C# string comparison ignoring spaces, carriage return or line breaks

Question

How can I compare 2 strings in C# ignoring the case, spaces and any line-breaks. I also need to check if both strings are null then they are marked as same.

Thanks!<

Answer 1

First replace all whitespace via regular expression from both string and then use the String.Compare method with parameter ignoreCase = true.

string a = System.Text.RegularExpressions.Regex.Replace("void foo", @"\s", "");
string b = System.Text.RegularExpressions.Regex.Replace("voidFoo", @"\s", "");
bool isTheSame = String.Compare(a, b, true) == 0;