User Control with Dependency Properties in Silverlight: Dropdown Checklist and Watermark TextBox

Learn to build custom Silverlight user controls to encapsulate reusable functionality, see how and why to use dependency properties along with creating and subscribing to custom events and nesting controls. This session will demonstrate building a watermarked textbox that implements visual states, then implement the watermarked textbox control inside a new control to filter the options of a dropdown checklist box with buttons to check all or none with events that return the selected items.