SLaks.Blog

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• Code Snippets: Removable = Tokens 2016-12-26

  Or, torturing compilers for fun and profit. I recently tweeted an interesting C# challenge: C#...
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• Common Cryptographic Pitfalls 2015-11-18

  When writing code that deals with security or cryptography, there are a number of mistakes...
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• Chains of Trust – The Root of all Security 2015-10-31

  The entire field of computer security is dedicated to verifying the source, confidentiality, or integrity...
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• The Web Authentication Arms Race – A Tale of Two Security Experts 2015-10-13

  Web authentication systems have evolved over the past ten years to counter a growing variety...
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• Handling margins in CSS 2015-08-20

  Writing accurate, maintainable CSS for large websites requires careful planning and meticulous attention to detail....
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• Code Snippets: Impossible Code 2015-06-30

  This post is part of a series of blog posts called code snippets. These blog...
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• Code Snippets: Fast Runtime Property Access with Reflection 2015-06-26

  This post is part of a series of blog posts called code snippets. These blog...
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• Code Snippets: And in the darkness bind() them 2015-06-18

  This post is part of a series of blog posts called code snippets. These blog...
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• Code Snippets: Variadic Generics in C# 2015-06-16

  This post is part of a series of blog posts called code snippets. These blog...
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• Code Snippets: Conditional Casting 2015-06-12

  This post is the beginning of a new series of blog posts called code snippets....
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• Concurrency, part 6: Easier asynchrony in C# with await 2015-06-11

  Last time, I described more advanced patterns for complicated workflows involving asynchronous operations. These patterns...
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• Concurrency, part 5: Advanced Promise Usage 2015-06-10

  Last time, I listed standard & third-party promise libraries in popular languages, comparing how each...
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• Challenges in Silon 2015-05-16

  While writing Silon, I had to overcome number of challenges. You can see the full...
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• Visual Studio Code under the hood 2015-05-03

  Last week, Microsoft shocked the development community with Visual Studio Code, a new lightweight version...
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• Typename Comments, part 2: The method behind the madness 2015-04-02

  Last time, I introduced a new syntax for code comments, typename comments. April Fools! However,...
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• Introducing Typename Comments – A New Kind of Comment 2015-04-01

  C# has two well-known styles of comments: C-style comments (/* ... */) and C++-style comments...
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• Count() Considered Occasionally Harmful 2015-01-12

  How many times have you seen code like this? if (someSequence.Count() > 2) { }...
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• Concurrency, part 4: Comparing promises frameworks in different languages 2015-01-08

  Last time, I explained what promises are and how they work. Now, I’ll explore standard...
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• Concurrency, part 3: Promises – Asynchronous programming made easy 2015-01-05

  Last time, I explored the two main options for writing asynchronous functions. Now, I’ll describe...
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• Concurrency, part 2: Patterns for Asynchronous Methods 2015-01-04

  Last time, I explained the basic concepts of asynchronous and multi-threaded programming. As I explained...
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• Concurrency, part 1: Parallelism, Asynchrony, and Multi-threading Explained 2014-12-23

  Concurrent programming techniques, such as multi-threading or asynchronous operations, are all the rage nowadays. As...
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• MEF v2, Roslyn, and Visual Studio: An Adventure in Compatibility 2014-11-16

  Background Both Visual Studio and Roslyn use the Managed Extensibility Framework (MEF) to build large...
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• Getting Started with the Visual Studio Theming Architecture 2014-09-04

  Visual Studio 2010 rewrote the entire shell UI – the MDI tabs & tool windows,...
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• How to add a menu item to a Visual Studio extension 2014-08-26

  As I’ve described earlier, when creating a Visual Studio extension, you are given a choice...
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• Exploring Roslyn, part 3: Breaking Changes 2014-05-28

  Last time, I talked about what the Roslyn End-User Preview does and how it works....
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• Exploring Roslyn, part 2: Inside the End-User Preview 2014-05-21

  Last time, I described the basics of the Roslyn compiler platform, including how the different...
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• Exploring Roslyn, part 1: Introduction 2014-04-07

  The .Net Compiler Platform, codenamed “Roslyn”, is the most ambitious project from Microsoft’s Developer Division...
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• Programming without errors – ErrorFree 2014-04-01

  Errors are one of the most common and annoying problems in programming. Whether it’s the...
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• Farewell, MVP Program ... Hello, Google! 2014-03-30

