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

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Chief Architect, SaaS Platform, British Telecom

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Dropthings now available from Microsoft/Web
Dropthings is now available on Microsoft/Web. You can now install it using the Web Platform Installer. I will soon write an article how to make an installer that can install a ASP.NET website, a SQL Server database, setup web.config files, setup directory...
Posted: Sep 29 2010, 06:13 PM by oazabir | with no comments
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Building High Performance Queue in Database for storing Orders, Notifications, Tasks
We have Queues everywhere. There are queues for asynchronously sending notifications like email and SMS in most websites. E-Commerce sites have queues for storing orders, processing and dispatching them. Factory Assembly line automation systems have queues...
Posted: Sep 19 2010, 02:04 PM by oazabir | with no comments
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Finally! Entity Framework working in fully disconnected N-tier web app
Entity Framework was supposed to solve the problem of Linq to SQL, which requires endless hacks to make it work in n-tier world. Not only did Entity Framework solve none of the L2S problems, but also it made it even more difficult to use and hack it for...
Posted: May 18 2010, 10:31 AM by oazabir | with no comments
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Do not use “using” in WCF Client
You know that any IDisposable object must be disposed using using . So, you have been using using to wrap WCF service’s ChannelFactory and Clients like this: using (var client = new SomeClient()) { . . . } Or, if you are doing it the hard and slow way...
Posted: May 14 2010, 12:38 AM by oazabir | with no comments
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ParallelWork: Feature rich multithreaded fluent task execution library for WPF
ParallelWork is an open source free helper class that lets you run multiple work in parallel threads, get success, failure and progress update on the WPF UI thread, wait for work to complete, abort all work (in case of shutdown), queue work to run after...
Posted: Mar 14 2010, 12:54 PM by oazabir | with 2 comment(s)
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Open Source WPF UML Design tool
PlantUmlEditor is my new free open source UML designer project built using WPF and .NET 3.5. If you have used plantuml before, you know that you can quickly create sophisitcated UML diagrams without struggling with a designer. Especially those who use...
Unit Testing and Integration Testing in real projects
I am yet to find a proper sample on how to do realistic Test Driven Development (TDD) and how to write proper unit tests for complex business applications, that gives you enough confidence to stop doing manual tests anymore. Generally the samples show...
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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AspectF fluent way to put Aspects into your code for separation of concern
Aspects are common features that you write every now and then in different parts of your project. it can be some specific way of handling exceptions in your code, or logging method calls, or timing execution of methods, or retrying some methods and so...
Posted: Sep 19 2009, 04:58 PM by oazabir | with no comments
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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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