Linq/Lambda OrderBy Delegate for List of IP Addresses

Question

Given List ips = new List();

I need to sort the list of IP addresses in a logical order (i.e. \"192.168.0.2\" comes before \

Answer 1

You could split this into 4 integer values, and sort by each in turn:

 var results = ips
       .Select(s => string.Split('.').Select(str => int.Parse(str)).ToArray() )
       .OrderBy(intArray => intArray[0])
       .ThenBy(intArray => intArray[1])
       .ThenBy(intArray => intArray[2])
       .ThenBy(intArray => intArray[3])
       .Select(intArray => string.Join(".", intArray) );