I have a TimerJobWorkflow and I need to start the workflow automatically when an added or changed. This is not working. I am not sure if I can use an EvenReceiver to schedule it to run automatically. Any suggestion will be appreciated. Below is the code .

     public sealed partial class TimerJobWorkflow : SequentialWorkflowActivity
    {
        public TimerJobWorkflow()
        {
            InitializeComponent();        
        }

         

        public Guid workflowId = default(System.Guid);
        public SPWorkflowActivationProperties workflowProperties = new SPWorkflowActivationProperties();
        private static DependencyProperty _ContextProperty = DependencyProperty.Register("_Context", typeof(WorkflowContext), typeof(TimerJobWorkflow));
        public WorkflowContext _workflowNew
        {
            get
            {
                return (WorkflowContext)base.GetValue(_ContextProperty);
            }
            set
            {
                base.SetValue(_ContextProperty, value);
            }
        }
         
        private void onWorkflowActivated(object sender, ExternalDataEventArgs e)
        {
            textworkflow();
        }
         
        public void  textworkflow()
        {
            if (_workflowNew == null)
            {
                _workflowNew = new WorkflowContext();
                _workflowNew.Initialize(workflowProperties);
            }
        }
       
        private void isWorkflowPending(object sender, ConditionalEventArgs e)
        {
            textworkflow();

            e.Result = true;
            try
            {
                DataContext data = new DataContext(_workflowNew.Web.Url);            
                SyncData();
                int NextRun = NextRun();
                DateTime time = DateTime.Now.AddMilliseconds(NextRun);
                System.Threading.Thread.Sleep(NextRun);
                TimerJobManagerItem item = new TimerJobManagerItem();                 
                item.Title = DateTime.Now.ToString();
                item.Description = "Next Run: " + time.ToString();
                data.TimerJobManager.InsertOnSubmit(item);
                data.SubmitChanges();
                data.Dispose();
            }
            catch (Exception ex)
             
        }

 private int NextRun()
        {           

            DateTime nextday = new DateTime(DateTime.Now.AddDays(1).Year, DateTime.Now.AddDays(1).Month, DateTime.Now.AddDays(1).Day);
            DateTime now = DateTime.Now;
            tomorrow = nextday.AddHours(2);
            return (int)nextday.Subtract(now).TotalMilliseconds;
        }
 
        private void onWorkflowItemChanged(object sender, ExternalDataEventArgs e)
        {
            Contextdata();
        }
      public void CheckJob()
        {
            Stopwatch sw = Stopwatch.StartNew();
            TimeSpan elapsedTime;
            int seconds = 0;

            SPSecurity.RunWithElevatedPrivileges(delegate()
            {
                using (SPSite site = new SPSite(_Context.Web.Site.ID))
                {
                    using (SPWeb Web = site.OpenWeb(_Context.Web.ID))
                    {
                        Web.AllowUnsafeUpdates = true;
                        DataContext data = new DataContext(Web.Url);
                        var item = data.TimerJob.Where(c => c.Id == int.Parse(workflowProperties.Item["ID"].ToString())).First();
                        item.Title = "Workflow In Progress: " + DateTime.Now.ToString();
                        item.Description = "In Progress";
                        data.SubmitChanges();                        
                       MyEventReceiver  receiver = new  MyEventReceiver(Web, -1);
                        try
                        {
                            receiver.CheckJob(Web);
                            sw.Stop();
                            elapsedTime = sw.Elapsed;                             
                            seconds += elapsedTime.Seconds;

                        }
                        catch (Exception ex)
                        {
                             ex.Message.ToString();
                           
                        }
                        try
                        {
                            sw = Stopwatch.StartNew();
                            receiver.LateJob(Web);                              
                            sw.Stop();
                            elapsedTime = sw.Elapsed;
                            seconds += elapsedTime.Seconds;
                            
                        }
                        catch (Exception ex)
                        {
                          ex.Message.ToString();
                           
                        }

                        int nextRuntime = NextRun();
                        DateTime time = DateTime.Now.AddMilliseconds(nextRuntime);
                        item = data.TimerJob.Where(c => c.Id == int.Parse(workflowProperties.Item["ID"].ToString())).First();
                        item.Title = "Workflow Completed At: " + DateTime.Now.ToString() + ". Next Run - " + time.ToString();
                        item.Description = log;
                        data.SubmitChanges();

                    }
                }
            });