System.Net namespace is for dealing with networking.It
is concerned with operations like downloading, uploading
files,making requests by http protocols.

you will need to access html elements from asp.net
code behind file.i show you how to access widely used
html textarea element from code behind file -

It's a very common requirement to create different types of button and
it's click event handler dynamically in asp.net application.

using SMO classes one can backup a sql server database
in .bak extension.It's a programming approach to backup
database.there are other ways but using SMO classes it
is efficient and error free.

to create and use the object instances on remote machines .Net remoting
is used,without any DCOM involved.

this article will cover .net remoting with common hosting method in IIS.

it is easier to print part of page.the part of the page
may be under a div or panel.you can achieve this from code
behind file too as per requirement.here i showing only
in page lavel -

if we need some fields from different tables
temporarily in our software or application then