How to declare a class instance as a constant in C#?

Question

I need to implement this:

static class MyStaticClass
{
    public const TimeSpan theTime = new TimeSpan(13, 0, 0);
    public static bool IsTooLate(DateTime          


        

Answer 1

From this link:

Constants must be a value type (sbyte, byte, short, ushort, int, uint, long, ulong, char, float, double, decimal, or bool), an enumeration, a string literal, or a reference to null.

If you want to create an object, it must be done so as static readonly:

static class MyStaticClass
{
  public static readonly TimeSpan theTime = new TimeSpan(13, 0, 0);
  public static bool IsTooLate(DateTime dt)
  {
    return dt.TimeOfDay >= theTime;
  }
}