Timer Elapsed event does not fire

**Ignacio Machin \( .NET/ C# MVP \)** · Nov 17 '05, 09:17 AM

Re: Timer Elapsed event does not fire

Hi,

It should work ok, I have a similar deployment but instead of using a Timer
I use a FileSystemWatch er and it does work fine, did you check the
Application event log ?

what about this Config method?

what if you put this code in a win app, does it work fine?

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"Besta" <GaryBesta@gmai l.com> wrote in message
news:1126610647 .277286.307000@ g47g2000cwa.goo glegroups.com.. .[color=blue]
> Hello all,
> I am having trouble creating a windows service with a timer.
> Everything seems to go ok but the elapsed event does not fire.Can
> anyone shed any light on this, may be something simple as I am new to
> this. Full code below :
>
>
> using System;
> using System.Collecti ons;
> using System.Componen tModel;
> using System.Data;
> using System.Diagnost ics;
> using System.ServiceP rocess;
> using System.IO;
> using System.Web.Mail ;
> using System.Data.Sql Client;
> using System.Globaliz ation;
> using System.Timers;
>
>
> namespace NAVEmailPO
> {
> public class NAVEmailPO : System.ServiceP rocess.ServiceB ase
> {
> public bool debug = true;
> private System.Timers.T imer _Timer = new Timer();
> public string SMTPServer, sDBServer, sDB, sUID, sPass,
> sContactField;
> private SqlConnection oConn;
> private int _Interval = 50000;
>
>
> /// <summary>
> /// Required designer variable.
> /// </summary>
> private System.Componen tModel.Containe r components =
> null;
>
>
> public NAVEmailPO()
> {
> // This call is required by the Windows.Forms
> Component Designer.
> InitializeCompo nent();
>
>
> // TODO: Add any initialization after the
> InitComponent call
> }
>
>
> // The main entry point for the process
> static void Main()
> {
> System.ServiceP rocess.ServiceB ase[]
> ServicesToRun;
>
>
> // More than one user Service may run within
> the same process. To
> add
> // another service to this process, change the
> following line to
> // create a second service object. For example,
>
> //
> // ServicesToRun = new
> System.ServiceP rocess.ServiceB ase[] {new
> Service1(), new MySecondUserSer vice()};
> //
> ServicesToRun = new
> System.ServiceP rocess.ServiceB ase[] { new
> NAVEmailPO() };
>
>
>
> System.ServiceP rocess.ServiceB ase.Run(Service sToRun);
> }
>
>
> /// <summary>
> /// Required method for Designer support - do not
> modify
> /// the contents of this method with the code editor.
> /// </summary>
> private void InitializeCompo nent()
> {
> components = new
> System.Componen tModel.Containe r();
> this.ServiceNam e = "NAVEmailPO ";
> }
>
>
> /// <summary>
> /// Clean up any resources being used.
> /// </summary>
> protected override void Dispose( bool disposing )
> {
> if( disposing )
> {
> if (components != null)
> {
> components.Disp ose();
> }
> }
> base.Dispose( disposing );
> }
>
>
> /// <summary>
> /// Set things in motion so your service can do its
> work.
> /// </summary>
> protected override void OnStart(string[] args)
> {
> GetConfig();
> _Timer.Interval = _Interval;
> _Timer.Elapsed += new
> System.Timers.E lapsedEventHand ler(
> this._Timer_Ela psed );
> _Timer.Enabled = true;
> _Timer.Start();
> }
>
>
> /// <summary>
> /// Stop this service.
> /// </summary>
> protected override void OnStop()
> {
> _Timer.Stop();
> _Timer.Enabled = false;
> }
> /// <summary>
> /// Pause this service.
> /// </summary>
> protected override void OnPause()
> {
> _Timer.Stop();
> }
> /// <summary>
> /// Continue this service.
> /// </summary>
> protected override void OnContinue()
> {
> _Timer.Start();
> }
>
>
> /// <summary>
> /// Respond to the _Timer elapsed event.
> /// <summary>
> private void _Timer_Elapsed( object sender,
> System.Timers.E lapsedEventArgs e)
> {
> _Timer.Stop();
> //Run Code
> writeLog("TIMER ELAPSED",true);
