Constant
- Its value is determine at compilation time and embedded in the IL.
- Set at compilation time.
- Can only for define for primitive type.
ReadOnly
- Its value is initialized at the run-time inside the constructor.
- Set during run-time.
- Can be define for value type and reference type.
Value Type
- Allocated on stack
- Have both representation i.e. boxed form & unboxed form
- Derived from System.ValueType
- No Method can be abstract
- While assigning field by field copy is made.
- Storage is free as soon as they goes out of scope
Reference Type
- Allocated on heap
- Always has boxed formed
- Derived from any object other than System.ValueTye
- Methods can be abstract
- While assigning only memory address is copied
- Storage is freed using Garbage collection
