public static string RegStr(string objStr)

        {

            string a = "";                                                       

            string returnStr ="";                                               

            MatchCollection ml = Regex.Matches(objStr, "<lrcid>.*?</lrcid>");   

            foreach (Match m in ml)                                              

            {                                                                    

                a = m.Value.Replace("<lrcid>", "");                           

                a = a.Replace("</lrcid>", "");  
                
                returnStr=a;                              
                
                break;                                                          

            }
                         
            return returnStr;                                                    

        }