[سؤال] طلب شرح كود - نسخة قابلة للطباعة

كود :
using System;

using System.Data;

using System.Configuration;

using System.Collections;

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;



public partial class Samples_MapClickEvent : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        //Add event handler for PushpinMoved event

        GoogleMapForASPNet1.MapClicked += new GoogleMapForASPNet.MapClickedHandler(OnMapClicked);

        if (!IsPostBack)

        {



            //You must specify Google Map API Key for this component. You can obtain this key from http://code.google.com/apis/maps/signup.html

            //For samples to run properly, set GoogleAPIKey in Web.Config file.

            GoogleMapForASPNet1.GoogleMapObject.APIKey = ConfigurationManager.AppSettings["API_Key"];



            //Specify width and height for map. You can specify either in pixels or in percentage relative to it's container.

            GoogleMapForASPNet1.GoogleMapObject.Width = "1000px"; // You can also specify percentage(e.g. 80%) here

            GoogleMapForASPNet1.GoogleMapObject.Height = "500px";



            //Specify initial Zoom level.

            GoogleMapForASPNet1.GoogleMapObject.ZoomLevel = 14;



            //Specify Center Point for map. Map will be centered on this point.

            GoogleMapForASPNet1.GoogleMapObject.CenterPoint = new GooglePoint("1", 26.396893, 50.195927);



        }

    }



     //Add event handler for Map Click event

    void OnMapClicked(double dLat, double dLng)

    {

        //Print clicked map positions

        lblPushpin1.Text = "(" + dLat.ToString() + "," + dLng.ToString() + ")";

        //Generate new id for google point

        string sID = "Point1";

        GooglePoint GP1 = new GooglePoint(sID, dLat, dLng);

        GoogleMapForASPNet1.GoogleMapObject.Points.Add(GP1);



        Session["x"] = dLat.ToString();

        Session["y"] = dLng.ToString();

       Response.Redirect("SignUpStore.aspx");

    }