Customize the Style of the Button And ToolTip Controls in Silverlight

The Data property of path specifies the shape to be drawn. The Data attribute string begins with the "move to" command, indicated by M, which establishes a start point for the path in the coordinate system of the Canvas.End with Z Command. Path has Data. By specifying a value for Data you can supply the necessary visuals for any custom shape that can be described by a geometry, or even by the Path.Data .