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

Answer 1

static class Constants
{
    public const int MIN_LENGTH = 5;
    public const int MIN_WIDTH  = 5; 
    public const int MIN_HEIGHT = 6;
}

// elsewhere
public CBox()
{
    length = Constants.MIN_LENGTH; 
    width  = Constants.MIN_WIDTH; 
    height = Constants.MIN_HEIGHT;  
}