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

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Co-Founder and CTO of Pageflakes, acquired by LiveUniverse - founded by MySpace founder.

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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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Memory Leak with delegates and workflow foundation
Recently after Load Testing my open source project Dropthings , I encountered a lot of memory leak. I found lots of Workflow Instances and Linq Entities were left in memory and never collected. After profiling the web application using .NET Memory Profiler...
Posted: Mar 14 2009, 04:37 PM by oazabir | with 4 comment(s)
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Strongly typed workflow input and output arguments
When you run a Workflow using Workflow Foundation, you pass arguments to the workflow in a Dictionary form where the type of Dictionary is Dictionary<string, object> . This means you miss the strong typing features of .NET languages. You have to...
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...
Synchronously execute and get return parameters from Workflow
In my DropThings project, I have used Workflows to develop the business layer that run synchronously and do most of the work in the middle-tier. The business layer facade named DashboardFacade has no code but to call different workflows. Each of the workflow...
Posted: Oct 22 2007, 09:59 AM by oazabir | with 8 comment(s)
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