Sensitive and insensitive comparison of string:

// you can make use of string.compare() function

// string.compare(string arg1,string arg2,bool IsIgnoreCase)

string s1 = "Hello";

string s2 = "hello";

if (string.Compare(s1, s2, true) == 0)

{

MessageBox.Show("Both strings are Same in insensitive mode");

}

else

{

MessageBox.Show("Both strings are not Same in insensitive mode");

}

if (string.Compare(s1, s2, false) == 0)

{

MessageBox.Show("Both strings are Same in sensitive mode");

}

else

{

MessageBox.Show("Both strings are not Same in sensitive mode");

}