The abstract class indicates that a class may be used
as a base class for other classes and is not instantiable.

the following javascript codes will help you find
out the browser details by some javascript functions

this post will show how to implement image loader in any page.
basically i will show a loading image per image before image
is loaded completely in the page.

jquery dialog is not only best for showing only content but
also can be used to show form,buttons for postback.......
but for this jquery dialog must be appended to form as -

following codes shows how to use GridView control.Its a
simple example.

in app main file -

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;