c# - String to dictionary, and back again -

i working string this:

norway, true; sweden, false; england, null; denmark, false; 

i'm trying dictionary<string, bool?> can work it, remove items, compare against other stuff. when i'm done, want convert dictionary similar string , save it.

any ideas?

you can convert dictionary using split method , linq:

var dict = str.split(';')     .select(s => s.split(','))     .todictionary(         p => p[0].trim()     ,   p => p[1].trim().equals("null") ? null : (bool?)(bool.parse(p[1].trim()))     ); 

converting easier:

var res = string.join("; ", dict.select(     p => string.format(         "{0}, {1}"     ,   p.key     ,   p.value.hasvalue ? p.value.tostring().tolowercase() : "null"     ) ));