What is the correct way to compare char ignoring case?

Question

I\'m wondering what the correct way to compare two characters ignoring case that will work for all cultures. Also, is Comparer.Default the best way

Answer 1

Using the default (that is not the invariant) culture:

if (char.ToLower(ch1) == char.ToLower(ch2))
{  ....  }

Or specify a culture:

CultureInfo myCulture = ...;
if (char.ToLower(ch1, myCulture) == char.ToLower(ch2, myCulture))
{  ....  }