.NET

Source Code for the .NET Framework Libraries

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Scott Guthrie announced today that Microsoft will release (under the Microsoft Reference License) the source code for the .NET Framework libraries, including: .NET Base Class Libraries (System, System.IO, System.Collections, System.Configuration, System.Threading, System.Net, System.Security, System.Runtime, System.Text, etc) ASP.NET (System.Web) Windows Forms (System.Windows.Forms) ADO.NET (System.Data) XML (System.Xml) WPF (System.Windows) More than that, Visual Studio 2008 will provide … Read more

WPF tab control

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A WPF TabControl contains multiple items (TabItem), just like any tab control, and adding new tabs is quite easy. The following example shows a tab control with two tab items. However, when you try adding child controls to a TabItem you’ll notice that you can actually add one single child. The following XAML code yields … Read more

Silverlight and Moonlight

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Microsoft has released today Silverlight 1.0 for Windows and Mac, a cross paltform, cross browser plug-in for building richer web applications. You can read more about the features on Scott Guthrie’s blog or visiting the official page. Due to a partnership, with Microsoft Novell will create a 100% compatible run-time for Linux, called Moonlight. It will run … Read more

My CodeGuru Articles on LINQ

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Recently CodeGuru published the last part of my introductory series of articles on LINQ. Here are the links to the articles: Introduction to LINQ, part 1: LINQ to objects Introduction to LINQ, part 2: LINQ to XML Introduction to LINQ, part 3: LINQ to SQL I hope you’ll enjoy and benefit from the reading.

Performance of LINQ Queries

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When I delivered the LINQ presentation at the RONUA meeting in April, I was asked how does LINQ perform on big data sets. To answer that I decided to test LINQ to XML against a 100+MB file. I decided to extract three different sets of data from this XML file: 1 set representing about 0.5MB … Read more

LINQ to SQL

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LINQ to SQL is an API that allows querying relational databases. The samples in this post are based on the concepts of: Entity classes (which are instances of Entity Types). Such a class is a regular .NET class that is decorated with the attribute Table and its properties and fields with the attribute Column DataContext, … Read more

LINQ to XML

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LINQ offers an API called LINQ to XML, formally known as XLinq, that provides support for working with XML. This API resides in the System.Xml.Linq namespace, and you need to add a reference to the assembly with the same name to be able to use it. If you installed the Orcas March CTP bits, the … Read more

yield keyword and lazy evaluation in C#

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yield is a new contextual keyword introduced to C# 2.0, vital for lazy evaluation and the performance of queries in LINQ. Being a contextual keyword means that yield can be used as a variable name in C# without any problem. When put before return it becomes a keyword. yield allows one enumerable class to be … Read more

LINQ: declarative and functional syntax

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In my last post about LINQ I shown you an example about how to use the language integrated query to select information about directories. In this post I’ll get more into the syntax and show you something about the functional querying style. My examples will focus on displaying information about UEFA Champions Leage winners. Thus, … Read more