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Last week we had our annual SDP conference in Sela’s offices and in Crowne Plaza in Tel-Aviv. I had the pleasure of talking about several of the technologies I’m dealing on a daily basis (well, almost every day) which were: Entity Framework . The first day of the convention was all about Entity Framework. Erez , Gil , and myself gave several lectures dedicated to Entity Framework. The day ended with an “EF expert panel” which I enjoyed very much. I think will make a habit or doing this panel...
Today, after giving my lecture on what’s new in WCF 4 as part of Sela’s SDP (Sela Developer Practice) conference, I got an email from one of my clients regarding a problem they encountered when trying to deploy their WCF service to an IIS 6 server. They got exceptions when calling the service, and it seemed it wasn’t able to get hosted. After some investigation they came up with the following error message thrown by WCF: 14/03/2011 14:38: [Exception Type:=System.ServiceModel.ServiceActivationException;Application_Error...
Today at the SDP I gave a lecture on the different ways we can communicate with the web from Silverlight 4. We talked about the different HTTP Stacks Silverlight offers and the many communication types & technologies you can use, such as: Simple http requests Restful services Syndication (Rss/Atom) feeds ASMX Web Services WCF services WCF Data Services TCP communication UDP communication Yes, you can do all the above with Silverlight 4 ! In addition, we talked about different WCF scenarios that...
Just finished passing my presentation about ORM & Entity Framework basics This presentation is part of a whole-day seminar about ORM Tools & Concepts Currently Bernie & Erez are demonstrating NHibernate & Entity Framework head-to-head and later on Gil will deep dive into Entity Framework and Erez & Bernie will once again join forces to talk about Data Access Pattern in the real world. We’ll finish the day with an Expert Panel, where Oren Eini will join us to talk about ORMs, NHibernate...
In the past, when we tried to connect from Silverlight 2 to WCF Services that threw exceptions (every now and then), we got the famous “Not found” Communication Exception. The reason we didn’t get a SOAP Fault is that WCF returns SOAP Fault responses with a HTTP code of 500 – this is according to SOAP protocol , but the browser doesn’t allow 500 responses to be returned to Silverlight – it replaces them with a CommunicationException and thus hides the real fault that returned. When we moved to Silverlight...
First time that I can say – there are MANY people that use EF4. How do I know? because the session had the room filled with people, with people waiting outside ! EF 4 is great. It solved many of the problems of EF3.5 and made the technology more mature and useful. What annoyed me in the lecture is that it showed all the features of EF4 that people already know of (well, I know of). The title was misleading because I thought they will talk about new features that don't exist currently. Here is...
I must admit, I had not used ASP.NET for a long time (lately I’m a Silverlight fan), so most of the things were new to me. What I liked about this session is that it was indeed about “Futures” because some of the things shown were still in development. The topics discussed: Helpers RAD development using ActiveRecord over Entity Framework for Asp.Net MVC Introducing TaskScheduler to perform background tasks (no need to code with System.Threading no more) Sending Emails with verification New control...
As I've stated before, I attended the data programming and modeling session - And I enjoyed every minute. Chris Anderson and Don Box rock ! They talked about Entity Framework 4 – The automatic lazy load (no more need to call the damn Load() method), different approached of model first, POCO and code only (using the fluent API) etc. There was a talk about code first having a configuration class instead of writing all the fluent API by hand, and without having to add attributes to your POCO classes...
Wow ! I’m not familiar with events of this size. For me, Israeli Tech-Ed was the biggest event I attended. Well, there’s something strange about flying 20 hours to the far end of the world, going to a city with million of people of different types, and entering a conference center will thousands of geeks moving around. First Keynote was interesting, a lot of talking about “3 screens and a cloud”, cloud in general, Azure in specific. Many new features in VS2010, IIS, and Windows to support all the...
Last week, a colleague of mine asked me to create a sample composite design pattern model in Entity Framework. I thought to myself, no problem, created the table that contains the Component, Leaf & Composite entities (according to TPH – Table Per Hierarchy) and went to build the EDM based on the table and there I started to have problems which needed manual fixing. Since I’m working with EF 3.5, I’ve built the DB prior to the model – In EF 4.0 you can do model-first and build your db by script...
A few day ago, a colleague of mine, Shlomo Goldberg , raised a question about Entity Framework and large models. Another colleague of mine, Gil Fink posted some links to helpful tips for using large models, and I want to talk about one of these tips – using the View Generation option. If you’ve worked with large models in Entity Framework 3.5, you probably noticed that as the model grows, it takes more time to initialize the ObjectContext for the first time. A solution to this is to use view generation...
כפי שרשמתי בפוסט קודם, ב-15/9 אני אעביר הרצאה בנושא AJAX ו-Entity Framework . ההרצאה על AJAX תהיה ברמת סקירה של הטכנולוגיה והיכולות שלה, אך למי שמעוניין בהרצאה קצת יותר מעמיקה (רמת Deep Dive), אני אעביר הרצאה שכזו בכנס המפתחים של סלע, אשר יתקיים בין התאריכים 22-25 לספטמבר (ההרצאה שלי תהיה ב-22 לספטמבר). ההרצאה תעסוק בסקירה מעמיקה של איך טכנולוגיית AJAX עובדת (מי ש-Javascript עושה לו בחילה מומלץ שיבוא עם כדורי פראמין ושקית הקאה) והצגה של אפשרויות ההרחבה לרכיבים הקיימים והאופן בו יוצרים רכיבים חדשים...