Windows Workflow Foundation: Say Hello to Tracking Service !!

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.Workflow.Runtime.Tracking;

namespace CustomTrackingService
{
    /// <summary>
    /// The workflow runtime engine requests a tracking channel from each tracking
    /// service that has provided a TrackingProfile for a workflow instance.This class
    /// implements the TrackingChannel class
    /// </summary>
	class MyTrackingChannel : TrackingChannel
	{
        /// <summary>
        /// When implemented in a derived class, notifies a receiver of data on the
        /// tracking channel that the workflow instance associated with the tracking
        /// channel has either completed or terminated. 
        /// We in our case , don't require it.
        /// </summary>
        protected override void InstanceCompletedOrTerminated()
        {
            
        }

        /// <summary>
        /// The runtime tracking infrastructure calls Send to deliver a TrackingRecord on
        /// the TrackingChannel when it matches a track point in a TrackingProfile.
        /// You can treat the tracking information sent on the TrackingChannel in whatever manner the requirements of your application dictate.
        /// In our case we are using the output window.
        /// </summary>
        /// <param name="record"></param>
        protected override void Send(TrackingRecord record)
        {
            // These are three different types of tracking records available.
            ActivityTrackingRecord atr = record as ActivityTrackingRecord;
            WorkflowTrackingRecord wtr = record as WorkflowTrackingRecord;
            UserTrackingRecord utr = record as UserTrackingRecord;

            Debug.WriteLine(string.Format("Received an tracking record [{0}]" , record.EventDateTime.ToShortDateString()));

            if( atr!= null)
            {
                Debug.WriteLine("\tReceived an activity tracking record");
                Debug.WriteLine(string.Format("\t\tName[{0}],Status[{1}]",atr.QualifiedName,atr.ExecutionStatus));
            }

            else if (wtr!= null)
            {
                Debug.WriteLine("\tReceived an workflow tracking record");
                Debug.WriteLine(string.Format("\t\tName[{0}]",wtr.TrackingWorkflowEvent.ToString()));
            }

            else if (utr!= null)
            {
                Debug.WriteLine("\tReceived an user tracking record");
                Debug.WriteLine(string.Format("\t\tName[{0}]",utr.UserData));
            }

        }


	}
}