C# WinApp If แบบหลายๆเงื่อนไขแบบนี้ถูกไม๊ครับ if (delFolder != DelOption.Nothing || (delFolder == DelOption.DelEmpty && filesystem.GetFolder(dirs.FullName).Size <= 0) || delFolder == DelOption.DelAll)

public static void DeleteFileAndFolder(string pathSources,DelOption delFolder = DelOption.DelEmpty,DelOption delFile = DelOption.DelEmpty,string delExt = "",bool msg = true )
        {
            new System.Threading.Thread(RenameFileByFolder).Start(new object[] { pathSources,delFolder,delFile,delExt ,msg});
        }
         void DeleteFileAndFolder(object obj)
        {
            string path = (string)((object[])obj)[0];
            DelOption delFolder = (DelOption)((object[])obj)[1];
            DelOption delFile = (DelOption)((object[])obj)[2];
            string delExt = (string)((object[])obj)[3];
            bool msg = (bool)((object[])obj)[4];
            IWshRuntimeLibrary.FileSystemObject filesystem = new IWshRuntimeLibrary.FileSystemObject();
            System.Collections.Generic.Stack<string> stack = new System.Collections.Generic.Stack<string>();
            stack.Push(path);
            while ((stack.Count > 0))
            {
                string dir = stack.Pop();
                System.IO.DirectoryInfo dirs = new System.IO.DirectoryInfo(dir);
                // delete folder ลบทั้งหมด หรือ แค่โฟลเดอร์ว่าง
                if (delFolder != DelOption.Nothing && ((delFolder == DelOption.DelEmpty && filesystem.GetFolder(dirs.FullName).Size <= 0) || delFolder == DelOption.DelAll))
                {
                        try
                        {
                            dirs.Delete(true);
                        }
                        //ถ้าลบไม่ได้ก็ย้ายมันซะ
                        catch {dirs.MoveTo(System.IO.Path.GetTempPath() + "\\" + String.Format("{0:ddMMyyyyHHmmss}", DateTime.Now) + dirs.Name); }
                        System.Threading.Thread.Sleep(10);
                }
                if (System.IO.Directory.Exists(dir))
                {
                    foreach (string file in System.IO.Directory.GetFiles(dir, "*.*"))
                    {
                        // delete Foile  ลบทั้งหมด หรือ แค่ Foile ว่าง หรือ Foile ที่มีคำที่ระบุอยู่ในชื่อไฟล์
                        if (delFile != DelOption.Nothing && ((delFile == DelOption.DelEmpty && filesystem.GetFile(file).Size <= 0) || delFile == DelOption.DelAll || delExt != ""))
                        {

                                System.IO.FileInfo _file = new System.IO.FileInfo(file);
                                try
                                {
                                    _file.Delete();
                                }
                                catch { _file.MoveTo(System.IO.Path.GetTempPath() + "\\" + String.Format("{0:ddMMyyyyHHmmss}", DateTime.Now) + _file.Name); }
                        }
                        System.Threading.Thread.Sleep(10);
                    }
                    string directoryName = null;
                    foreach (string directoryName_loopVariable in System.IO.Directory.GetDirectories(dir))
                    {
                        directoryName = directoryName_loopVariable;
                        stack.Push(directoryName);
                    }
                }
            }
            MessageBox.Show("Process Complete...");
        }