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 localhost;

public partial class _Default : System.Web.UI.Page 
{

    // Two instances of the same service
    localhost.myService serviceOne;
    localhost.myService serviceTwo;
    
    // A lock to ensure shared vars are protected
    Object myLock = new Object();
    
    // Some vars to keep track of things
    string strResults;
    DateTime myStartTime;
    DateTime myEndTime; 

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            SetStartTime();
        }
    }
    
    protected void cmdOneService_Click(object sender, EventArgs e)
    {
        SetStartTime();
        serviceOne = new localhost.myService();
        strResults += "One Service: " + serviceOne.DoWork() + "<br/><br/>";
    }

    void MyFunction(Object source, localhost.DoWorkCompletedEventArgs e)
    {
        // Make sure no other thread is accessing the results. 
        lock (myLock)
        {
            strResults += "Named Delegate: " + e.Result + "<br/><br/>";
        }
    }

    void SetStartTime()
    {
        // Get the current time
        myStartTime = DateTime.Now;
        strResults = "Page Started: " + myStartTime.ToString() + ", " + myStartTime.Millisecond.ToString() + " milliseconds<br/><br/>";
    }

    protected void Page_PreRenderComplete(object sender, EventArgs e)
    {        
        // Finally print out some details so you know how long stuff took
        myEndTime = DateTime.Now;
        strResults += "Page Rendering Finished: " + myEndTime.ToString() + ", " + myEndTime.Millisecond.ToString() + " milliseconds<br/><br/>";
        strResults += "Page rendering took: " + (myEndTime - myStartTime).ToString();
        lblResults.Text = strResults;
    }

    // Clean up
    public override void Dispose()
    {
        if (serviceOne != null) serviceOne.Dispose();
        if (serviceTwo != null) serviceTwo.Dispose();
        
        base.Dispose();
    }

    protected void cmdTwoSync_Click(object sender, EventArgs e)
    {
        SetStartTime();

        // Create two instances of the proxy
        serviceOne = new localhost.myService();
        serviceTwo = new localhost.myService();
       
        // Do some work 
        strResults += serviceOne.DoWork() + "<br/><br/>";
        strResults += serviceTwo.DoWork() + "<br/><br/>";  
    }

    protected void cmdTwoAsync_Click(object sender, EventArgs e)
    {
        SetStartTime();

        // Create two instances of the proxy
        serviceOne = new localhost.myService();
        serviceTwo = new localhost.myService();

        // Assign a new anonymous delegate to the 
        // completed event of the first service
        serviceOne.DoWorkCompleted += delegate(object source, DoWorkCompletedEventArgs args)
        {
            // Make sure no other thread is accessing the results. 
            lock (myLock)
            {
                strResults += "Anonymous Delegate:" + args.Result + "<br/><br/>";
            }
        };

        // Register a named delegate to the completed event
        serviceTwo.DoWorkCompleted += new
                localhost.DoWorkCompletedEventHandler(MyFunction);

        // Do some work 
        serviceOne.DoWorkAsync();
        serviceTwo.DoWorkAsync(); 
    }
}