Omar AL Zabir blog on ASP.NET Ajax and .NET 3.5

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Simple way to cache objects and collections for greater performance and scalability
Caching of frequently used data greatly increases the scalability of your application since you can avoid repeated queries on database, file system or to webservices. When objects are cached, it can be retrieved from the cache which is lot faster and...
Posted: Nov 01 2009, 10:43 PM by oazabir | with 2 comment(s)
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Web 2.0 AJAX Portal using jQuery, ASP.NET 3.5, Silverlight, Linq to SQL, WF and Unity
Dropthings – my open source Web 2.0 Ajax Portal has gone through a technology overhauling. Previously it was built using ASP.NET AJAX, a little bit of Workflow Foundation and Linq to SQL. Now Dropthings boasts full jQuery front-end combined with ASP.NET...
Posted: Apr 09 2009, 01:32 AM by oazabir | with 1 comment(s)
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Linq to Sql solve transaction deadlock and query timeout problems using uncommitted reads
When your database tables start accumulating thousands of rows and many users start working on the same table concurrently, SELECT queries on the tables start producing lock contentions and transaction deadlocks. This is a common problem in any high volume...
Linq to SQL: Delete an entity using Primary Key only
Linq to Sql does not come with a function like .Delete(ID) which allows you to delete an entity using it’s primary key. You have to first get the object that you want to delete and then call .DeleteOnSubmit(obj) to queue it for delete. Then you have to...
Posted: Oct 30 2008, 01:22 PM by oazabir | with 4 comment(s)
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Solving common problems with Compiled Queries in Linq to Sql for high demand ASP.NET websites
If you are using Linq to SQL, instead of writing regular Linq Queries, you should be using Compiled Queries . if you are building an ASP.NET web application that’s going to get thousands of hits per hour, the execution overhead of Linq queries is going...
Posted: Oct 28 2008, 02:24 AM by oazabir | with 6 comment(s)
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HTML and IFRAME widget for Dropthings
I made two new widgets for Dropthings - one is an HTML widget, that allows you to put any HTML content inside a widget and the other one is an IFRAME widget that allows you to host an IFRAME to any URL. You can see example of these widgets from www.dropthings...
Posted: Apr 05 2008, 12:50 PM by oazabir | with 6 comment(s)
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My first book - Building a Web 2.0 Portal with ASP.NET 3.5
My first book " Building a Web 2.0 Portal with ASP.NET 3.5 " from O'Reilly is published and available in the stores. This book explains in detail the architecture design, development, test, deployment, performance and scalability challenges of my open...
Linq to SQL: How to Attach object to a different data context
After upgrading to Visual Studio 2008 RTM, you will have trouble updating Linq to SQL Classes which are read from one data context and then updated into another data context. You will get this exception during update: System.NotSupportedException: An...
Posted: Dec 08 2007, 07:00 PM by oazabir | with 10 comment(s)
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