problem with CodeCompileUnit

[chris]

Hi all,
I must realize the function and VS IDE is similar.I increase a method to
arrive
CodeCompileUnit ,Then produces this method the code to join to the code file
in the
appropriate position,this code file possibly contains continues class,and
these codes can edit, but only then CodeCompileUnit produces not merely
code,is this each time increases the method then production code to join to
the code file in.This code file is .cs file or .vb file.Who can say in detail
how realizes this function?

Also has is i want to use the CodeDomProvider.Parse method originally
the code parse CodeCompileUnit object,but throw
System.NotImplementedException.What good suggestion do you have?
-thanks