Usage of thread pool in project

 Public voidGeneratedata (stringdbfullname) {            BOOLbsuccess =true; if(File.exists (dbfullname)) {file.delete (dbfullname);            } System.Data.SQLite.SQLiteConnection.CreateFile (Dbfullname); if(File.exists (dbfullname)) {sqlitehelper.connectionstring=Sqlitehelper.getconn (dbfullname); Bsuccess= Sqlitehelper.initgeneratedb (New string[] {commongeneratedata.createbuildingtype, commongeneratedata.createlocationb Asicinfo, Commongeneratedata.createlocationotherinfo, Commongeneratedata.createele Location, commongeneratedata.createelelocationpct, Commongeneratedata.createlocati                Onattach, commongeneratedata.createelection}); using(Sqliteconnection Sqliteconn =Newsqliteconnection (sqlitehelper.connectionstring))                    {Sqliteconn.open (); List<Action<SQLiteTransaction>> delegetlist =NewList<action<sqlitetransaction>>() {commongeneratedata.generatebuildingtype, Commongeneratedata.gener Atelocationbasicinfo, Commongeneratedata.generatelocationotherinfo, Commonge Neratedata.generateelelocation, commongeneratedata.generateelelocationpct, C                     Ommongeneratedata.generatelocationattach, commongeneratedata.generateelection}; Waithandle[] Waithandles=Newwaithandle[]{NewAutoResetEvent (false),                        NewAutoResetEvent (false),                        NewAutoResetEvent (false),                        NewAutoResetEvent (false),                        NewAutoResetEvent (false),                        NewAutoResetEvent (false),                        NewAutoResetEvent (false)                    }; using(Sqlitetransaction tran =sqliteconn.begintransaction ()) {                         for(inti =0; I < Delegetlist. Count; i++) {Action<SQLiteTransaction> Deleget =Delegetlist[i]; AutoResetEvent resetevent=(AutoResetEvent) waithandles[i]; ThreadPool.QueueUserWorkItem (StateInfo={deleget (tran);                            Resetevent.set ();                        }, Waithandles[i]);                        } waithandle.waitall (Waithandles);                    Tran.commit ();                } sqliteconn.close (); }            }        }

Usage of thread pool in project