-Commerce application.
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