using System;

public class Program

{

    public static void Main()

    {

        string contents = "'Start - GLM Systems Sdn Bhd - GLMSys.DocumentPlus - Custom code" +

"GLMSys.DocumentPlus.PageExtension.DocSearchExtension.AppendWhereSearch(Me, qbCount)" +

"'Finish - GLM Systems Sdn Bhd - GLMSys.DocumentPlus - Custom code";

        if  (contents.IndexOf("Start - GLM Systems Sdn Bhd - GLMSys.DocumentPlus") != -1)

        {

            Console.WriteLine("Hello World 1");

        }

        else

        {

            Console.WriteLine("Hello World 2");

        }

        string source = "This is an example string and my data is here";

        string data = getBetween(contents, "'Start - GLM Systems Sdn Bhd - GLMSys.DocumentPlus - Custom code", "'Finish - GLM Systems Sdn Bhd - GLMSys.DocumentPlus - Custom code");

        Console.WriteLine(source);

        Console.WriteLine(data);

    }

    public static string getBetween(string strSource, string strStart, string strEnd)

    {

        if (strSource.Contains(strStart) && strSource.Contains(strEnd))

        {

            int Start, End;

            Start = strSource.IndexOf(strStart, 0) + strStart.Length;

            End = strSource.IndexOf(strEnd, Start);

            return strSource.Substring(Start, End - Start);

        }

​

        return "";

    }

}