When the release candidate of Visual Studio 2013 came available, so did the Behaviors SDK. The Behaviors SDK is somewhat similar to the Expression Blend SDK you might have used before when using Behaviors and Actions. Along with the SDK come a couple of actions and behaviors you can use in your Windows Store applications right away.
What are they?
Both behaviors and actions are small pieces of code that can be reused throughout your projects. In the case of the new Behaviors SDK the only thing you need to do is implement an interface. A behavior adds some behavior to an element in your application. A behavior has a method that is invoked when the behavior is attached to a Dependency Object. It also has a method that is invoked when it is detached. An action contains only one method that is invoked when a certain condition is met. This condition can be a event that is raised, or a state of data or well pretty much everything.
Those of you who are used to working with behaviors and actions on other platforms might miss the triggers. Triggers where used to work together with actions, and presented the reason for an action to be executed. In the new Behaviors SDK triggers are no longer there. They are replaced by behaviors.
What's in the SDK?
The Behaviors SDK consists of two parts. One (Microsoft.Xaml.Interactivity) contains the tools you need to create your own behaviors and actions(more about this is a sec). The other (Microsoft.Xaml.Interactions) contains a few of the most commonly used behaviors and actions(which are build with the interfaces from the first part b.t.w.). Not everything you might be used to working with from other platforms is included in de SDK, but I'm pretty sure these will be available through open source channels.
Let's just go over the actions and behaviors included in de SDK.
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Read more: BEHAVIORS SDK
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