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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...

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...
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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...
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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...

Executing one workflow from another synchronously

The InvokeWorkflow activity which comes with Workflow Foundation (.NET 3.0) executes a workflow asynchronously. So, if you are calling a workflow from ASP.NET which in turn calls another workflow, the second workflow is going to be terminated prematurely...
Posted by omar | 114 comment(s)
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