Default implementation that takes care of dividing the parsing into three stages, before parsing, during parsing, and after parsing, by calling the methods BeforeParsing, DuringParsing, and AfterParsing that derived classes should normally override to do the setup, parsing, and clean-up work. Derived classes do not need to override this method unless they need to add additional functionality outside of the three parsing implementation methods.

public virtual bool ParseNext()

Public Overridable Function ParseNext As Boolean

public:
virtual bool ParseNext()

abstract ParseNext : unit -> bool 
override ParseNext : unit -> bool