n a previous DevX article, you saw the basic process for using the LinqDataSource control to retrieve and display data. That article discussed functionality such as passing parameters to a
The Semantic Web is a vision, an idea, a base-set of technologies. It’s not something Dad picks up at the computer store. It’s not something the press understands very well. It’s certainly
ften when developing reports in SQL Server Reporting Services (SSRS), mixing summary (or grouped) data with transactional detail becomes a requirement. Show a sales manager how her top products or
A quick way to empty a folder and all its subfolders?while keeping your directory structure intact ?is to run the DOS command DEL with additional arguments. For example, the DEL
To clone an XML document at runtime, use the StAX XMLEventReader and XMLEventWriter classes like this: //AirWings_order.xml – the original XML in this example//AirWings_order_clone.xml – the clone of AirWings_order.xmlimport javax.xml.stream.*;import
C# seems to fail in an advanced use of polymorphism, as demonstrated by the following code: class AReturn {}class BReturn : AReturn {}class A{ public virtual AReturn GetReturn() {…}}class B{
hile a “process” is the way that operating systems compartmentalize running applications from each other, a “thread” is a path of execution?the basic unit to which an operating system allocates
indowMover is a little project originally created for a study that involved tracking the gaze of subjects when presented with various images. The study used a special eye-tracker device that
ave you ever used a multi-user system and found yourself wondering, “How did this get changed?” or, “Who created this and why?” Helping your users track the system changes and
’ve been doing mobile software development of one sort or another for time out of mind. Some of the first serious programs I wrote were for an HP-41CX calculator for
oftware engineering is all about choices. Choices have to be weighed: performance vs. scalability, complexity vs. flexibility, pros vs. cons, and good vs. poor design. In mobile application development, we
hen choosing the technology and target platform for your mobile project or application, you will find several possibilities. There are several kinds of mobile phone platforms available and most have
his article walks through creating a Java mobile application for a J2ME-enabled mobile camera device. While it does not cover all of the neccesary aspects in depth, it does describe
ven prior to Google’s splashy announcement about Android late last year, rumors were swirling about the so-called “gPhone.” Now that programmers have had several months to experiment with early releases
n recent years, the mobile application platform has gained a lot of interest among enterprise developers. With so many mobile platforms available, customers aren’t lacking choices. However, at the forefront
any people no longer even own a desktop; instead they love laptops, whether entry-level or expensive mobile workstations, and work on them exclusively. But laptops are too heavy to carry
n this article, I’ll introduce you to my best friend in SharePoint land, Stsadm.exe. No, this article is not a reference on Stsadm, neither is it an introduction to SharePoint.
Here’s the average developer’s newest dilemma: Intel and other CPU manufacturers have moved full steam ahead into creating multi-core chips to speed up computing. These chips increase processing speed not
You have to be truly geeky to get it, but do you know what the inside joke is with the proposed C++ 0x standard? Simply that it has been labeled
atrix components are great for visualizing data that you might normally export to Excel, or in a Pivot Table (year-over-year analysis is a good example). But if an analyst wants
llowing developers to leverage distributed computing resources has long been a goal of emerging technologies, including most recently RPC, CORBA, and RMI. However, these distributed computing technologies require considerable initial
here are many common problems that occur when corporations expand beyond their initial ontologies and start to build multiple ontologies that must remain consistent. Here is a list of the
penID is a service, framework, and protocol that is revolutionizing the realm of user authentication and identity services. Started in 2004 by Brad Fitzpatrick, OpenID is now a mature framework
corecards, test results, report cards, summaries?nearly everyone wants to skip past the details and see the bottom line; managers evaluate professional efforts based on performance. Microsoft’s Business Intelligence tools provide
s customers start to migrate from their existing SharePoint Portal Server 2003 (SPS2003) installations to the new version of SharePoint—Microsoft Office SharePoint Server 2007 (MOSS 2007)—one of the critical and
nother C++0x feature is going to simplify the way you write C++ code. Instead of tediously writing the type of a variable when you declare it, a C++0x compiler will
ne of the largest changes in SQL Server 2008 Reporting Services (SSRS) is that it no longer relies on IIS. Due mostly to feedback from end users on security (most
eople communicate with computers on two different levels. On the upper level you see a very flexible system of windows: you can move them, resize, overlap, or put side by
Use the following script to select a particular number of rows after a certain row in MySQL: SELECT * FROM tblDummy LIMIT 15, 30 This script returns the first 30
The following code may seem strange at first sight: class Base{private: virtual void f() = 0;}; How can a pure virtual function be private? Will the derived class be able