using System;

​

​

public class Program

{

    public static void Main()

    {

            string str1 = "hello";

            string str2 = "Hello";

​

            var isequal  = Compare<string>(str1, str2, StringComparison.OrdinalIgnoreCase);

            Console.WriteLine(" String ignore Case Equality Test {0}, {1} is {2} ", str1,str2, isequal);

            isequal  = Compare<string>(str1, str2);

            Console.WriteLine(" String case force Equality Test {0}, {1} is {2} ", str1,str2, isequal);

            //Console.WriteLine("string equality of {0} and {1} are {3}",str1,str2,isequal);

​

​

    }

   public static bool Compare<T>(T str1, T str2, StringComparison comparisonType = StringComparison.Ordinal)

{

    if (str1 == null || str2 == null)

    {

        return true; // null checks

    }

​

    return string.Compare(str1.ToString(), str2.ToString(), comparisonType) == 0;

}

}

​