When you build automated WPF functional test using White in which you need to open a file through a Windows open file dialog, you will be confronted with the following issue. Windows open file dialog remember the last path with which you opened a file.

So you might have some unit tests that are green for a while which starts to be red for no apparent reasons.
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At Innoveo Solutions we are using .NET and WPF for our Innoveo Skye® Editor application. Skye® Editor is a distribution channel editor targeting business people letting them edit and configure their insurance products.

From the beginning we have adopted the Model-View-ViewModel architecture. Having our solution growing we were facing the issue of having our ViewModels dependency growing too. Some ViewModel became too much dependent of others. This was obvious in our unit tests whose complexity to setup were growing too. It was time to find a solution to decouple the ViewModels.
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I am working for a couple of months now with WPF and MVVM on an a business application using .NET Framework 3.5 SP1. Lately I faced a memory leak. Not the easy kind of memory leak with events handlers which keeps objects and its element tree alive, as explained here.

No it was something else ! I searched in our code for quite some time without finding anything.
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Author's picture

Laurent Kempé

I am an experienced Team Leader & Senior Solutions Architect with a passion for shipping high-quality products by empowering development team and culture toward an agile mindset. I bring technical vision and strategy, leading engineering teams to move product, processes and architecture forward.


Team Leader, Senior Solutions Architect


Illzach, France