Jquery events(click,bind,live,delegate,on)

(1)click
=======================================================
$(document).ready(function(){
$("li").click(function(){
$(this).css("color","red");
});
});

(2)bind
=========================================================
$(document).ready(function(){
$("li").bind("click",function(){
$(this).css("color","red");
});

$("li").bind("click mouseover moveout",function(event){
if(event.type=="click")
$(this).css("color","red");
});

});

(3)live
=============================================================

$(document).ready(function(){
$("li").live("click",function(){
$(this).css("color","red");
});
});

live function is introduced in 1.1 jquery it was completely removed in 1.9.

(4)delegate
============================================================

We can perform event delegation using delegate.means we have to attach event to parent it will bubble the event to children.

$(document).ready(function(){
$("li").delegate("click",function(){
$(this).css("color","red");
});

$("ul").delegete("li","click",function(event){
if(event.type=="click")
$(this).css("color","red");
});

});

(5)on
===========================================================

$(document).ready(function(){
$("li").on("click",function(){
$(this).css("color","red");
});

$("li").on("click mouseover moveout",function(event){
if(event.type=="click")
$(this).css("color","red");
});

});

if we want to append dynamically added controls click event.the best way to do is identify the parent control and bubble that event to child control

Ex:

$(document).ready(function(){
$("ul").on("click","li",function(){
$(this).css("color","red");
});
});

if we want to send an data in event

$(document).ready(function(){
$("li").on("click","{'name':'das','email':'mariyadasu67@gmail.com'}",myfunction
});

function myfunction(event)
{
console.write(event.data.name+" "+ event.data.email);
}


all event jquery recommended to use on event.

C# Design patterns(single tone)

(1)Single tone pattern
================================================================

=>Single tone pattern is used to maintain single instance in thought application.It will check already instance is created or not if instance is created it will return existing object other wise it will create new instance.

=>Single tone pattern the main class it will contain private constructor.So it will not allow out side to create an instance for this class.if we try to create an instance it will through an compile time error.

Ex.

(a)Single tone class
=================
public class Singleton
    {
        private static Singleton instance = null;
        private string Name { get; set; }
        private string IP { get; set; }
        private Singleton()
        {
            Name = "Server1";
            IP = "192.168.1.23";
        }
        public static Singleton Instance
        {
            get
            {
                    if (Singleton.instance == null)
                        Singleton.instance = new Singleton();

                    return Singleton.instance;
            }
        }

        public void Show()
        {
            Console.WriteLine("Server Information is : Name={0} & IP={1}", IP, Name);
        }

    }
(b)Implementation class
===================
class Program
    {
        static void Main(string[] args)
        {

            Singleton.Instance.Show();
            Singleton.Instance.Show();
            Console.Read();
        }
    }