private static void PathCopyFilesWithOriginalFolder()

        {

            int sourceFilesNum = ;

            try

            {

                string sourceDir = @"E:\Source";

                string destDir = @"E:\Dest";

                string[] allSourceFiles = Directory.GetFiles(sourceDir, "*", SearchOption.AllDirectories);

                if (allSourceFiles != null && allSourceFiles.Any())

                {

                    foreach (var sourceFileFullName in allSourceFiles)

                    {

                        string sourceFileDir = Path.GetDirectoryName(sourceFileFullName);

                        string sourceFileRelativeDir = string.Empty;

                        if (sourceFileDir.Length > sourceDir.Length)

                        {

                            sourceFileRelativeDir = sourceFileDir.Substring(sourceDir.Length + );

                        }

                        else

                        {

                            sourceFileRelativeDir = "";

                        }

                        string destFileDir = Path.Combine(destDir, sourceFileRelativeDir);

                        if (!Directory.Exists(destFileDir))

                        {

                            Directory.CreateDirectory(destFileDir);

                        }

                        string destFileFullName = Path.Combine(destFileDir, Path.GetFileName(sourceFileFullName));

                        File.Copy(sourceFileFullName, destFileFullName, true);

                        string msg = $"SourceFileFullName:{sourceFileFullName},DestFileFullName:{destFileFullName}";

                        Console.WriteLine(msg);

                        sourceFilesNum++;

                    }

                }

            }

            catch(Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

            finally

            {

                System.Diagnostics.Debug.WriteLine(sourceFilesNum);

            }

        }