using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        string searchString = @"/ЭДПФР[1]/СЗВ-ТД[2]/ЗЛ[3]/ТрудоваяДеятельность[4]/МероприятиеОтменяемое[5]";

string theA = string.Empty;

string theB = string.Empty;

string theC = string.Empty;

string pattern = @"\[(?<A>\w+)\].+\s*\[(?<B>\w+)\].+\s*\[(?<C>\w+)\].+\s*\[(?<D>\w+)\].+\s*\[(?<E>\w+)\]"; // continue the pattern for your needs

Regex rx = new Regex(pattern);

​

Match m = rx.Match(searchString);

​

if (m.Success)

{

    theA = m.Groups["A"].Value;

    theB = m.Groups["B"].Value;

    theC = m.Groups["X"].Value;

}

        Console.WriteLine(theA);

        Console.WriteLine(theB);

        Console.WriteLine(theC);

    }

}