Advanced MVVM by Josh Smith

By Josh Smith

This e-book is for WPF and Silverlight builders trying to take their Model-View-ViewModel abilities to the subsequent point. It experiences how the MVVM layout development used to be used to create a enjoyable and addictive video game that gives a sublime person event. learn this e-book to realize insights from Josh Smith, an famous professional in WPF, Silverlight, and MVVM, on the best way to adequately layout advanced View and ViewModel architectures. tips on how to aid limitless undo, coordinate lively transitions, keep an eye on modal conversation bins from a ViewModel, and lots more and plenty extra.

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ProcessNextTask(); }; } } When pending tasks are made available, three methods work together to process them and perform animated transitions. = null) { // There are some bubbles that need to be animated, so we must // wait until the Storyboard finishs before completing the task. CompleteTask(task); }; // Freeze the Storyboard to improve perf. Freeze(); // Start animating the bubbles associated with the task. Begin(this); } else { // There are no bubbles associated with this task, // so immediately move to the task completion phase.

Special thanks also go to Karl Shifflett for reviewing the manuscript and giving great feedback. He kindly set aside time to read and comment on this document, even though he was in the middle of working on his own projects. Last, but certainly not least, I would like to thank my lovely girlfriend Sarah. This e-book was her idea. She gave me several great suggestions for improving the application’s visual design, and lots of encouragement along the way. Sarah kindly and patiently tolerated me spending all of Valentine’s Day weekend in my apartment writing these words.

We took a tour of the View layer, and examined how the Views fit together to provide a compelling user interface. Afterwards we visited the ViewModel layer and saw how the logical state of the user interface is treated as a first-class citizen of the application. At several points we stopped to reflect on how one can create a separation of concerns by using good judgment and common sense to decide if code should live in the ViewModel or in a View’s code-behind file. Once we had a high-level understanding of the application architecture the real fun began.

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