Silverlight and "Cover Flow" – Part II

In my last post I talked about the difficulty of implementing a “vanishing point” perspective effect with Silverlight since (currently) it only supports 2D affine transforms.As a result, most of “Cover Flow” implementations with Silverlight “avoided” perspective.However, my belief is that if we do that we’ll significantly diminish the Coverflow interface perceptive quality. How can…

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A Simply but Great Visual Network Tool to Improve Web Site Performance and Best Practices

A few days ago, I needed to analyze and profile a start page of a web site. My main concern was performance (time to get all the page, network issues, unnecessary round trips, unnecessary bytes, …). My first question: Which tool can help me? I found a lot of network tools, and I started out…

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Event Handlers returning Values

By default most event handlers return void, however, it is possible for handlers to return values. In a project you can have two events, a Save event that save data to the database and a Submit event that would send my data to another department. The Save event could be called from a Save button,…

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Silverlight and "Cover Flow" – Part I

The “Cover Flow” graphical user interface gained high popularity since iTunes adopted it in 2006. Although it has become a little “overused” it is still a very attractive three-dimensional GUI for browsing through files and digital media libraries via cover artwork.Cover Flow interface – Image from Wikipedia It was just a matter of time till…

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Solving the Morris Puzzle with F#

It’s been 11 years since I attended a class which presented both the functional and logic programming paradigms in a single semester, materializing in a Prolog and a Caml Light projects. That class shook the grounds on top of which I had been building my plain old common imperative programming skills and so it made…

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What if you don’t want your workflows to just handle the exception and move on?

Workflows are very cool! You can just drag some activities onto your IDE, rearrange them as needed and in no time you have a fully functional sequence diagram workflow or a state machine workflow. Starting with .NET Framework 3.5, you can also implement your WCF operations through activities in workflows, and that is just as…

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How to rename AD Group Name in Site Collection

If you have ever tried to change an AD Group Name, you would have seen that the old name will still appear in the Site Collection. Probably you will try to solve the problem in the SSP Profiles, or using “stsadm migrateuser”, but after some time you will understand that this won’t solve the issue…

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How to Apply Changes Made to a Detached Object without passing it or retrieving it in .NET Framework 3.5 ADO.NET Entity Framework

If you are using .NET Framework 3.5 ADO.NET Entity Framework inside a Web Service the solution proposed at MSDN in How to Apply changes to a Detached object may not be the best solution. How to: Apply Changes Made to a Detached Object (Entity Framework) Both approaches has the following disadvantages: Pass original and updated…

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PAL – Performance Analysis of Logs

Keeping track of your infrastructure’s health can easily become a big challenge. More and more applications mean more machines, different requirements and a lot more places to look for when your users call you complaining that something is wrong. One of the places you’ve probably looked for answers (or were advised to) was the Performance…

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Yet another Death by the ViewState

Yesterday I ran into an issue where the users were complaining about the application being very slow in a specific page. If you read the title you will probably think “here is another post around how viewstate can cause all sort of problems in my application if it´s not well used bla bla bla …”,…

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