In .NET framework 4.5 you can write asynchronous file IO operations much easier using the Async methods that are provided along with the IO base class libraries. Read this article to explore more about it.
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If you are developer working on applications targeting multiple platforms you might have to create duplicates of underlying class libraries targeting the specific platforms, even if they contain the same functionality, logics or algorithms. In .NET framework 4.5 RC, the Portable Class Library has been introduced to solve exactly that problem.
Thread Synchronization Using Reset Events in .NET Framework
Reset events are the wait handles that help synchronize threads in the middle of some asynchronous threading operations where multiple threads are executing simultaneously. V.N.S Arun examines this often confusing .NET framework topic.
Unobtrusive jQuery Validation Using MVC3 and Razor
Sharpen your form validation skills using unobtrusive validation in MVC3 and Razor.
Creating and Using a jQuery Plug-in in ASP.NET Web Forms
Create a custom plug-in to reuse your jQuery code across web pages.
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Laura Kihlken demonstrates a few tips that can help you improve your .NET Framework code.
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MFC Integration with the Windows Transactional File System (TxF)
The Transactional File System (TxF), which allows access to an NTFS file system to be conducted in a transacted manner through extensions to the Windows SDK API. MFC 10, has been extended to support TxF and related technologies. This support allows existing MFC applications to be easily extended to support kernel transactions.
.NET Framework: Collections and Generics
The original release of the .NET Framework included collections as .NET was introduced to the Microsoft programming world. The .NET Framework 2.0 introduced generics to complement the System.Collections namespace and provide a more efficient and well performing option. Read on to learn more...

Setting Dual Monitor Resolution with VB.NET 2012
Hannes du Preez shows you how to create a little program in VB.NET that can change the resolution on dual monitors.

SOLID Principles in C# - An Overview
SOLID principles form the base for writing good and clean object oriented code in C#. Learn about the S.O.L.I.D principles and explore C# coding samples for each.