  After four exciting years, I am regretfully leaving the Microsoft MVP program. I have greatly...
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• Extending Visual Studio, part 5: Dealing with Unversioned Assemblies 2014-02-26

  Last time, I talked about how to write Visual Studio extensions that work in multiple...
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• Extending Visual Studio, part 4: Writing cross-version extensions 2014-02-25

  Last time, I talked about the different approaches that Visual Studio takes toward assembly versioning....
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• Dissecting the new .Net Reference Source Browser 2014-02-24

  The new .Net Reference Source Browser (see my previous post) is an excellent example of...
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• Exploring the new .Net Reference Source Code 2014-02-24

  Seven years ago, Microsoft released the .Net Reference Source Code, containing source for much of...
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• Extending Visual Studio, part 3: Assembly Versioning 2014-02-21

  Last time, I talked about the core concepts and basic assemblies within Visual Studio that...
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• Creating multiple Visual Studio “Profiles” with RootSuffixes 2014-01-27

  When using Visual Studio, it can ocasionally be useful to have separate “profiles” – to...
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• The Perils of Uppercase in Gmail's Send As 2014-01-03

  One of Gmail’s many useful features is “Send mail as”, which lets you use a...
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• Redirecting Assembly Loads at Runtime 2013-12-25

  .Net’s assembly resolver (Fusion) takes assembly names (eg, MyCompany.MyProduct, Version=2.1.0.0, , Culture=neutral, PublicKeyToken=3bf5f017df1a30a5) and resolves...
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• Syntax-highlighted Markdown Code Blocks in Web Essentials 2013-12-10

  After over two months of work, I rewrote the Markdown editor in Web Essentials to...
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• Creating unused events in C# 2013-12-01

  Some interfaces have events that most implementations will never raise. For example, the WPF ICommand...
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• Extending Visual Studio 2013, Part 2: Core Concepts 2013-11-10

  My previous post described how to get started writing Visual Studio extensions. This post will...
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• Extending Visual Studio 2013, Part 1: Getting Started 2013-10-18

  In addition to being an excellent development environment, Visual Studio also has a powerful extensibility...
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• Threads vs. Tasks 2013-10-11

  .Net has three low-level mechanisms to run code in parallel: Thread, ThreadPool, and Task. These...
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• LESS: Secrets of the Ampersand 2013-09-29

  One of the less-documented features of the LESS language is the ampersand selector, which refers...
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• Traditional OOP Inheritance in Javascript 2013-09-03

  Javasript is not a traditionally object-oriented programming languague. Wikipedia describes Javascript as a ”scripting, object-oriented...
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• Jekyll bug: Tag was never closed 2013-08-09

  After upgrading to Jekyll 1.1, you may notice that posts that used to work fine...
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• Immutability, part 4: Building lock-free data structures 2013-07-29

  As I mentioned last time, the best way to create simple thread-safe lock-free data structures...
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• Immutability, part 3: Writing thread-safe data structures 2013-07-22

  Last time, I showed how to create a simple covariant immutable stack. One of the...
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• Immutability, part 2.5: Adding covariance to the immutable stack 2013-06-28

  Last time, I showed how to create a simple immutable stack. However, this stack is...
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• Immutability, part 2: Creating a simple immutable stack 2013-06-23

  Last time, I explained the basic meaning of immutability. The simplest useful example of an...
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• Immutability, part 1: Read-only vs. Immutable 2013-06-11

  A read-only object is an object that does not expose any way to change it....
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• Writing the endraw tag in Jekyll code blocks 2013-06-10

  Last time, we saw how to write about Jekyll tags in Jekyll-based blog posts, using...
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• Writing about Jekyll in Jekyll 2013-06-09

  Jekyll is a very nice system for writing blogs. However, it does have some shortcomings,...
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• Migrating client-side syntax highlighting to Jekyll 2013-06-02

  The next step in migrating my blog to Jekyll was to convert the code blocks...
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• Migrating from Blogger to Jekyll 2013-05-31

  The first step in my migration to Jekyll was to import my old posts into...
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• About the new design 2013-05-27

  My new design is powered by Jekyll and LESS (the LESS does as much or...
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• Relaunch! 2013-05-26

  After nearly a year of inactivity, I have finally returned to my blog. I had...
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• Visual Studio 2012 and webpages:Version 2012-06-11

  If you open an older ASP.Net MVC3 project in Visual Studio 2012, you may see...
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• Exploring Caller Info Attributes 2012-03-01

