Tooltips on Controls in WPF 29-12-2015 14:03:33 C# / WPF 0 Bookmark(s) 209 View(s) In WPF all controls have a ToolTip property. This can either be set to a simple string: Or contain an arbitrary WPF element. In this case the property must be written in the property element syntax and be wrapped by an instance of a ToolTip. Submit Request Submits the request to the server.