private string DeleteObjects(HttpContext context)
        {
            string msg   = string.Empty;
            string paras = context.Request["objects"];

            if (string.IsNullOrEmpty(paras))
            {
                return("Arguments Error!");
            }
            FileApplication fileApp = new FileApplication();

            string[] items = paras.Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            if (items.Length > 0)
            {
                foreach (string item in items)
                {
                    string[] keyorvalue = item.Split("-".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
                    if (keyorvalue.Length == 3)
                    {
                        int id     = 0;
                        int fileid = 0;
                        if (int.TryParse(keyorvalue[1], out id) &&
                            int.TryParse(keyorvalue[2], out fileid) &&
                            keyorvalue[0] == DirectoryObjectType.Directory.ToString())
                        {
                            if ((!fileApp.RemoveDirectory(id)) && fileApp.BrokenRuleMessages.Count > 0)
                            {
                                msg += fileApp.BrokenRuleMessages[0].Message;
                            }
                        }
                        else
                        {
                            if (!fileApp.RemoveObjects(id, fileid) && fileApp.BrokenRuleMessages.Count > 0)
                            {
                                msg += fileApp.BrokenRuleMessages[0].Message;
                            }
                        }
                    }
                }
                return(msg);
            }
            else
            {
                return("Arguments Error!");
            }
        }