“CaseInComparison” (Solution)
Answer
No.
Explanation
It depends from current CultureInfo. An example:
var a = "i";
var b = "I";
Thread.CurrentThread.CurrentCulture =
CultureInfo.CreateSpecificCulture("tr-TR");
Console.WriteLine(
string.Compare(a.ToUpper(), b.ToUpper())); //'1'
Console.WriteLine(
string.Compare(a, b, StringComparison.OrdinalIgnoreCase)); //'0'