Перевод из консольного приложения в форму - C#

class StrSearch
    {
        public static string FilePatch;
        static string Str;
 
        static int StrCount;
        static string FileSize;
 
        static string GetSizeInString(string FilePatch)
        {
            System.IO.FileInfo File = new System.IO.FileInfo(FilePatch);
            long size = File.Length;
 
            string[] postfix = { "байт", "Kb", "Mb", "Gb", "Tb" };
            int i = 1;
            double temp = (double)size;
            while ((temp /= 1024) > 1024 && i++ < postfix.Length) ;
            return String.Format("{0:F}", temp) + " " + postfix[i];
        }
 
        static int GetLineString(string FilePatch)
        {
            int StrCount = 0;
 
            using (FileStream fStream = new FileStream(FilePatch, FileMode.Open))
            {
                if (fStream.Length != 0)
                {
                    int b;
                    StrCount = 1;
 
                    while ((b = fStream.ReadByte()) != -1)
                    {
                        if (b == 10)
                        {
                            ++StrCount;
                        }
                    }
                }
            }
 
            return StrCount;
        }
 
        static void Main(string[] args)
        {
            Process thisProc = Process.GetCurrentProcess();
            thisProc.PriorityClass = ProcessPriorityClass.RealTime;
 
            //Console.WriteLine("Enter File:");
            FilePatch = @"1.txt";
 
            Console.WriteLine("Enter Str:");
            Str = Console.ReadLine();
 
            // Create new stopwatch
            Stopwatch stopwatch = new Stopwatch();
 
            // Begin timing
            stopwatch.Start();
 
            StrCount = GetLineString(FilePatch);
            FileSize = GetSizeInString(FilePatch);
 
            Console.Clear();
 
            Console.Write("  [" + FilePatch + " = " + StrCount + " str, " + FileSize + "]");
 
            int ThreadsCount = 1;
 
            Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
            Thread[] ThreadS;
 
            ThreadS = new Thread[ThreadsCount];
 
            for (int i = 0; i < ThreadsCount; i++)
            {
                ThreadS[i] = new Thread((research)); ThreadS[i].Start();
            }
 
            // Stop timing
            stopwatch.Stop();
            // Get the elapsed time as a TimeSpan value.
            TimeSpan ts = stopwatch.Elapsed;
 
            // Format and display the TimeSpan value.
            string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
                ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10);
            Console.WriteLine("\n RunTime " + elapsedTime);
        }
 
        static void research()
        {
            while (true)
            {
                try
                {
                    var StrLine = new StrSearchC();
 
                    if (StrLine.Contains(Str) == true)
                        Console.Write("\n [Found]: " + Str);
 
                    else if (StrLine.Contains(Str) == false)
                        Console.Write("\n [Not Found]: " + Str);
 
                    Console.Write("\n Нажмите любую клавишу для завершения.....");
                    Console.ReadLine();
                    Console.Clear();
                    break;
                }
                catch (ThreadAbortException)
                {
                    break;
                }
                catch (Exception ex)
                {
                    continue;
                }
            }
        }
    }

    class StrSearchC
    {
        private HashSet<string> StrTable;
        public StrSearchC()
        {
            var StrSearchNumbersFromFile = File.ReadLines(StrSearch.FilePatch);
            StrTable = new HashSet<string>(StrSearchNumbersFromFile);
        }
        public bool Contains(string value)
        {
            return StrTable.Contains(value);
        }
    }