360TRef

main.cs

using System.Linq;
using System.Text.RegularExpressions;
using ServiceStack;
using ServiceStack.Text;

var mysisRef = "360T364827992x";

var _360tRef = Get360TReference(mysisRef);
_360tRef.PrintDump();
	
public string Get360TReference(string mysisRef)
{
	var regex = new Regex(@"^360T(\d+)[a-zA-Z]?");
    var match = regex.Match(mysisRef);
	
    if (match.Success)
    {
        return match.Groups[1].Value;
    }
	
	return null;
}

packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="ServiceStack.Text" version="5.2.0" targetFramework="net45" />
  <package id="ServiceStack.Client" version="5.2.0" targetFramework="net45" />
  <package id="ServiceStack.Interfaces" version="5.2.0" targetFramework="net45" />
</packages>