The event handler receives an argument of type MonitorEventArgs containing data related to this event. The following MonitorEventArgs properties provide information specific to this event.
The following sample shows how to enable and disable monitoring of database activity in your application.
static void OnEvent(object sender, MonitorEventArgs e)
{
if (e.TracePoint==MonitorTracePoint.BeforeEvent)
{
Console.WriteLine("Description: " + e.Description);
Console.WriteLine(" Extra info: " + e.ExtraInfo);
}
}
[MTAThread]
static void Main(string[] args)
{
OracleConnection myConn = new OracleConnection(
"User Id=Scott;Password=tiger;Data Source=Ora;");
OracleMonitor myMonitor = new OracleMonitor();
myMonitor.TraceEvent += new MonitorEventHandler(OnEvent);
myMonitor.IsActive = true;
OracleCommand myCommand = new OracleCommand("select count(*) from Dept",myConn);
myConn.Open();
Console.WriteLine(myCommand.ExecuteScalar());
myConn.Close();
myMonitor.TraceEvent -= new MonitorEventHandler(OnEvent);
Console.ReadLine();
}
Sub OnEvent(ByVal sender As Object, ByVal e As MonitorEventArgs)
If e.TracePoint = MonitorTracePoint.BeforeEvent Then
Console.WriteLine("Description: " & e.Description)
Console.WriteLine(" Extra info: " & e.ExtraInfo)
End If
End Sub
<MTAThread()> _
Sub Main()
Dim myConn As OracleConnection = New OracleConnection( _
"User Id=Scott;Password=tiger;Data Source=Ora;")
Dim myMonitor As OracleMonitor = New OracleMonitor
AddHandler myMonitor.TraceEvent, AddressOf OnEvent
myMonitor.IsActive = True
Dim myCommand As OracleCommand = New OracleCommand("select count(*) from Dept", myConn)
myConn.Open()
Console.WriteLine(myCommand.ExecuteScalar())
myConn.Close()
RemoveHandler myMonitor.TraceEvent, AddressOf OnEvent
Console.ReadLine()
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2