  Last year, Microsoft announced a simple new feature in C# 5: Caller Info Attributes.  These...
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• ASP.Net MVC Unobtrusive Validation Bug 2012-02-21

  If you use the ASP.Net MVC 3 [Compare] validation attribute on a model property, then...
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• Protecting against CSRF attacks in ASP.Net MVC 2012-01-25

  CSRF attacks are one of the many security issues that web developers must defend against. ...
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• The Dark Side of Covariance 2011-12-15

  What’s wrong with the following code? var names = new HashSet<string>(StringComparer.OrdinalIgnoreCase); ... if (names.Contains(sqlCommand.ExecuteScalar()) This ...
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• CAPTCHAs do not mitigate XSS worms 2011-12-08

  One common misconception about web security is that protecting important actions with CAPTCHAs can prevent XSS...
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• About Concurrent Collections 2011-11-20

  One of the most useful additions to the .Net 4.0 base class library is the...
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• Beware of Response.RedirectToRoute in MVC 3.0 2011-11-09

  ASP.Net MVC uses the new (to ASP.Net 3.5) Http*Base wrapper classes (HttpContextBase, HttpRequestBase, HttpResponseBase, etc)...
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• Caller Info Attributes vs. Stack Walking 2011-10-23

  People sometimes wonder why C# 5 needs to add caller info attributes, when this information...
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• Subtleties of C# 5’s new [CallerMemberName] 2011-10-18

  UPDATE: Now that the Visual Studio 11 beta has shipped with this feature implemented, I...
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• Subtleties of C# 5’s new [CallerLineNumber] 2011-10-07

  UPDATE: Now that the Visual Studio 11 beta has shipped with this feature implemented, I...
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• Subtleties of the new Caller Info Attributes in C# 5 2011-10-06

  UPDATE: Now that the Visual Studio 11 beta has shipped with this feature implemented, I...
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• Using a default controller in ASP.Net MVC 2011-09-19

  One common question about ASP.Net MVC is how to make “default” controller. Most websites will...
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• XRegExp breaks jQuery Animations 2011-09-15

  Update: This bug was fixed in XRegExp 1.5.1. However, as far as I know, there...
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• Clarifying Boolean Parameters, part 2 2011-09-14

  Part 1 is here Some languages have better ways to pass boolean parameters.  C# 4.0,...
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• Clarifying Boolean Parameters, part 1 2011-09-12

  Have you ever written code like this: public void UpdateLayout(bool doFullLayout) { //Code if (doFullLayout)...
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• C# is not type-safe 2011-09-08

  C# is usually touted as a type-safe language.  However, it is not actually fully type-safe!...
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• Delegates vs. Function Pointers, Addendum: Multicast Delegates 2011-08-16

  Until now, I've been focusing on only one of the differences between delegates and function...
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• Tracking Event Handler Registrations 2011-07-29

  When working with large .Net applications, it can be useful to find out where event...
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• About .Net Events 2011-07-29

  A .Net event actually consists of a pair of accessor methods named add_EventName and remove_EventName. ...
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• Creating Local Extension Methods 2011-07-27

  Sometimes, it can be useful to make an extension method specifically for a single block...
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• Don’t modify other controls during a WPF layout pass 2011-07-26

  Unlike WinForms or native Win32 development, WPF provides a rich layout model which allows developers...
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• Delegates vs. Function Pointers, part 5: Javascript 2011-07-25

  This is part 5 in a series about state and function pointers; part 1 is...
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• Delegates vs. Function Pointers, part 4: C# 2.0+ 2011-06-19

  This is part 4 in a series about state and function pointers; part 1 is...
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• Open Delegates vs. Closed Delegates 2011-06-14

  .Net supports two kinds of delegates: Open delegates and closed delegates. When you create a...
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• Delegates vs. Function Pointers, part 3: C# 1.0 2011-06-13

  This is part 3 in a series about state and function pointers; part 1 is...
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• Delegates vs. Function Pointers, part 2: C 2011-06-01

  This is part 2 in a series about state and function pointers; part 1 is...
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• Delegates vs. Function Pointers, part 1 2011-06-01

  Most languages – with the unfortunate exception of Java – allow functions to be passed...
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• Html.ForEach in Razor 2011-05-11

  Many people write ForEach extension methods for MVC WebForms views, which take a sequence and...
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• Creating Markup Actions in Razor 2011-05-02

