string comparison in c# ignore case code example

Example 1: c# string equals ignore case

string.Equals(val, "astringvalue",  StringComparison.OrdinalIgnoreCase)

Example 2: c# case insensitive compare

string str1 = null;
string str2 = "london";

str1?.Equals(str2, StringComparison.CurrentCultureIgnoreCase); // true