Design issue: Struct vs. Class

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After reading the thread "Struct faster than class?" I thought I should surely understand if I am doing anything wrong in my work.
 
First, Jon you are very professional. Excellent. I will wish you as my mentor.
 
Anyways, getting to my question --
 
I am in need of enums a lot in my project. More for meta data reasons. e.g. Toggle -on/off, Close/Open etc.
Most are int type values but this one meta data is full of Guid. Now that enum supports int etc and not string or Guid so I endup making it a Struct. No perticular reason, just to make it look different while programming (as there are tons of classes to keep track of). Anyways, I am not sure if this approch is better (or even ok). Not being familier with memory management etc (and will love to get pointers to read more on this also) I am not sure how things are handled run time if it is changed to static Class type. I have so many questions on this topic alone so please feel free to throw anything on this side.
 
Thanks,
Po

Relevant Pages

  • Re: How to handle PK field using Int datatype when moved to a new serv
    ... fragmentation etc. // ... stick with bigint (unless int satisfies your requirements then ... stick with int) unless you have a reason to go to GUID. ... Erland Sommarskog, SQL Server MVP, esquel@xxxxxxxxxxxxx ...
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    (microsoft.public.sqlserver.programming)
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