Split string by last separator

Question

What I have is a giant text file that contains a bunch of strings that are split by \\. The problem for me is there can be 5 \\ or 4 \\ o

Answer 1

string last = inputString.Substring(inputString.LastIndexOf('\\') + 1);

Answer 2

string myString = inputString.Split('\\').Last();

Answer 3

Almost forgot this one (although it's a bit cheeky):

string result = Path.GetFilename(input);