Azure Design Patterns

Azure Design Patterns

Learning resources for C# 4.0 and .NET 4.0 new features « Bogdan Brinzarea’s blog

CLR 4.0
Learning resources for C# 4.0 and .NET 4.0 new features « Bogdan Brinzarea’s blog

F# in C# world!!

Microsoft F# Developer Center

Silverlight 3.0

Time to jump in!!

Get Started : The Official Microsoft Silverlight Site

My F# Notes : Introducing F# - Four part webcast series

My F# Notes : Introducing F# - Four part webcast series

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Next generation of languages

F# from Microsoft
Microsoft F# Developer Center

Web Dev .NET: Mini jQuery Lab

Web Dev .NET: Mini jQuery Lab

How To: Scale .NET Applications scaling web services

How To: Scale .NET Applications

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Internet Information Services: Scaling ASP.NET Applications: Lessons Learned

Internet Information Services: Scaling ASP.NET Applications: Lessons Learned

Silverlight Spy : First Floor Software

Silverlight Spy : First Floor Software

CodeProject: Scalable Session-State Storage for ASP.NET Server Farms. Free source code and programming help

CodeProject: Scalable Session-State Storage for ASP.NET Server Farms. Free source code and programming help

Structuring Solutions in Visual Studio and Team Foundation

Structuring Solutions in Visual Studio and Team Foundation

CodeProject: 99.99% available ASP.NET and SQL Server SaaS Production Architecture . Free source code and programming help

CodeProject: 99.99% available ASP.NET and SQL Server SaaS Production Architecture . Free source code and programming help

Wriju's BLOG : LINQ to SQL vs. ADO.NET – A Comparison

Wriju's BLOG : LINQ to SQL vs. ADO.NET – A Comparison

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J.D. Meier's Blog : Top 100 Blogs for Software Development Managers

J.D. Meier's Blog : Top 100 Blogs for Software Development Managers

Architecture Blueprints: Introduction

Architecture Blueprints: Introduction

IoC and DI 101

I was recently tasked with learning PRISM… The next few post will document my learning experience! PLEASE NOTE: I have no experience with previous technologies like CAB… This is truly my idiots opinion about what I have learned trying out PRISM!

I have identified some key “things” I MUST know in order to use PRISM (This list might change in the future). As I learn more about each one of these… I will post about it! The first item on my list is Unity!

“The Unity Application Block (Unity) is a lightweight extensible dependency injection container with support for constructor, property, and method call injection.”

If you want to learn more about dependency injection and IoC, here are some resources that helped me:

IoC and Unity - The Basics and Interception

IMHO… Their are 2 key things that unity provide that I should know. Lets look at the following interface

public interface ILogger
{
void LogSomething();
}And lets create a concrete class implementing this interface

public class ConsoleLogger : ILogger
{
public void LogSomething()
{
Console.WriteLine("ConsoleLogger.LogSomething()");
}
}This now makes it very simple for me to in the future create a different logger (ie. SqlLogger, TraceLogger, etc) and swap them at my will!

ILogger logger = new ConsoleLogger();

The only problem with the code above is that I am now tightly coupled to the ConsoleLogger… I actually need to reference the namespace in which I created ConsoleLogger!


This is were the IoC/DI stuff helps! Lets create a container

IUnityContainer container = new UnityContainer();And then I can register types or instances with this container

container.RegisterType();and now if I ask my container for a ILogger… It will take care of creating the correct concrete class

ILogger logger = container.Resolve();

The code that actually creates the instance of ILogger, doesn’t need any knowledge of the concrete class!!!

It is actually very simple to create a basic IoC container yourself, here are some examples

Understanding IoC Container - sfeldman.NET

Building an IoC container in 15 lines of code


Ken Egozi's IOC in 15 lines

OK, that is the first key “thing”… The next “thing” is the dependency injection… Lets build on our first example that has a logger! Now we also have a CustomerRepository that depends on the ILogger

public class CustomerRepository : ICustomerRepository
{
ILogger _logger;
public CustomerRepository(ILogger logger)
{
_logger = logger;
}

public void GetACustomer()
{
_logger.LogSomething();
}
}

How does unity help us out here? Well, how would this have been done without unit?

ICustomerRepository repository = new CustomerRepository(new ConsoleLogger);

Do you see the tightly coupled stuff? Not so good! Assuming we already have a unity container and a logger registered… here is the unity way

ICustomerRepository repository = container.Resolve();I supply no parameters… The unit container auto-magically resolves it!!!

This only scratches the surfaces of what IoC/DI is capable of… Also remember that Unity is by no means the only one of its kind… here is a cool list of other containers!!!

And that concludes my first baby steps into the world of loosely coupled applications, Inversion of Control, Dependency Injection and much more…

[UPDATE] More Resources

.NET Hitman has a nice article about IoC & Unity

Andrey Shchekin has a nice 2 part post about comparing popular the IoC containers (Part 1 & Part 2)

Thanks Ruby
http://http://dotnet.org.za/rudi/archive/2008/09/05/learning-prism-05-09-2008.aspx

[READ] Channel 10

Channel 10

The Official Microsoft WPF and Windows Forms Site

The Official Microsoft WPF and Windows Forms Site

Get control name in Page_Load event which make the post back

Get Control Id after postback

Get control name in Page_Load event which make the post back

Mike and Mike's Silverlight B2 Videos

Silverlight 2.0 Screencasts

Mike and Mike's Silverlight B2 Videos

Microsoft SharePoint Team Blog : Advanced SharePoint Videos and Whitepapers

Microsoft SharePoint Team Blog : Advanced SharePoint Videos and Whitepapers

Virtual Techdays

Virtual Techdays

IIS 7.0

IIS.net : Learn IIS7: Core Web Server Overview: Introduction to IIS 7.0 Architecture: Planning Your IIS 7.0 Architecture

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Microsoft Learning Manager - free training

Microsoft Learning Manager - English Catalog, Free Products

SharePoint Performance and Capacity Planning

Planet MOSS: SharePoint Performance and Capacity Planning

What is a self join? Explain it with an example.

What is a self join? Explain it with an example.

Abstract and Sealed Classes and Class Members (C# Programming Guide)

Abstract and Sealed Classes and Class Members (C# Programming Guide): "If a virtual method is declared abstract, it is still virtual to any class inheriting from the abstract class. A class inheriting an abstract method cannot access the original implementation of the method—in the previous example, DoWork on class F cannot call DoWork on class D. In this way, an abstract class can force derived classes to provide new method implementations for virtual methods."


class member, method, field, property, or event, on a derived class that is overriding a virtual member of the base class can declare that member as sealed. This negates the virtual aspect of the member for any further derived class. This is accomplished by putting the sealed keyword before the override keyword in the class member declaration. For example:

C# Copy Codepublic class D : C
{
public sealed override void DoWork() { }
}

Static Classes and Static Class Members (C# Programming Guide)

Static Classes and Static Class Members (C# Programming Guide)

XML Web Services Created Using ASP.NET and XML Web Service Clients

XML Web Services Created Using ASP.NET and XML Web Service Clients