Multithreaded Operations (ThreadPool.QueueUserWorkItem

Main thread:

1         Private voidGetpolicy_load (Objectsender, EventArgs e)2         {3             ////threadpool.queueuserworkitem (New WaitCallback (THREADSP));4             Try5             {6MessageBox.Show ("Start"); 7manualresetevent[] _manualevents =Newmanualresetevent[2];8_manualevents[0] =NewManualResetEvent (false);9_manualevents[1] =NewManualResetEvent (false);TenThreadPool.QueueUserWorkItem (NewWaitCallback (ThreadSP2), _manualevents[0]);  -                  -                 foreach(varVinch_manualevents) the                 { - V.waitone (); -                 }  -                 //after the thread finishes executing the following main thread code +MessageBox.Show ("it's over."); -             } +             Catch(Exception ex) A             { at   -             } -}

ThreadSP2 Method:

 //xintianyou Access Policy (Method 2)        Private voidThreadSP2 (Objectobj) {            ////Processing Methods            //String sql = "Select Id,start,end from TB"; //DataTable dt = SqlHelper.ExecuteDataset ("Connection string", System.Data.CommandType.Text, SQL, NULL).            Tables[0]; //list<string> List; //for (int i = 0; i < dt. Rows.Count; i++)//{            //list = new list<string> (); //list. ADD (dt. rows[i]["Start"] + ";" + dt. rows[i]["End"] + ";" + dt.            rows[i]["id"]); //GJShopping2 S1 = new GJShopping2 (); //ThreadPool.QueueUserWorkItem (New WaitCallback (S1.            getshopping), list); //Thread.Sleep (1500); //}MessageBox.Show ("ThreadSP2 method executed"); ManualResetEvent e=(ManualResetEvent) obj;        E.set (); }

Multithreaded Operations (ThreadPool.QueueUserWorkItem