This weekend I was doing some digging around ADO.NET data services, WCF and Entity Framework
ADO.NET Data Services:
You can use ADO.NET Data services (you need SP1) to expose your Entity framework over the wire, with almost zero code. But as I understand, the only limitation is, the transaction is over HTTP, and at this point, I can't find any solid way of exposing data services over net.tcp.
That means, there is a small over head in terms of serialization (we all know binary serialization is faster), but the advantage is the speed of implementation for our services. We don't really need to write any services at all - You can just hook our validation and security logic around the data services and entity framework and we are done. Ideal if you are consuming data centric services over http - in scenarios like having a silverlight client, or a winform/wpf front end over http. Also on the con side - you should be aware that you can't put any serious business logic or work flow inside services
Exposing Entity Framework over WCF:
With SP1, there is lot of support for employing entity framework in layered architectures. This includes support for eager loading and context management. Of course, in this case, you need to write the services (and the logic behind your methods).
Recommending you to read this MSDN article from John which provides an end to end example for demonstrating Entity framework with a layered architecture.
Another alternative might be to use EFPocoAdapter , to have a plain POCO wrapper on top of the entity framework for dtos, instead of exposing entity framework classes directly. Right now it is a compass project for next version of Entity framework.
I got an unofficial word from John on this - "Definitely more options with wcf. More work in most cases too. Astoria exposes entities easily. Perf diffs are negligible in most cases"
Some time back, I collated a list of 7 Must Read, Free EBooks for .NET Developers, and a lot of people found it useful. So, I thought about putting together a list of Coding Standard guidelines/checklists for .NET /C# developers as well.As you may already know, it is easy to come up with a document - the key is in implementing these standards in your organization, through methods like internal trainings, Peer Reviews, Check in policies, Automated code review tools etc. You can have a look at FxCop and/or StyleCop for automating the review process to some extent, and can customize the rules based on your requirements.Anyway, here is a list of some good Coding Standard Documents. They are useful not just from a review perspective - going through these documents can definitely help you and me to iron out few hidden glitches we might have in the programming portion of our brain. So, here we go, the listing is not in any specific order.1 – IDesign C# Coding StandardsIDesign C# coding stand…
As I mentioned in my last post, more and more organizations are leaning towards Web Oriented Architecture (WOA) which are highly scalable. If you were exploring cool, scalable options to build highly performing web applications, you know what Node.js is for.After following the recent post from Scott Hanselman, I was up and running quickly with Node.js. In this post, I’ll explain step by step how I’ve setup Node.js and Mongodb to create a simple Todo listing application.Setting up Node.jsThis is what I’ve done.1 – Goto http://nodejs.org/, scroll down and download node.exe for Windows, and place it in your c:\node folder2 – Goto IIS Node project in Git at https://github.com/tjanczuk/iisnode, download the correct ‘retail’ link of IIS Node zip file (I downloaded the already built retail package, otherwise you can download and build from the source).3 – Extract the zip file some where, and run the install.bat or install_iisexpress.bat depending on your IIS Version. If you don’t have IIS in…
Happy New Year, this is my first post in 2012. I’ll be sharing few awesome learning resources I’ve bookmarked, and will be pointing out some specific computer/programming related courses I've found interesting from these resources.Also, thought about saving this blog post for my kids as well - instead of investing in these Child education schemes (though they are too small as of today, 2 years and 60 days respectively ). Anyway, personally my new year resolution is to see as much videos from this course collections (assuming I can find some free time in between my regular job && changing my babies diapers).1 – Khan AcademyAs I mentioned some time back, you and your kids are missing some thing huge if you havn’t heard about Khan Academy. It is an awesome learning resource, especially if you want to re-visit your basics in Math, Science etc.With a library of over 2,600 videos covering everything from arithmetic to physics, finance, and history and 268 practice exercises, th…