C#

class Parent
    {
        public virtual void SayHello(){
            Console.WriteLine("Hello from parent");
        }
    }

    class Child : Parent
    {
        public override void SayHello() {
            Console.WriteLine("Hello from child");
        }
    }

    class Program
    {
        delegate void FooDelegate();
        static void Main(string[] args){
            Parent p = new Parent();
            FooDelegate foo1 = p.SayHello;
            Parent p1 = new Child();
            FooDelegate foo2 = p1.SayHello;

            foo1(); // parent will say hello
            foo2(); // child will say hello
        }
    }

<input type="hidden" id="ClientTime" name="ClientTime" />

document.getElementById('ClientTime').value = new Date().getTime();

string milliseconds = Request.Form["ClientTime"];
DateTime clientTime;
if (string.IsNullOrEmpty(milliseconds)) {
   clientTime = DateTime.Now;
} else {
   clientTime = new DateTime(1970,1,1).AddMilliseconds((double)long.Parse(milliseconds));
}

mdpavel wrote:

Also I am running at the body's onload. So shouldn't it run as soon as the page load?I am not sure -- just curious .. since it's not working.

mdpavel wrote:

How do I make sure the hidden field is posted ? I am always getting null even after psotback.

Luc Pattyn wrote:

imagine a rectangular triangle