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Wednesday, February 15, 2012

Basic difference between Constant and readonly

This is a basic question we are facing while giving interview. So lets discuss the basic difference between Constant and Readonly in C#.Net.

Constant('const'):
(1)- It cannot be static.

(2)- Value is evaluated at compile time or must be initialized at the time of creation or compile time.

(3)- Initialized at declaration only.

'Readonly':
(1)- It can be either instance-level or static.

(2)- Value is evaluated at runtime.

(3)- Can be initialized in declaration or by code in the constructor.

You can also check Difference between cookie and session in asp.net.




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