(a) Subject to subsection (b) of this section, a charge of theft may be proved by evidence that the theft was committed in a manner that is theft under this part, even if a different manner is specified in the information, indictment, warrant, or other charging document.
(b) A court may grant a continuance or other appropriate relief:
(1) to ensure a fair trial; and
(2) if the conduct of the defense would be prejudiced by lack of fair notice or by surprise.