private string CheckExistCollectionLink(string Str)
        {
            string result = string.Empty;

            if (Str != null)
            {
                result = Str;
                int  stt = 0;
                bool rs  = false;
                while (rs == false)
                {
                    stt++;
                    if (!controller.CheckExistCollectionLink(ref rs, result))
                    {
                        result = string.Empty;
                        break;
                    }
                    if (!rs)
                    {
                        result = Str + "-" + stt;
                    }
                }
            }

            return(result);
        }