NET Boxing and Unboxing

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NET Boxing and Unboxing - April 1, 2009 at 17:30 PM by Rajmeet Ghai

Explain Boxing and Unboxing in .NET.

Boxing permits any value type to be implicitly converted to type object or to any interface type Implemented by value type. It is the process of allocating an object instance and copying the value type value into that instance.

E.g.
Int I =10;
A boxing conversion involves copying of the value being boxed.

Boxing permits any value type to be explicitly converted to type object or to any interface type Implemented by value type. It first checks the object instance is a boxed value of the given value-type, and then copying the value out of the instance.

E.g.
Object box = 11;
Int I = (int) box;

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