Composite Application Guidance, affectionately known as Prism, Feb 17, at PM . Added the following code in Composite Application Guidance v3 for WPF and Silverlight This folder contains changes to the February release to target the Silverlight v3 platform. Prism v2 – Guidance and Patterns for WPF and Silverlight. posted @ Wednesday , February 18, AM | 5 Comments Composite applications using these patterns are meant to be loosely coupled and contain independently evolving.

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PRISM: Composite Application Guidance for WPF and Silverlight

Also he talked about frameworks created to help assist in rapid development using these patterns without sacrificing good application development patterns. MVVM is a pattern, there is no specific way to do it right.

People look for patterns to describe common way for programming The interesting part of this application is that views can be imported into the main window as dynamic parts, simply by decorating them with the MEF Export attribute. In the first post of this series I generally wrote about Prism and how can it fit in WPF applications.


In this second post I would like to introduce a Home Automation application UI, show how to design it as a monolithic application, talk about the disadvantages of a monolithic application, and finally show how to design it as a Composite Application.

What is a Home Automation? For others, security may be the central application. Still others may choose to install We should know how to control both. I will start with WPF has a great support for handling data: Unfortunately, one of the elements you bind to the target must have a DependencyProperty known as the target-property. What if you don’t have a dependency property to bind to, or you just want to bind two CLR types?

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For example let say that you wrote an application for simulating a car. You may have a Apolication and a Speedometer classes. Let say that a car handles its own speed, hence the car has its own speed state exposed by a Speed property.

A speedometer measures speed, hence it also In my previous post I showed how to design a data model which provides the following characteristics: Property notification changes In-memory state persistency Commit and Rollback mechanism Dirty flag In this post I will show how to handle multi-threading scenarios with WPF data binding.


You can download the complete code from here.

Before I will start, I want to give a little background of the WPF threading model, and to explain why you shouldn’t change any data-bind object from a different thread. The WPF threading model is very simple: This means that like other UI technologies such as Windows Forms, WPF extends this mechanism by adding some great features, especially when dealing with Data Templates, which provides an easy way for reflecting the data with view.

Data binding is a great mechanism, but there are some situations that data-binding not exactly fits. As every aspect in the real life especially in softwarenot everything is perfect and so is WPF.

The Morning Brew – Chris Alcock » » February

A Control Template is actually the control’s view-factory. It is responsible for defining the structure of the view.

Asynchronous Programming Design Patterns.