Windows Workflow Foundation ASP.NET State Machine

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Workflow.Runtime.Hosting;
using System.Workflow;
using System.Workflow.Activities;
using System.Workflow.ComponentModel;
using System.Workflow.Runtime;

public partial class _Default : System.Web.UI.Page 
{
    WorkflowRuntime wr;
    WorkflowInstance wi;
    JQD.LocalService locSvc;
    ManualWorkflowSchedulerService ms;
    JQD.IProcessing p = new JQD.TestProcessor();

    protected void Page_Load(object sender, EventArgs e)
    {
        wr = JQD.WorkflowHost.RuntimeWithServices;
        if (Session["wfi_id"] == null)
        {
            wi = wr.CreateWorkflow(typeof(RegMachineWorkflow.RegStateMachine));
            Session["wfi_id"] = wi.InstanceId;
            wi.Start();
        }
        else
        {
            wi = wr.CreateWorkflow(typeof(RegMachineWorkflow.RegStateMachine),null,(Guid) Session["wfi_id"]);
        }
        ms = wr.GetService<ManualWorkflowSchedulerService>();
        locSvc = wr.GetService<JQD.LocalService>();
        ms.RunWorkflow(wi.InstanceId);
    }
    protected override void OnPreRender(EventArgs e)
    {
        base.OnPreRender(e);
        // SnapShot activity cannot be inserted into "End" Container activity. So SnapShot data=null
        // All Error Out set nextPage="End"
        if (HttpContext.Current.Items["SnapShotData"] == null ||
            ((JQD.SnapShotData)HttpContext.Current.Items["SnapShotData"]).NextStage=="End"
            )
        {
            Session["wfi_id"] = null;
            IsRegTypeSelectionStep = true;
            DataBind();
            return;
        }
        string ns=((JQD.SnapShotData)HttpContext.Current.Items["SnapShotData"]).NextStage;
        IsRegTypeSelectionStep = (ns == "selectRegType");
        IsValidationStep = (ns == "submitValidationInfo");
        IsRegDataEntryStep = (ns == "submitRegInfo");
        DataBind();
       
    }


    public bool IsRegTypeSelectionStep;
    public bool IsValidationStep;
    public bool IsRegDataEntryStep;


    protected void CasualReg_Click(object sender, EventArgs e)
    {
        JQD.RegEventArgs e1 = new JQD.RegEventArgs(wi.InstanceId, "selectRegType");
        locSvc.RaiseEvent_CasualRegSelected(p, e1);
        ms.RunWorkflow(wi.InstanceId);
    }
    protected void SubmitRegInfo_Click(object sender, EventArgs e)
    {
        JQD.RegEventArgs e1 = new JQD.RegEventArgs(wi.InstanceId, "submitRegInfo");
        locSvc.RaiseEvent_RegInfoSubmitted(p, e1);
        ms.RunWorkflow(wi.InstanceId);
    }

    protected void ValidatingReg_Click(object sender, EventArgs e)
    {
        JQD.RegEventArgs e1 = new JQD.RegEventArgs(wi.InstanceId, "selectRegType");
        locSvc.RaiseEvent_ValidatingRegSelected(p, e1);
        ms.RunWorkflow(wi.InstanceId);
    }
    protected void AgentValidation_Click(object sender, EventArgs e)
    {
        JQD.RegEventArgs e1 = new JQD.RegEventArgs(wi.InstanceId, "submitValidationInfo");
        e1.AgentID = this.tbAgnetID.Text;
        locSvc.RaiseEvent_AgentInfoSubmitted(p, e1);
        ms.RunWorkflow(wi.InstanceId);
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        JQD.RegEventArgs e1 = new JQD.RegEventArgs(wi.InstanceId, "submitValidationInfo");
        locSvc.RaiseEvent_OwnerInfoSubmitted(p, e1);
        ms.RunWorkflow(wi.InstanceId);
    }
}