(Irina Medvinskaya) SortedLists come in handy when developers need to maintain a collection of objects that is sorted every time an item is added or removed. In this tip, I look at a way of implementing and utilizing SortedLists in VB.NET.

(Serdar Yegulalp) Much buzz has circulated lately about “two-factor authentication,” the technology that allegedly provides better security than just relying on a single factor such as a password or an ID card alone. Two-factor authentication (2FA) uses multiple elements, physical and otherwise, to

(Nidal Arabi) Sometimes you may be asked to create a DataGrid in ASP.NET with multiple radio buttons that can be selected by each row. For example, a user may ask for the option to reject, accept or cancel a product from a list of received products. Take a look at Figure 1.

(Andrew K. Burger) As data warehousing continues to take hold as a powerful tool of modern business, developers are hard at work trying to build applications that will move the technology to the next level. Part 1 of this three-part series looks at how some developers are attempting to fuse two see

(George Schlossnagle) PHP has no native support for threads, which makes it difficult for developers coming from thread-oriented languages such as Java to write programs that must accomplish multiple tasks simultaneously. All is not lost, though: PHP supports traditional Unix multitasking by allowin

(Matt Nicholson) For the end user, the changes that will come with 2007 Microsoft Office System may seem limited to a bright new user interface and some useful new features. However, this new version offers the potential to transform the working life of anyone involved in implementing a project or f

(Bryan Sullivan and Billy Hoffman) Conscientious developers often want to help the end user when an application error occurs by creating a message to be displayed that contains detailed information. However, if developers are overly helpful with their error handling approach, they can wind up giving

(Sachin A. Kadam) Data Mining can be defined as “The nontrivial extraction of implicit, previously unknown, and potentially useful information from data” and “The science of extracting useful information from large data sets or databases”. Although it is usually used in relation to analysis of data,

(Scott Mitchell) In .NET applications, an illegal operation – an invalid cast, attempting to reference a null value, trying to connect to a database that’s been taken offline, and so on – raises an exception. Exceptions can be caught and handled directly in code through the use of Try / Catch blocks

(Andrew K. Burger) Since the technology of data warehousing has risen to become common currency, it has been at the epicenter of leading-edge advances in database, data analysis and decision support systems theory and practice — and for good reason.