Usually in any business application there is a big set of control elements which often implement complex functionality and can confuse a user. To make a user’s work easy, there are various types of help in almost every application. These helps are shown in a variety of ways: labels and images on a form, audio and video resources, etc. However, the most popular are tooltips which are displayed as a result of a mouse cursor hovering over a control element. This kind of help is very user-friendly because it allows us to use the maximum space on a form (just necessary help is displayed).

Tool tips support is already implemented in both Windows Presentation Foundation and Silverlight and there is no need to make additional efforts to realize similar behavior. However, you should not expect that, in Silverlight, there are fewer capacities to work with tool tips than in WPF. Nevertheless, existing functionality is enough to create your own scenarios of work with tool tips.