How to define constants in Visual C# like #define in C?

Question

In C you can define constants like this

#define NUMBER 9

so that wherever NUMBER appears in the program it is replaced with 9. But Visual C# doesn't do this. How is it done?

Answer 1

You can't do this in C#. Use a const int instead.

Answer 2

public const int NUMBER = 9;

You'd need to put it in a class somewhere, and the usage would be ClassName.NUMBER

Answer 3

Check How to: Define Constants in C# on MSDN:

In C# the #define preprocessor directive cannot be used to define constants in the way that is typically used in C and C++.