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;

you can put application specific settings in the
appSettings section of your app.config file in your
c# windows form application.you can access,edit,update
those settings.I show you how -

by the following way you can resize a image to a predefined
dimension and resolution.you can also use it to make a image
thumbnails.

asp.net has default password recovery control and methods
to implement password recovery.you just need to use
asp.net membership provider in your app and add the
PasswordRecovery control in a page by which you want
to recover password.

ASP.NET controls automatically keep their data
when page is sent to the server in response to
events (like a user clicking a button).
this persistence of data is called view state

There are many internet browsing shortcut keys for browsers.
Following are some of them which are most common -

in asp.net application there may be different
server errors like file not found,server error,
etc.when those errors happens default ASP.NET error
page is shown which looks odd and users don't
understand what type of errors occured.to overcome
these problems it's a good idea to use own
error files.