How come Nullable<int> can be converted to IFormattable though Nullable<int> not impleme...

C# question: Why cannot I assign a string directly to a class inheriting System.IFormattable or Syst...

Difference between String, FormattableString, IFormattable...

Custom string formatter in C#...

Can any assumptions be made about the relationship between object.ToString() and IFormattable.ToStri...

Reference Implementation for IFormattable...

Function with IFormattable parameter won't accept a String...