C# string format flag or modifier to lowercase param

Question

Is it possible to specify some kind of flag or modifier on a string format param to make it lower case or upper case?

Example of what I want:

String.         


        

Answer 1

In short, no; AFAIK you'd have to fix the source values, or use your own replacement to string.Format. Note that if you are passing in a custom culture (to string.Format) you may want to use culture.TextInfo.ToLower(s), rather than just s.ToLower().