  Razor’s inline helpers allow you to create lambda expression that return markup (as a HelperResult). ...
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• Dissecting Razor, part 9: Inline Helpers 2011-04-29

  In addition to normal and static helpers, Razor supports inline helpers, (also known as templates),...
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• Dissecting Razor, part 8: Static Helpers 2011-03-08

  Razor helpers can be extremely useful, but they are designed to be used only by...
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• Boot Camp just got better 2011-03-06

  The Boot Camp drivers in the latest generation of MacBook Pros now expose more of...
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• Dissecting Razor, part 7: Helpers 2011-02-28

  We’ll continue our trek into Razor’s class-level features with helpers. Helpers are one of Razor’s...
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• Dissecting Razor, part 6: Function Blocks 2011-02-18

  After looking at how Razor’s Execute() method is generated, we will turn to class-level features....
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• Dissecting Razor, part 5: Use the Source, Luke 2011-02-16

  Last time, we saw how basic Razor constructs are translated into C#. We can see...
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• Dissecting Razor, part 4: Anatomy of a Razor Page 2011-02-09

  After looking at the various assemblies in the WebPages framework, we will drill into the...
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• Dissecting Razor, part 3: Razor and MVC 2011-02-03

  Last time, we saw how standalone Razor pages are served. MVC3 maintains the strict separation...
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• Dissecting Razor, part 2: Gluing the pieces together 2011-02-02

  Last time, we saw that ASP.Net Web Pages are implemented in two independent assemblies. These...
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• Dissecting Razor, part 1: Parts of the framework 2011-02-01

  Razor involves two distinct components: The Razor engine and the WebPages framework. The Razor engine,...
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• Modifying HTML strings using jQuery 2011-01-31

  jQuery makes it very easy to modify a DOM tree.  For example, to strip all...
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• Generic Base Classes in ASP.Net MVC 2011-01-30

  Last time, we saw that there are severe limitations in creating ASPX pages which inherit...
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• Generic Base Classes in ASP.Net 2011-01-27

  ASP.Net pages can inherit from custom classes (as long as they inherit System.Web.UI.Page).  This can...
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• Building Connection Strings in .Net 2011-01-26

  .Net developers frequently need to build connection strings, especially when connecting to Access or Excel...
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• Don’t call Html.Encode in Razor Pages 2011-01-21

  One of the unique features of ASP.Net WebPages (formerly Razor) is automatic HTML encoding.  All...
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• Optional Parameters in C# < 4 2011-01-19

  C# 4.0 adds support for optional parameters. The following code prints 4: static void Main()...
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• Writing output in Razor helpers using code 2011-01-12

  The new ASP.Net WebPages view engine (formerly Razor) allows you to create reusable parameterized blocks...
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• Binding to lists of DataRows 2011-01-10

  .Net DataTables can be very useful when writing data-driven applications.  However, they have one limitation:...
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• Partial Type Inference in .Net 2010-12-30

  When designing fluent APIs, one issue that comes up is partial type inference.  If a...
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• Simplifying Value Comparison Semantics 2010-12-29

  A common chore in developing real-world C# applications is implementing value semantics for equality.  This...
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• When shouldn’t you write ref this? 2010-12-22

  Last time, we saw that the this parameter to an instance method in a struct...
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• When can you write ref this? 2010-12-22

  Usually, you cannot pass ref this as a parameter, since this is not a writable...
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• Nothing vs Null 2010-12-22

  VB.Net’s Nothing keyword is is not the same as C#’s null.  MSDN states, “Assigning Nothing...
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• Animating Table Rows with jQuery 2010-12-21

  jQuery contains a powerful and flexible animation engine.  However, it has some limitations, primarily due...
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• Requiring Inherited Types in Generic Constraints 2010-12-17

  A generic class can specify that its generic parameter must inherit a type.  However, there...
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• Nested Iterators, part 2 2010-12-16

  In part 1, we discussed the simple approach to making a nested iterator.  However, we...
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• Nested Iterators, part 1 2010-12-16

  C# 2.0 introduced a powerful feature called an iterator, a method which returns an IEnumerable<T>...
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• On copy prevention in HTML, part 3 2007-04-27

  My previous post stretched the limit of simple copy prevention. Beyond this point, it gets...
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• On copy prevention in HTML, part 2 2007-04-16

  The methods discussed in my previous post are crude and ugly. Most of the time,...
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• On copy prevention in HTML, part 1 2007-04-08

  Many web developers like to prevent their viewers from copying their text. While I do...
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