> ProcessPO();
> _Timer.Start();
> }
> /// <summary>
> /// Gets configuration settings from text file
> /// </summary>
> private void GetConfig()
> {
> try
> {
> FileInfo fConf = new
> FileInfo(@"c:\P OSettings.txt") ;
> if (debug) {writeLog("Crea ting
> FileInfo", false);}
> StreamReader s = fConf.OpenText( );
> if (debug) {writeLog("Open ed File",
> false);}
> string read = null;
> if (debug) {writeLog("Read ing File",
> false);}
> while ((read = s.ReadLine()) != null)
> {
> getParam(read);
> }
> s.Close();
> }
> catch (Exception e)
> {
> writeLog("Syste m Error Retrieving
> Configuration" +
> e.Message.ToStr ing(), true);
> }
> }
>
>
> /// <summary>
> /// Populates global variables with values passed from
> GetConfig()
> /// </summary>
> private void getParam(string sKeyVal)
> {
> if (debug) {writeLog("Retr ieving Values using
> :" + sKeyVal, false);}
> if (sKeyVal.Substr ing(0,3).ToUppe r() != "REM")
> {
> if (sKeyVal.IndexO f(",",0) > 0)
> {
> string[] aKeyVal =
> sKeyVal.Split(' ,');
> string sKey =
> aKeyVal[0].ToUpper();
> string sVal = aKeyVal[1];
> switch (sKey)
> {
> case "SMTPSERVER ":
> SMTPServer =
> sVal;
> if (debug)
> {writeLog("Para m val = "+sVal ,false);}
> break;
> case "DATABASESERVER ":
> sDBServer =
> sVal;
> if (debug)
> {writeLog("Para m val = "+sVal ,false);}
> break;
> case "DATABASE":
> sDB = sVal;
> if (debug)
> {writeLog("Para m val = "+sVal ,false);}
> break;
> case "USERNAME":
> sUID = sVal;
> if (debug)
> {writeLog("Para m val = "+sVal ,false);}
> break;
> case "PASSWORD":
> sPass = sVal;
> if (debug)
> {writeLog("Para m val = "+sVal ,false);}
> break;
> default:
>
> writeLog("Param eter not in local variables. Param = "+sKey
> ,false);
> break;
> }
> }
> }
> }
> /// <summary>
> /// Looks for Purchase Orders to process and generates
> emails for
> suppliers
> /// </summary>
> private bool ProcessPO()
> {
> string sDSN = "provider=SQLOL EDB.1;server=" +
> sDBServer + ";UID=" +
> sUID + ";PWD=" + sPass + ";DATABASE= " + sDB;
> oConn = new SqlConnection(s DSN);
> string sSQL = "SELECT [No_] as No, [Buy-from
> Vendor No_] as VNo FROM
> [CrocusDevelopme ntupdate$Purch_ orders for e-mailing] WHERE Processed =
>
> 0 AND [Document Type] = 1";
> SqlCommand oCommand = new
> SqlCommand(sSQL ,oConn);
> SqlDataReader oRS;
> try
> {
> oConn.Open();
> oRS =
> oCommand.Execut eReader(Command Behavior.Defaul t);
> writeLog("Proce ssing Started", false);
> while (oRS.Read())
> {
> writeLog("No = " +
> oRS["No"].ToString(), false);
> }
> oRS.Close();
> oConn.Close();
>
>
> }
> catch (Exception e)
> {
> writeLog("Proce ssing PO's DB error : "
> + e.Message,true) ;
> }
> //oConn.Close();
> return true;
> }
> /// <summary>
> /// Write messages to the application event log
> /// </summary>
> public bool writeLog(string sMessage, bool bError)
> {
> string log = "Applicatio n";
> string sSource = "NAVEmailPO ";
> EventLogEntryTy pe oType;
> if (!EventLog.Sour ceExists(sSourc e))
> {
> EventLog.Create EventSource(sSo urce,
> log);
> }
> EventLog oLog = new EventLog();
>
>
> oLog.Source = sSource;
> if (String.Compare (oLog.Log, log, true,
> CultureInfo.Inv ariantCulture) != 0)
> {
> //Shafted log in use by something else
> return false;
> }
> if (bError)
> {
> oType = EventLogEntryTy pe.Warning;
> }
> else
> {
> oType = EventLogEntryTy pe.Information;
> }
> oLog.WriteEntry (sMessage, oType);
> oLog.Close();
> oLog.Dispose();
> return true;
> }
>
>
> }
>[/color]

**Besta** · Nov 17 '05, 09:17 AM

Re: Timer Elapsed event does not fire

Ignacio,
Thanks for the help. I created a new service and copied the code
and pasted it in. It now seems to work ok, so not sure what was
happening. I will slowly integrate the code back in and see how it
progresses.

Gary

Timer Elapsed event does not fire

Timer Elapsed event does not fire

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