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)
{
MySqlConnection myConn = new MySqlConnection("User Id=root;Host=localhost;Database=Test");
MySqlMonitor myMonitor = new MySqlMonitor();
myMonitor.TraceEvent += new MonitorEventHandler(OnEvent);
myMonitor.IsActive = true;
MySqlCommand myCommand = new MySqlCommand("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 MySqlConnection = New MySqlConnection("User Id=root;Host=localhost;Database=Test")
Dim myMonitor As MySqlMonitor = New MySqlMonitor
AddHandler myMonitor.TraceEvent, AddressOf OnEvent
myMonitor.IsActive = True
Dim myCommand As MySqlCommand = New MySqlCommand("select count(*) from dept", myConn)
myConn.Open()
Console.WriteLine(myCommand.ExecuteScalar())
myConn.Close()
RemoveHandler myMonitor.TraceEvent, AddressOf OnEvent
Console.ReadLine()
End Sub
System.Object
System.EventArgs
Devart.Common.MonitorEventArgs
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