How to add a case-insensitive option to Array.IndexOf

Question

I have a string

string str=\"hello\";

This is my array

string[] myarr = new string[] {\"good\",\"Hello\", \"this\" , \"new\         


        

Answer 1

Array.IndexOf calls the default "Equals" method which is case-sensitive. Try this:

Array.FindIndex(myarr, t => t.Equals(str, StringComparison.InvariantCultureIgnoreCase))