private string thaiduedate(char[] engdate) { string thaidate = ""; utility utilObj = new utility(); string isday = new string(engdate, 0, 2); string ismonth = new string(engdate, 2, 2); string isyear = "20" + new string(engdate, 4, 2); thaidate = isday + " " + utilObj.getThaiMonth(ismonth) + " " + utilObj.getThaiYear(isyear); return(thaidate); }