This behaviour enables mouse wheel scroll on datagrids and is based on some blogs I have found. Just providing it here as there is no other solution in the gallery yet.

In Silverlight when in full-screen mode keyboard input is, by design, constrained to a limited set of keys – to overcome this limitation the provided Virtual Input Keyboard control and accompanying behaviours, allows you to attach an on-screen keyboard onto any UI control.

This behavior can be used to resize any UIElement based on any event. Essentially, this is resizing behavior that uses animations to change element's size. In the example I am using this behavior to change the size of textboxes, using various events such as GotFocus and MouseEnte

This is a custom behavior that you can apply to a panel (or derivative of), that will allow you to "BringToFront" a child on click.

This behavior demonstrates a simple technique for allowing the ViewModel to managed the closing events of the View Window in a WPF Model-View-ViewModel application.

This behavior enables you to resize a Framework Element. Currently, this behavioronly works if the attached object is inside a Canvas.
Also this behavior enables you to havenested resizable elements.
If you have questions or comments feel free to contact me.

Behavior attached to ComboBox will open drop-down list when mouse will be over.

XAML:
<ComboBox >...

Behavior attached to TextBox can invoke targeted Button control when user click Enter.
It will be useful in MVVM applications in search controls and forms, where user can finish his work by clicking "Enter" key or a button.

This behavior enables rapid access to items in ComboBox and ListBox controls throught key press.

Multi-Touch behaviors implementing Drag and Zoom gestures