The present invention provides a knitting method of a tubular knitted fabric with a projection part having stretch and a supporting performance and formed in an arbitrary shape and at an arbitrary location by using a flat knitting machine. The label comprises a dual-ply construction, with a grid pattern placed between the layered materials. When the virtual keyboard is invoked for display in the same region, the underlying graphical user interface is redrawn with a further user interface element corresponding to at least one of the user interface elements previously displayed in the first region, so that the further user interface element is actuatable to invoke a command to carry out the corresponding function.